Plunger spraying device for plunger pump machining

Abstract

The utility model belongs to the technical field of plunger machining, particularly relates to a plunger spraying device for plunger pump machining, and provides the following scheme that the plunger spraying device comprises a support, a spraying mechanism and a positioning mechanism, the spraying mechanism and the positioning mechanism are installed on the support, and the spraying mechanism comprises a driving motor, a driving roller, a fixing column, a moving part, a spraying gun, a driving disc, a synchronous belt and a driving ring. According to the tungsten carbide coating spraying device, the driving motor is started to drive the driving roller to rotate, the driving roller drives the moving part to move up and down along the fixed column through the inclined groove in the outer wall of the driving roller, the moving part synchronously drives the spraying gun to move, and a tungsten carbide coating is sprayed to the plunger in the rotating process; the driving disc drives the driving ring to rotate, the driving ring synchronously drives the sleeve to rotate, and at the moment, the sleeve synchronously drives the plunger at the bottom of the sleeve to rotate through the limiting seat so as to be matched with a spray gun to spray the surface of the plunger, so that the plunger is sprayed more uniformly, and the plunger is conveniently positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger processing, in particular to a plunger spraying device for plunger pump processing. Background Art

[0002] The plunger pump is an important device in the hydraulic system. It relies on the reciprocating motion of the plunger in the cylinder to change the volume of the sealed working chamber to achieve oil suction and oil pressure. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency and convenient flow regulation. It is widely used in high pressure, large flow and flow regulation occasions, such as hydraulic presses, engineering machinery and ships. The plunger is assembled in a long cylinder and can move forward and backward. There are two inlet and outlet pipes with valves connected to the cylinder, and the gap between the plunger and the cylinder is equipped with a suitable seal.

[0003] In order to ensure its wear resistance, the plunger of the plunger pump is usually sprayed with tungsten carbide coating. However, in the actual spraying process, the plunger has different sizes, which makes the positioning process more complicated and the spraying is not uniform, affecting the spraying quality. Utility Model Content

[0004] The purpose of the utility model is to provide a plunger spraying device for plunger pump processing in view of the defects of the prior art, so as to solve the problems raised in the above-mentioned background technology.

[0005] A plunger spraying device for plunger pump processing, comprising a bracket, a spraying mechanism and a positioning mechanism installed on the bracket, the spraying mechanism comprising a driving motor, a driving roller, a fixed column, a moving part, a spray gun, a driving disc, a synchronous belt and a driving ring, the driving roller is installed at the output end of the driving motor through a connecting shaft, one end of the moving part is embedded in the driving roller inclined groove and can move up and down along the fixed column, the spray gun is installed on the moving part, the driving disc is installed on the connecting shaft, and the driving ring is connected to the driving disc through the synchronous belt;

[0006] The positioning mechanism includes a sleeve, a limit seat, a stud and a rotating seat. The sleeve is rotatably installed above the bracket and embedded and fixed in the middle of the driving ring. The limit seat runs through the sleeve and the height of the limit seat can be limited by the studs and nuts on both sides of the sleeve. The rotating seat is installed at the bottom end of the bracket and corresponds to the limit seat.

[0007] By adopting the above technical solution, synchronous spraying of the plunger is achieved, the spraying is more uniform, and the positioning of the plunger is easy.

[0008] A baffle is also installed on one side end of the bracket, and a surrounding plate is also arranged on the outer side of the rotating seat at the bottom end of the bracket.

[0009] By adopting the above technical solution, the plunger is protected to a certain extent.

[0010] The diameter of the driving disk is smaller than the diameter of the driving ring.

[0011] By adopting the above technical solution, the spray gun can completely spray the surface of the plunger during the movement.

[0012] The outer wall of the limit seat is oppositely provided with convex keys, and the inner wall of the sleeve is correspondingly provided with concave keys, so that the limit seat can only move up and down in the sleeve.

[0013] By adopting the above technical solution, the limiting seat can move up and down normally.

[0014] A flat plate is installed on the top of the limit seat, and on the outer wall ear plate of the sleeve. The stud is fixed on the ear plate of the sleeve and penetrates the top flat plate of the limit seat.

[0015] By adopting the above technical solution, the plunger can be adjusted and positioned.

[0016] The beneficial effects of the plunger spraying device for plunger pump processing of the utility model are:

[0017] Move the limit seat downward so that the limit seat abuts against the top end of the plunger, and limit the limit seat by turning the nut on the stud, start the drive motor to drive the drive roller to rotate, and the drive roller drives the moving part to move up and down along the fixed column through the oblique groove on its outer wall, and the moving part drives the spray gun to move synchronously, and the tungsten carbide coating is sprayed on the plunger during the rotation process. When the drive motor is started, it can drive the drive disk to rotate synchronously. The drive disk drives the drive ring to rotate, and the drive ring drives the sleeve to rotate synchronously. At this time, the sleeve drives the plunger at its bottom to rotate synchronously through the limit seat, so as to cooperate with the spray gun to spray the surface of the plunger, so that the spraying of the plunger is more uniform and it is convenient to position the plunger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the plunger spraying device for plunger pump processing proposed by the utility model;

[0019] Figure 2 This is another perspective view of the plunger spraying device for plunger pump processing proposed by the utility model.

[0020] In the figure: 1. bracket; 2. driving motor; 3. driving roller; 4. fixed column; 5. moving part; 6. spray gun; 7. driving disk; 8. synchronous belt; 9. driving ring; 10. sleeve; 11. limiting seat; 12. stud; 13. rotating seat; 14. enclosure; 15. baffle; 16. plunger. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0022] Reference Figure 1-2 A plunger spraying device for plunger pump processing, comprising a bracket 1, a spraying mechanism and a positioning mechanism installed on the bracket 1, the spraying mechanism comprising a driving motor 2, a driving roller 3, a fixed column 4, a moving part 5, a spray gun 6, a driving disc 7, a synchronous belt 8 and a driving ring 9, the driving roller 3 is installed at the output end of the driving motor 2 through a connecting shaft, one end of the moving part 5 is embedded in the inclined groove of the driving roller 3, and can move up and down along the fixed column 4, the spray gun 6 is installed on the moving part 5, the driving disc 7 is installed on the connecting shaft, and the driving ring 9 is connected to the driving disc 7 through a synchronous belt 8;

[0023] The positioning mechanism includes a sleeve 10, a limit seat 11, a stud 12 and a rotating seat 13. The sleeve 10 is rotatably mounted above the bracket 1 and embedded and fixed in the middle of the driving ring 9. The limit seat 11 is set through the sleeve 10, and the height of the limit seat 11 can be limited by the studs 12 on both sides thereof cooperating with nuts. The rotating seat 13 is installed at the bottom end of the bracket 1 and is set corresponding to the limit seat 11.

[0024] The inclined grooves on the driving roller 3 are preferably elliptical grooves, and may also be semi-elliptical grooves, which are distributed on the driving roller 3 from top to bottom, so that when the driving roller 3 is driven to rotate, the driving roller 3 can drive the moving part 5 to move up and down along the fixed column 4, and the spray gun 6 follows the movement of the moving part 5 to spray the surface of the plunger 16.

[0025] A baffle 15 is also installed at one end of the bracket 1, and a surrounding plate 14 is also provided at the bottom end of the bracket 1 outside the rotating seat 13; the baffle 15 is installed on one side of the bracket 1 to play a protective role to prevent external factors from interfering with the spraying of the plunger 16.

[0026] The diameter of the drive disk 7 is smaller than the diameter of the drive ring 9; according to this arrangement, after the plunger 16 rotates one circle, the spray gun 6 moves a small distance, which is enough to spray one circle of the plunger 16 and ensure that the plunger 16 is sprayed evenly.

[0027] The outer wall of the limit seat 11 is oppositely provided with a convex key, and the inner wall of the sleeve 10 is correspondingly provided with a concave key, so that the limit seat 11 can only move up and down in the sleeve 10; a flat plate is installed on the top of the limit seat 11, and the stud 12 is fixed on the ear plate of the sleeve 10 on the outer wall of the sleeve 10, and passes through the top flat plate of the limit seat 11;

[0028] A convex key is arranged on the outer wall of the limit seat 11, and a concave key is arranged on the inner wall of the sleeve 10. The limit seat 11 is fitted on the inner wall of the sleeve 10, and the limit seat 11 can be stably moved up and down. After the plunger 16 is positioned at the bottom of the limit seat 11 and the end surface of the rotating seat 13, when the driving motor 2 is driven, it can drive the driving disk 7 to rotate synchronously. The driving disk 7 drives the driving ring 9 to rotate through 8, and the driving ring 9 synchronously drives the sleeve 10 to rotate. At this time, the sleeve 10 synchronously drives the plunger 16 at its bottom to rotate through the limit seat 11, so as to cooperate with the spray gun 6 to spray the surface of the plunger 16.

[0029] The plunger 16 is moved as follows Figure 1 The method shown is placed on the rotating seat 13, and then the limiting seat 11 is moved downward so that the limiting seat 11 is in contact with the top end of the plunger 16, and the limiting seat 11 is limited by rotating the nut on the stud 12. After the positioning of the plunger 16 is completed, the driving motor 2 can be driven to drive the driving roller 3 to rotate, and the driving roller 3 drives the moving part 5 to move up and down along the fixed column 4 through the oblique groove on its outer wall, and the moving part 5 synchronously drives the spray gun 6 to move. Before the spray gun 6 moves, the external spray machine is started, and then the plunger 16 in the rotating process can be sprayed with a tungsten carbide coating to enhance the wear resistance of the plunger 16 and extend its service life.

[0030] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A plunger spraying device for plunger pump processing, comprising a bracket (1), a spraying mechanism and a positioning mechanism mounted on the bracket (1), characterized in that: The spraying mechanism comprises a driving motor (2), a driving roller (3), a fixed column (4), a moving part (5), a spray gun (6), a driving disc (7), a synchronous belt (8) and a driving ring (9), wherein the driving roller (3) is mounted at the output end of the driving motor (2) via a connecting shaft, one end of the moving part (5) is embedded in the inclined groove of the driving roller (3) and can move up and down along the fixed column (4), the spray gun (6) is mounted on the moving part (5), the driving disc (7) is mounted on the connecting shaft, and the driving ring (9) is connected to the driving disc (7) through the synchronous belt (8); The positioning mechanism comprises a sleeve (10), a limiting seat (11), a stud (12) and a rotating seat (13); the sleeve (10) is rotatably mounted above the bracket (1) and embedded and fixed in the middle of the driving ring (9); the limiting seat (11) passes through the sleeve (10) and can limit the height of the limiting seat (11) by means of the studs (12) on both sides thereof cooperating with nuts; the rotating seat (13) is mounted on the bottom end of the bracket (1) and is arranged corresponding to the limiting seat (11).

2. The plunger spraying device for plunger pump processing according to claim 1, characterized in that: A baffle (15) is also installed at one end of the bracket (1), and a surrounding plate (14) is also provided at the bottom end of the bracket (1) outside the rotating seat (13).

3. The plunger spraying device for plunger pump processing according to claim 2, characterized in that: The diameter of the driving disk (7) is smaller than the diameter of the driving ring (9).

4. The plunger spraying device for plunger pump processing according to claim 3, characterized in that: The outer wall of the limiting seat (11) is oppositely provided with convex keys, and the inner wall of the sleeve (10) is correspondingly provided with concave keys, so that the limiting seat (11) can only move up and down in the sleeve (10).

5. The plunger spraying device for plunger pump processing according to claim 4, characterized in that: The top of the limit seat (11) is provided with a flat plate, which is mounted on the outer wall ear plate of the sleeve (10). The stud (12) is fixed on the ear plate of the sleeve (10) and passes through the top flat plate of the limit seat (11).

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