Sliding shoe machining tool and sliding shoe machining equipment

Abstract

The utility model provides a sliding shoe machining tool and sliding shoe machining equipment, and relates to the technical field of plunger pumps. The sliding shoe machining tool comprises a positioning tool body and a positioning block. A circular machining hole is formed in the positioning tool body, at least one sliding shoe positioning hole used for positioning a sliding shoe is formed in the positioning tool body, and the sliding shoe positioning holes are distributed in the circumferential direction of the circular machining hole. The axial direction of the sliding shoe positioning hole is perpendicular to the axial direction of the circular machining hole so that the arc face of the sliding shoe can face the circle center of the circular machining hole. The positioning block used for pre-tightening the sliding shoe is installed on the positioning tool body so that the sliding shoe can be pre-tightened in the sliding shoe positioning hole. The sliding shoe machining equipment comprises the sliding shoe machining tool. The technical effect of improving the machining precision of the circular arc surface of the sliding shoe is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pumps, in particular to a sliding shoe processing tool and sliding shoe processing equipment. Background Art

[0002] There is a friction pair between the slipper and the eccentric wheel in the structure of the plunger pump, and the slipper is the key part of this friction pair. The processing accuracy of the slipper itself is an important factor affecting the operating stability of the plunger pump.

[0003] The characteristics of the friction pair of the slipper and eccentric wheel are cylindrical surface matching, high relative motion speed, and oil film lubrication. The contact surface of the slipper and eccentric wheel is divided into a sealing surface and an auxiliary support surface. After the high-pressure oil in the center of the slipper forms an oil film through the sealing surface, it leaks into the oil tank and then leaks to the outside through the oil tank and the oil drain hole. Therefore, the formation of the oil film is very critical, which will affect the normal and stable operation and service life of the plunger pump. The machining dimensional accuracy of the slipper itself and the degree of fit between the arc surface of the slipper and the eccentric wheel directly affect the friction pair.

[0004] The processing method of the cylindrical surface of the eccentric wheel is generally grinding with a grinding wheel, and the dimensional accuracy and cylindricity of the cylindrical surface can be guaranteed. The arc surface of the sliding shoe that contacts and cooperates with it is conventionally milled by a machining center, that is, the arc is carved out by a milling cutter. Its characteristics are convenient clamping, simple debugging, and easy implementation. However, the contour of the arc surface obtained by this processing method is not high, it is easy to produce vibration marks, and the finish does not meet the requirements. Due to the large milling force, it may also cause micro deformation of the arc surface. The result is that there is a large gap between the arc surface of the sliding shoe and the cylindrical surface of the eccentric wheel, which makes it difficult to form a stable oil film and cannot play a good lubrication role, affecting the normal operation of the plunger pump. Utility Model Content

[0005] The utility model aims to provide a sliding shoe processing tool and sliding shoe processing equipment to alleviate the technical problem of poor processing accuracy of the sliding shoe arc surface in the prior art.

[0006] In a first aspect, an embodiment of the utility model provides a sliding shoe processing tool, including a positioning tool body and a positioning block;

[0007] A circular machining hole is provided on the positioning tool body, and at least one sliding shoe positioning hole for positioning the sliding shoe is provided on the positioning tool body, and the sliding shoe positioning holes are distributed along the circumference of the circular machining hole;

[0008] The axial direction of the sliding shoe positioning hole is perpendicular to the axial direction of the circular processing hole, so that the arc surface of the sliding shoe can face the center of the circular processing hole;

[0009] The positioning block for pre-tightening the sliding shoe is installed on the positioning tool body to pre-tighten the sliding shoe in the sliding shoe positioning hole.

[0010] In combination with the first aspect, an embodiment of the utility model provides a possible implementation of the first aspect, wherein the above-mentioned multiple sliding shoe positioning holes are evenly distributed along the circumference of the circular processing hole.

[0011] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein the number of the sliding shoe positioning holes is six.

[0012] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein the positioning tool body is provided with a mounting hole at the top of the sliding shoe positioning hole, and the positioning block is provided with a mounting light hole corresponding to the mounting hole;

[0013] The bottom of the positioning block has a positioning arc that can be matched with the outer contour of the sliding shoe.

[0014] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein the longitudinal section of the positioning block is T-shaped.

[0015] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein the above-mentioned sliding shoe processing tooling further includes a pressing plate;

[0016] The sliding shoe positioning hole passes through the positioning fixture body, the pressing plate is installed on the outer side wall of the positioning fixture body, and the pressing plate can block the sliding shoe positioning hole so that the pressing plate can abut against the sliding shoe.

[0017] In combination with the first aspect, an embodiment of the utility model provides a possible implementation of the first aspect, wherein a mounting surface for mounting the pressure plate is provided on the outer side wall of the positioning tool body, and the pressure plate is mounted on the mounting surface via a threaded connection.

[0018] In combination with the first aspect, an embodiment of the utility model provides a possible implementation of the first aspect, wherein the above-mentioned sliding shoe processing tooling also includes an adjusting piece, and the adjusting piece is located between the pressure plate and the sliding shoe.

[0019] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein the adjustment member is ring-shaped.

[0020] In a second aspect, an embodiment of the utility model provides a sliding shoe processing equipment, including the sliding shoe processing tooling.

[0021] Beneficial effects:

[0022] The utility model provides a sliding shoe processing tool, comprising a positioning tool body and a positioning block; a circular processing hole is opened on the positioning tool body, and at least one sliding shoe positioning hole for positioning the sliding shoe is opened on the positioning tool body, and the sliding shoe positioning holes are distributed along the circumference of the circular processing hole; the axial direction of the sliding shoe positioning hole is perpendicular to the axial direction of the circular processing hole, so that the arc surface of the sliding shoe can face the center of the circular processing hole; the positioning block for pre-tightening the sliding shoe is installed on the positioning tool body to pre-tighten the sliding shoe in the sliding shoe positioning hole.

[0023] Specifically, when producing the slipper, the slipper with the arc surface to be finely machined is installed in the slipper positioning hole of the positioning tool body, so that the arc surface of the slipper faces the inside of the circular machining hole, and then the slipper is pressed by the positioning block, and then the positioning tool body is installed on the lathe, and then the arc surface is machined by the turning tool, thereby changing the previous milling process with low machining accuracy to turning process with high machining accuracy, improving the machining accuracy of the arc surface of the slipper, improving the contour, and more closely fitting the cylindrical surface of the eccentric wheel.

[0024] The utility model provides a sliding shoe processing equipment, including sliding shoe processing tooling. Compared with the prior art, the sliding shoe processing equipment has the above advantages, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of a sliding shoe after the sliding shoe is installed by the sliding shoe processing tooling provided in an embodiment of the utility model;

[0027] Figure 2 A schematic diagram of a positioning tool body in a sliding shoe processing tool provided in an embodiment of the utility model;

[0028] Figure 3 A schematic diagram of a positioning block in a sliding shoe processing tool provided in an embodiment of the utility model;

[0029] Figure 4 A top view of a sliding shoe processing tool provided in an embodiment of the utility model;

[0030] Figure 5 A cross-sectional view of a sliding shoe after the sliding shoe is installed by a sliding shoe processing tool provided in an embodiment of the utility model;

[0031] Figure 6 A cross-sectional view of a sliding shoe to be processed by the sliding shoe processing tooling provided in an embodiment of the utility model.

[0032] icon:

[0033] 100 - positioning tool body; 110 - circular processing hole; 120 - sliding shoe positioning hole; 130 - mounting surface; 140 - turning processing track;

[0034] 200 - positioning block; 210 - positioning arc;

[0035] 300 - pressure plate;

[0036] 400 - Adjustment parts;

[0037] 500 - Slipper; 510 - Arc surface. DETAILED DESCRIPTION

[0038] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0043] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present embodiment provides a sliding shoe processing tool, including a positioning tool body 100 and a positioning block 200; a circular processing hole 110 is opened on the positioning tool body 100, and at least one sliding shoe positioning hole 120 for positioning the sliding shoe 500 is opened on the positioning tool body 100, and the sliding shoe positioning holes 120 are distributed circumferentially along the circular processing hole 110; the axial direction of the sliding shoe positioning hole 120 is perpendicular to the axial direction of the circular processing hole 110, so that the arc surface 510 of the sliding shoe 500 can face the center of the circular processing hole 110; the positioning block 200 for pre-tightening the sliding shoe 500 is installed on the positioning tool body 100 to pre-tighten the sliding shoe 500 in the sliding shoe positioning hole 120.

[0044] Specifically, when producing the slipper 500, the slipper 500 with the arc surface 510 to be finely machined is installed in the slipper positioning hole 120 of the positioning tool body 100, so that the arc surface 510 of the slipper 500 faces the inner side of the circular machining hole 110, and then the slipper 500 is pressed by the positioning block 200, and then the positioning tool body 100 is installed on the lathe, and then the arc surface 510 is machined by the turning tool, thereby changing the previous milling process with low machining accuracy to turning process with high machining accuracy, thereby improving the machining accuracy of the arc surface 510 of the slipper 500, improving the contour, and more closely fitting the cylindrical surface of the eccentric wheel.

[0045] It should be noted that, by setting the sliding shoe processing tooling, the adverse factors of chatter marks and micro deformation of the sliding shoe 500 during milling are avoided, so the finish problem is solved. Moreover, by setting the sliding shoe processing tooling, the arc surface 510 of the sliding shoe 500 that is worn during use can be quickly repaired by using a lathe processing method, which greatly reduces the use cost of the sliding shoe 500 and saves the time for reprocessing.

[0046] Among them, a plurality of sliding shoe positioning holes 120 are opened on the positioning tool body 100, and the plurality of sliding shoe positioning holes 120 are evenly distributed along the circumference of the circular processing hole 110. In addition, the number of sliding shoe positioning holes 120 can be set to six. Through such a setting, the arc surfaces 510 on the plurality of sliding shoes 500 can form a circle, so that a plurality of sliding shoes 500 can be processed together at the same time, the consistency of the precision of the sliding shoes 500 is higher, and the processing efficiency is also higher.

[0047] In addition, if Figure 5 As shown, after the multiple sliding shoes 500 are installed and positioned, the arc surface 510 of the sliding shoe 500 can protrude from the inner wall of the positioning tool body 100, so that the arc surfaces 510 of the multiple sliding shoes 500 form a complete circle. At this time, the turning tool can complete the processing of the arc surface 510 of the sliding shoe 500 according to this circle, and this circle is the turning processing trajectory 140.

[0048] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in an optional scheme of this embodiment, a mounting hole is provided at the top of the sliding shoe positioning hole 120 of the positioning tool body 100, and a mounting light hole corresponding to the mounting hole is provided on the positioning block 200; the bottom of the positioning block 200 has a positioning arc 210 that can adapt to the outer contour of the sliding shoe 500.

[0049] The longitudinal section of the positioning block 200 is T-shaped.

[0050] Specifically, the positioning block 200 is fixed to the top of the positioning tool body 100 by bolts, and the positioning arc 210 at the bottom of the positioning block 200 can adapt to the outer contour of the sliding shoe 500, and when the positioning block 200 is connected to the positioning tool body 100, the positioning block 200 can press the sliding shoe 500 to prevent the sliding shoe 500 from moving during the processing.

[0051] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in an optional scheme of this embodiment, the sliding shoe processing tooling also includes a pressing plate 300; the sliding shoe positioning hole 120 passes through the positioning tooling body 100, and the pressing plate 300 is installed on the outer wall of the positioning tooling body 100, and the pressing plate 300 can block the sliding shoe positioning hole 120 so that the pressing plate 300 can abut against the sliding shoe 500.

[0052] The outer wall of the positioning tool body 100 is provided with a mounting surface 130 for mounting the pressing plate 300 , and the pressing plate 300 is mounted on the mounting surface 130 via a threaded connector.

[0053] The sliding shoe processing tooling further includes an adjusting member 400 , and the adjusting member 400 is located between the pressing plate 300 and the sliding shoe 500 .

[0054] The adjusting member 400 is ring-shaped.

[0055] Specifically, the sliding shoe positioning hole 120 is a through hole, and the sliding shoe 500 is inserted into the sliding shoe positioning hole 120 from one side of the circular processing hole 110. A pressure plate 300 is installed at the other end of the sliding shoe positioning hole 120. The bottom of the pressure plate 300 can be installed on the mounting surface 130 of the positioning tool body 100 by bolts. The main body of the pressure plate 300 can abut against the sliding shoe 500, thereby ensuring that the sliding shoe 500 will not move during the processing and ensuring the processing accuracy.

[0056] Moreover, annular adjustment parts with different thicknesses can be arranged between the pressure plate 300 and the sliding shoe 500. The adjustment parts can be gaskets. Through the arrangement of the adjustment parts, when the arc surface 510 of the sliding shoe 500 is repaired, the diameter of the arc surface 510 can be relatively reduced, and then turning can be performed, so that the worn arc surface 510 can be turned off to obtain a new arc surface 510.

[0057] It should be noted that the sliding shoe positioning hole 120 can be set as a blind hole. When the sliding shoe 500 is processed, one end of the sliding shoe 500 abuts against the bottom of the hole, and the arc surface 510 to be processed protrudes from the inner circle of the positioning tool body 100, thereby completing the turning process.

[0058] This embodiment provides a sliding shoe processing equipment, including a sliding shoe processing tool.

[0059] Specifically, the slipper processing equipment provided in this embodiment has the advantages of the above-mentioned slipper processing tooling compared with the prior art, which will not be repeated here.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A sliding shoe processing tool, characterized in that: include: A positioning tool body (100) and a positioning block (200); A circular machining hole (110) is provided on the positioning tool body (100), and at least one sliding shoe positioning hole (120) for positioning the sliding shoe (500) is provided on the positioning tool body (100), and the sliding shoe positioning holes (120) are distributed along the circumference of the circular machining hole (110); The axial direction of the sliding shoe positioning hole (120) is perpendicular to the axial direction of the circular processing hole (110), so that the arc surface (510) of the sliding shoe (500) can face the center of the circular processing hole (110); The positioning block (200) for pre-tightening the sliding shoe (500) is mounted on the positioning tool body (100) to pre-tighten the sliding shoe (500) in the sliding shoe positioning hole (120).

2. The sliding shoe processing tool according to claim 1, characterized in that: The plurality of sliding shoe positioning holes (120) are evenly distributed along the circumference of the circular processing hole (110).

3. The sliding shoe processing tool according to claim 2, characterized in that: The number of the sliding shoe positioning holes (120) is six.

4. The sliding shoe processing tool according to claim 1, characterized in that: The positioning tool body (100) is provided with a mounting hole at the top of the sliding shoe positioning hole (120), and the positioning block (200) is provided with a mounting light hole corresponding to the mounting hole; The bottom of the positioning block (200) has a positioning arc (210) that can be adapted to the outer contour of the sliding shoe (500).

5. The sliding shoe processing tool according to claim 4, characterized in that: The longitudinal section of the positioning block (200) is T-shaped.

6. The sliding shoe processing tool according to claim 1, characterized in that: Also includes a pressing plate (300); The sliding shoe positioning hole (120) passes through the positioning tool body (100), and the pressure plate (300) is installed on the outer wall of the positioning tool body (100), and the pressure plate (300) can block the sliding shoe positioning hole (120) so that the pressure plate (300) can abut against the sliding shoe (500).

7. The sliding shoe processing tool according to claim 6, characterized in that: An installation surface (130) for installing the pressing plate (300) is provided on the outer side wall of the positioning tool body (100), and the pressing plate (300) is installed on the installation surface (130) via a threaded connection.

8. The sliding shoe processing tool according to claim 6, characterized in that: It also includes an adjusting member (400), wherein the adjusting member (400) is located between the pressing plate (300) and the sliding shoe (500).

9. The sliding shoe processing tool according to claim 8, characterized in that: The adjusting member (400) is ring-shaped.

10. A sliding shoe processing equipment, characterized in that: It comprises the sliding shoe processing tooling as described in any one of claims 1 to 9.

Images