A tool for detecting the guide ribs of a wedge-type gate valve body

Abstract

The present invention belongs to the field of mechanical component processing and inspection, and is mainly used in the field of inspection of wedge-type gate valve body guide ribs, and specifically relates to a tool for inspecting wedge-type gate valve body guide ribs. A tool for inspecting wedge-type gate valve body guide ribs, comprising a connecting rod, an inspection sample block, a measuring rod, and a measuring adjustment joint; wherein a inspection sample block is provided at each end of the connecting rod, a measuring rod is provided in the middle of the connecting rod, and a measuring adjustment joint is provided at each end of the measuring rod. The beneficial effect of the present invention is that the inspection tool can well inspect the external dimensions of the wedge-type gate valve body guide ribs, the symmetry of the guide ribs on both sides, and the deflection of the guide ribs on both sides. The design is reasonable, greatly improving the convenience of inspection, effectively controlling the process quality, and improving work efficiency.

Description

Technical Field

[0001] The invention belongs to the field of mechanical component processing and detection, is mainly used in the field of detection of guide ribs of a wedge-type gate valve body, and specifically relates to a tool for detecting the guide ribs of a wedge-type gate valve body. Background Art

[0002] The guide ribs of a wedge-type gate valve body are extremely important for both valve body machining and valve assembly. During valve body machining, the guide ribs serve as a symmetrical reference for the final finishing of the sealing surfaces on both sides of the valve body. During assembly, the guide ribs not only guide the gate but also provide a certain limit to the gate. The external dimensions, symmetry, and skewness of the guide ribs are all crucial. However, the guide ribs of a wedge-type gate valve body are generally cast surfaces. Due to machining costs, most guide ribs are not machined, and there is a lack of effective testing methods for the quality of the guide ribs. Therefore, quality problems with the guide ribs are often encountered during the valve body machining process and valve assembly. These quality problems have a certain impact on the smooth operation of the production process. The design of the new guide rib detection tool can detect the external dimensions, symmetry, and skewness of the guide ribs before valve body machining, thereby detecting problems in advance. It can also serve as a means of testing the quality of the guide ribs of valve body blanks in foundries. Summary of the Invention

[0003] In response to the above problems, the present invention provides a tool for detecting the guide ribs of a wedge-type gate valve body, which can effectively detect the external dimensions, symmetry and deflection of the guide ribs of a wedge-type gate valve body.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is: a tool for detecting the guide ribs of the valve body of a wedge-type gate valve, which includes a connecting rod, a detection sample block, a measuring rod and a measuring and adjusting joint; wherein a detection sample block is provided at each end of the connecting rod, a measuring rod is provided in the middle of the connecting rod, and a measuring and adjusting joint is provided at each end of the measuring rod.

[0005] As described above, a tool for detecting the guide ribs of the valve body of a wedge-type gate valve is provided, wherein two bolt holes for connecting to the detection sample block are respectively provided at both ends of the connecting rod, an L-shaped square groove is provided at the center position of the connecting rod, and center identification scale lines are engraved on both side surfaces of the center of the connecting rod.

[0006] As described above, in the tool for detecting the guide ribs of the valve body of a wedge-type gate valve, the L-shaped square groove is located approximately 30 mm off-center.

[0007] As described above, a tool for inspecting the guide ribs of a wedge-type gate valve body is provided, wherein the inspection sample block is provided with a square groove at each end, and two bolt holes and two pin holes are provided on the side of the small end; the square groove at the large end cooperates with the guide ribs of the valve body when used; the square groove at the small end is used to assemble with the end of the connecting rod; the two bolt holes on the side of the small end are used to assemble fixing bolts, and the two pin holes are used to assemble fixing pins.

[0008] As described above, a tool for detecting the guide ribs of a wedge-type gate valve body, wherein each end of the measuring rod has a thread, a size scale line is engraved on the outer circle of the thread, and a flat section is opened at the center of the measuring rod.

[0009] As described above, a tool for detecting the guide ribs of a wedge-type gate valve body, wherein the center end of one end of the adjustable measuring joint has a light hole, the light hole has a blind threaded hole inside, and the other end is a spherical surface.

[0010] In the tool for detecting the guide ribs of a wedge-type gate valve body as described above, a fixing pin hole is further provided next to the bolt hole on the connecting rod.

[0011] As described above, a tool for detecting the guide ribs of a wedge-type gate valve body, wherein the end of the detection sample block is a special-shaped part, and the shape of the part is two back-to-back "concave" shapes, the two "concave" shapes are respectively a square groove for detecting the outer shape of the guide rib and a square groove for connecting the connecting rod, wherein the square groove for detecting the outer shape of the guide rib matches the shape of the reference valve body guide rib, and the connecting rod connection matching square groove matches the shape of the connecting rod.

[0012] The beneficial effect of the present invention is that the detection tool can well detect the external dimensions of the guide ribs of the wedge gate valve body, the symmetry of the guide ribs on both sides, and the deflection of the guide ribs on both sides. The design is reasonable, which greatly improves the convenience of detection, effectively controls the process quality, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a tool for detecting the guide ribs of a wedge-type gate valve body according to the present invention;

[0014] Figure 2 Use a top-down schematic diagram for the inspection tool;

[0015] Figure 3 Schematic diagram of the connecting rod structure;

[0016] Figure 4 This is the structural diagram of the test sample;

[0017] Figure 5 This is the structural diagram of the measuring rod;

[0018] Figure 6 This is the structural diagram of the measurement and adjustment joint.

[0019] Explanation of the reference numerals in the accompanying drawings: 1-connecting rod; 2-test sample block; 3-measuring rod; 4-measuring and adjusting joint; 5-connecting bolt; 6-nut; 7-locating pin; 21-reference valve body center flange; 22-reference valve body guide rib; 31-test sample block connection matching surface; 32-connecting bolt hole; 33-L-shaped groove for measuring rod assembly; 41-square groove for detecting guide rib shape; 42-connecting rod connection matching square groove; 43-connecting bolt hole; 44-fixing pin hole; 51-measuring rod end thread; 52-scale mark; 53-measuring rod outer circle surface; 54-connecting rod matching flatness; 55-measuring rod limiting shoulder; 61-measuring and adjusting joint end face light hole; 62-measuring rod connecting thread; 63-measuring and adjusting joint end face spherical surface. DETAILED DESCRIPTION

[0020] The present invention provides a tool for detecting the guide ribs of a wedge-type gate valve body. Figure 1 As shown, it includes a connecting rod 1, a test sample 2, a measuring rod 3, a measuring adjustment joint 4, a connecting bolt 5, a nut 6, and a positioning pin 7. The connecting rod 1 is assembled and connected to the test sample 2 via the connecting bolt 5. After the positioning pin holes are drilled, the positioning pin 7 is used to fix the connection, thereby preventing the test sample from loosening during use and affecting the detection accuracy.

[0021] Specifically, it includes a connecting rod, a detection sample block, a measuring rod and a measuring and adjusting joint; two bolt holes for connecting to the detection sample block are respectively provided at both ends of the connecting rod, an L-shaped square groove is provided at a position about 30mm off-center of the connecting rod, and center identification scale lines are engraved on both sides of the center of the connecting rod; a square groove is provided at each end of the large and small ends of the detection sample block, and two bolt holes and two pin holes are provided on the side of the small end; the large end square groove cooperates with the valve body guide rib when in use; the small end square groove is used to match the end of the connecting rod; the two bolt holes on the side of the small end are used to assemble fixing bolts, and the two pin holes are used to assemble fixing pins; each end of the measuring rod has a section of thread, and a size scale line is engraved on the outer circle of the thread, and a flat section is provided in the center of the measuring rod; the center end of one end of the measuring and adjusting joint has a light hole, a blind threaded hole inside the light hole, and the other end is a spherical surface.

[0022] The present invention is mainly divided into two processes. First, the assembled connecting rod 1 and the test sample 2 are used to slide the guide rib up and down to test the guide rib's external dimensions and the symmetry of the guide ribs on both sides. Then, the measuring rod 3 and the measuring adjustment joint 4 are assembled. Figure 5 Assemble the outer cylindrical surface 53 of the measuring rod in the connecting rod 1 into the L-shaped groove for assembling the measuring rod. Finally, ensure that the connecting rod on the measuring rod 3 is fitted with the flattened portion 54 and the transverse groove in the L-shaped groove for assembling the measuring rod on the connecting rod 1 to the left end of the groove. Finally, press Figure 2The guide rib is tested by the schematic method. During the test, the measuring adjustment joint 4 can be adjusted respectively. At the same time, the deflection of the guide rib can be tested by observing the scale mark 52 corresponding to the end face of the measuring adjustment joint 4 on the measuring rod 3.

Claims

1. A tool for detecting the guide ribs of a wedge-type gate valve body, characterized by: It comprises a connecting rod (1), a detection sample block (2), a measuring rod (3) and a measuring adjustment joint (4); wherein a detection sample block (2) is provided at each end of the connecting rod (1), a measuring rod (3) is provided in the middle of the connecting rod (1), and a measuring adjustment joint (4) is provided at each end of the measuring rod (3); Two bolt holes for connecting with the test sample block (2) are respectively provided at both ends of the connecting rod (1), an L-shaped square groove is provided at the center of the connecting rod (1), and center marking scale lines are engraved on both sides of the center of the connecting rod (1); The L-shaped square groove is located about 30 mm off-center. The test sample block (2) is provided with a square groove at each of the large and small ends, and two bolt holes and two pin holes are respectively provided on the side of the small end; the square groove at the large end is matched with the guide rib of the valve body when in use; the square groove at the small end is used to be matched with the end of the connecting rod (1); the two bolt holes on the side of the small end are used to assemble the fixing bolts, and the two pin holes are used to assemble the fixing pins; The two ends of the measuring rod (3) are each provided with a thread, a size scale line is engraved on the outer circle of the thread, and a flat section is opened at the center of the measuring rod (3); The measuring and adjusting joint has a central end with a light hole at one end, a blind threaded hole inside the light hole, and the other end is a spherical surface; A fixing pin hole (44) is also provided next to the bolt hole on the connecting rod (1); The end of the detection sample block (2) is a special-shaped part, which is shaped like two back-to-back "concave" shapes, and the two "concave" shapes are respectively a square groove (41) for detecting the outer shape of the guide rib and a connecting rod connecting matching square groove (42), wherein the square groove (41) for detecting the outer shape of the guide rib matches the shape of the reference valve body guide rib (22), and the connecting rod connecting matching square groove (42) matches the shape of the connecting rod (1).

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