Electric grinding device for low bypass valve seat

Abstract

The utility model discloses an electric grinding device for a low side valve seat, which relates to the technical field of grinding devices and is characterized by comprising an electric driving mechanism and a grinding rod mounted on an output shaft of the electric driving mechanism, and a grinding disc for grinding is arranged at one end, far away from the electric driving mechanism, of the grinding rod; the grinding rod is further provided with a positioning disc matched with a valve seat opening in a buckled mode, and the positioning disc is provided with a limiting sleeve allowing the grinding rod to penetrate through and slide. According to the utility model, the positioning disc which can be buckled with the valve seat opening is arranged on the grinding rod, and meanwhile, the limiting sleeve which is sleeved with the grinding rod is arranged on the positioning disc, so that the positioning disc can be buckled on the valve seat opening for positioning during grinding, and the limiting sleeve in the center of the positioning disc is used for limiting the grinding rod; the grinding disc can be matched with the positioning disc to ensure that the grinding rod is aligned with the central axis of the valve seat when the grinding disc is aligned with the valve seat sealing opening, and the grinding accuracy is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding devices, specifically to a low-side valve seat electric grinding device. Background Technology

[0002] A bypass valve is a type of valve used to control fluid flow. It is commonly used in thermal or air conditioning systems. Its main function is to provide an additional path for some fluid to pass through when the flow in the main channel decreases, in order to maintain stable system operation and prevent equipment damage. After a certain period of use, the sealing port of the bypass valve will be eroded and deformed, resulting in a decrease in sealing effect and the onset of internal leakage. At this time, it is necessary to open the valve seat and grind and correct the internal sealing position. In the past, manual grinding was conventionally used, but to improve efficiency, electric grinding equipment is now used. However, because electric grinding is extremely fast, once the operation starts, it is impossible to make fine adjustments to the grinding angle. At the same time, in conventional electric units, the bypass valve is set at a 45° angle to the ground. In this case, the alignment of the angle is even more important. Otherwise, grinding misalignment is likely to occur, resulting in greater deformation of the valve seat sealing port.

[0003] In view of this, a design or technical improvement is proposed to solve the above problems.

[0004] The above content is only used to help understand the technical solution of this utility model and does not represent an admission that the above content is the closest prior art. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings and provide a low-profile electric grinding device for bypass valve seats.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] The low-pressure bypass valve seat electric grinding device includes an electric drive mechanism and a grinding rod mounted on the output shaft of the electric drive mechanism. A grinding disc for grinding is provided at the end of the grinding rod away from the electric drive mechanism. The grinding rod is also provided with a positioning disc that is adapted to fit the valve seat port and has a cover. A limiting sleeve for the grinding rod to slide through is provided on the positioning disc.

[0008] Furthermore, a locking plate is fixedly installed on the positioning plate, and the locking plate has a locking groove that engages with the bolt rod on the outer edge of the valve seat.

[0009] Furthermore, an adjustment component is provided between the electric drive mechanism and the positioning disk to adjust the relative position between the two.

[0010] Furthermore, the adjustment assembly includes a fixed seat fixedly mounted on the positioning plate, an adjustment plate with a bearing connected inside the fixed seat, and a movable base sleeve fixedly mounted on the electric drive mechanism and connected to the grinding rod bearing; the movable base sleeve passes through the interior of the adjustment plate, and the two are provided with mutually cooperating threads.

[0011] Furthermore, the fixed base has through holes for the movable base sleeve to pass through, key plates are evenly distributed on the inner wall of the through holes, and keyways that engage with the key plates are evenly distributed on the outer surface of the movable base sleeve.

[0012] Furthermore, observation holes are evenly distributed on both the grinding disc and the positioning disc.

[0013] Compared with the prior art, the beneficial effects of this solution are as follows: This utility model sets a positioning plate on the grinding rod that can be fastened to the valve seat opening, and sets a limiting sleeve on the positioning plate to fit the grinding rod. This allows the positioning plate to be fastened to the valve seat opening for positioning during grinding, and the limiting sleeve in the center of the positioning plate to limit the grinding rod. This ensures that when the grinding plate is aligned with the valve seat sealing opening, it can work with the positioning plate to ensure that the grinding rod and the valve seat central axis are aligned, thus ensuring the grinding accuracy. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0015] Figure 1 This is a frontal perspective view of an embodiment of the present utility model;

[0016] Figure 2 This is a bottom-view perspective view of an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the grinding process in an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the positioning disk in an embodiment of the present utility model;

[0019] Figure 5 This is a disassembly diagram of the first slider and the bracket in an embodiment of the present utility model;

[0020] Figure 6 This is a disassembly diagram of the stabilizing plate and the supporting rail plate in an embodiment of this utility model.

[0021] In the figure: 1. Electric drive mechanism; 2. Grinding rod; 21. Grinding disc; 22. Positioning disc; 23. Limiting sleeve; 3. Locking plate; 31. Locking slot; 4. Fixed base; 41. Adjusting disc; 42. Movable base sleeve; 5. Through hole; 51. Key plate; 52. Keyway; 6. Observation hole. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] like Figure 1-6 The electric grinding device for the low-pressure valve seat shown includes an electric drive mechanism 1 and a grinding rod 2 mounted on the output shaft of the electric drive mechanism 1. A grinding disc 21 for grinding is provided at the end of the grinding rod 2 furthest from the electric drive mechanism 1. A positioning disc 22, adapted to fit the valve seat opening, is also provided on the grinding rod 2. A limiting sleeve 23 is provided on the positioning disc 22 for the grinding rod 2 to slide through. During use, the device is positioned at the valve seat opening by the positioning disc 22, while the grinding rod 2 slides within the limiting sleeve 23 located in the center of the positioning disc 22. This pushes the grinding disc 21 forward until it abuts against the sealing port inside the valve seat, driving the grinding disc 21 to rotate at high speed for grinding. Because the grinding disc 21 engages with the sealing port, and the rear positioning disc 22 engages with the valve seat opening, positioning is achieved through this two-point engagement, ensuring that the grinding rod 2 is completely positioned at the center axis of the valve seat, thus guaranteeing grinding accuracy.

[0024] In one embodiment, a locking plate 3 is fixedly provided on the positioning plate 22, and a locking slot 31 is provided on the locking plate 3. An adjustment component is also provided between the electric drive mechanism 1 and the positioning plate 22 to adjust the relative position between the two. The positioning plate 22 can be firmly positioned by locking the locking slot 31 with the outer edge bolt rod of the valve seat, so that it will not rotate circumferentially during grinding. Thus, when the adjustment component is adjusted, the positioning plate 22 can become a relatively fixed reference seat.

[0025] In one embodiment, the adjustment assembly includes a fixed base 4 fixedly mounted on the positioning plate 22, an adjustment plate 41 with a bearing connected to the fixed base 4, and a movable base sleeve 42 fixedly mounted on the electric drive mechanism 1 and connected to the grinding rod 2 with a bearing. The movable base sleeve 42 passes through the interior of the adjustment plate 41, and the two are provided with mutually mating threads. The movable base sleeve 42 is fixed to the grinding rod 2 by an interference fit through the internal bearing, so that the grinding rod 2 can move up and down synchronously with the movable base sleeve 42, and can rotate freely relative to the movable base sleeve 42. When the positioning plate 22 is positioned with the valve seat cover, the grinding rod 2 can then... The grinding rod 2 slides freely within the limiting sleeve 23, and then initially slides by pushing the grinding rod 2, causing the grinding disc 21 at its front end to slide to the limit position. At this time, the threads on the movable base sleeve 42 and the adjusting disc 41 are in contact. Then, the adjusting disc 41 is rotated to make it threadedly connected with the movable base sleeve 42, and at the same time, the movable base sleeve 42 is driven to extend forward synchronously, thereby forming a relatively fixed relationship between the movable base sleeve 42 and the positioning disc 22. At this time, the grinding rod 2 can no longer slide within the limiting sleeve 23. Then, the movable base sleeve 42 is rotated until the front grinding disc 21 is pressed against the sealing port, ensuring high stability during grinding.

[0026] In one embodiment, the fixed base 4 has a through hole 5 for the movable base sleeve 42 to pass through. Key plates 51 are evenly distributed on the inner wall of the through hole 5, and key grooves 52 that engage with the key plates 51 are evenly distributed on the outer surface of the movable base sleeve 42. By setting the key plates 51 and key grooves 52, when the movable base sleeve 42 is moved by rotating the adjusting disk 41, it will not rotate synchronously, thus ensuring the stability of its forward extension.

[0027] In one embodiment, observation holes 6 are evenly distributed on the grinding disc 21 and the positioning disc 22, so that the operator can observe the grinding condition inside the valve seat through the observation holes 6.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A low-side valve seat electric grinding device, comprising an electric driving mechanism (1), characterized in that: It also comprises a grinding rod (2) installed on the output shaft of the electric driving mechanism (1), and the end of the grinding rod (2) away from the electric driving mechanism (1) is provided with a grinding disc (21) for grinding; Wherein the grinding rod (2) is also provided with a positioning disc (22) matched with the cover of the valve seat port, and the positioning disc (22) is provided with a limiting sleeve (23) for sliding connection of the grinding rod (2).

2. The low-side valve seat electric lapping apparatus of claim 1, wherein: The positioning disc (22) is fixedly provided with a clamping plate (3), and the clamping plate (3) is provided with a clamping groove (31) for bolt rod clamping of the outer edge of the valve seat port.

3. The low-side valve seat electric lapping apparatus according to claim 1 or 2, characterized by: The electric driving mechanism (1) and the positioning disc (22) are also provided with an adjusting assembly for adjusting the relative position therebetween.

4. The low-side valve seat electric lapping apparatus of claim 3, wherein: The adjusting assembly comprises a fixed seat (4) fixedly arranged on the positioning disc (22), an adjusting disc (41) bearing connected in the fixed seat (4), and a movable base sleeve (42) fixedly arranged on the electric driving mechanism (1) and bearing connected with the grinding rod (2); The movable base sleeve (42) is connected in the inside of the adjusting disc (41), and a thread matched therebetween is arranged therebetween.

5. The low-side valve seat electric lapping apparatus of claim 4, wherein: The fixed seat (4) is provided with a through hole (5) for connecting the movable base sleeve (42), and the inner wall of the through hole (5) is uniformly provided with a key plate (51), and the outer surface of the movable base sleeve (42) is uniformly provided with a key groove (52) matched with the key plate (51).

6. The low-side valve seat electric lapping apparatus of claim 1, wherein: The grinding disc (21) and the positioning disc (22) are uniformly provided with observation holes (6).

Images