High-pressure water multi-head spray gun easy to switch and suitable for stripping main insulation of stator bar

Abstract

The utility model relates to the technical field of spray guns, and particularly discloses an easy-to-switch high-pressure water multi-head spray gun suitable for stripping main insulation of a stator bar. Comprising a spray head with a plurality of groups of spraying runners, a spray gun rod connected with the spray head, and a switching assembly which is arranged between the spray gun rod and the spray head and is used for communicating the spray gun rod with different spraying runners. According to the utility model, communication between the different jet flow channels and the spray gun rod is realized through the switching assembly, so that high-pressure water flow can flow out from the different jet flow channels and act on main insulation of a stator bar; high-pressure water flows in different shapes are sprayed out through different selections of the spraying flow channels, the cutting / stripping efficiency is improved, the base body is protected, different spraying guns do not need to be frequently replaced in the using process, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray guns, and more specifically to an easy-to-switch high-pressure water multi-head spray gun suitable for stripping main insulation of stator wire rods. Background Art

[0002] The stator bar is the core component of the motor and is mainly composed of conductor and insulation material.

[0003] Due to the age of the motor or the influence of accidental factors in production, the wire rod insulation may fail and need to be replaced. The conductor material has high value and long service life, so it is required to be reused from both economic and technical perspectives. The premise of reuse is to strip the main insulation outside the conductor without damaging the electromagnetic wire. At present, the main insulation stripping is mainly carried out manually, which has the disadvantages of high labor intensity, low efficiency and poor working environment.

[0004] A high-pressure water pump is used to form a jet of water with a certain pressure, which acts on the main insulation, causing the latter to be cut and gradually peeled off.

[0005] In order to ensure high stripping efficiency without damaging the surface insulation of the electromagnetic wire, it is necessary to use several spray guns that can spray high-pressure water streams of different shapes; in the prior art, the spray gun can only spray one kind of water stream, and the spray gun needs to be replaced during use, which is cumbersome and reduces efficiency. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide an easy-to-switch high-pressure water multi-head spray gun suitable for stripping the main insulation of stator wire bars;

[0007] The solution adopted by the utility model to solve the technical problem is:

[0008] The invention discloses an easy-to-switch high-pressure water multi-head spray gun suitable for stripping the main insulation of stator wire rods, comprising a spray head with multiple groups of spray flow channels, a spray gun rod connected to the spray head, and a switching component arranged between the spray gun rod and the spray head and used to connect the spray gun rod with different spray flow channels.

[0009] When in use, different jet channels are connected to the spray gun rod by switching components, so that the high-pressure water flow can flow out from different jet channels and act on the main insulation of the stator bar; different choices of jet channels can spray high-pressure water flow in different shapes, improve cutting / stripping efficiency and protect the substrate, and there is no need to frequently change different spray guns during use, which greatly improves work efficiency;

[0010] In some possible implementations, in order to effectively achieve the communication between different injection channels and the spray gun rod through the switching assembly;

[0011] The switching assembly includes a valve body for connecting the spray gun rod and the spray head, a ball installed in the valve body and provided with a connecting flow channel, and a driving member for controlling the rotation of the ball and connecting the spray gun rod with different injection flow channels through a connecting pipe; the driving member is arranged on the outside of the valve body.

[0012] In some possible implementations, in order to effectively realize the installation of the ball and the connection between the valve body and the spray gun rod and the spray head;

[0013] The valve body is provided with a mounting groove, and the ball is rotatably mounted in the mounting groove; an inlet connected to an end of the connecting flow channel close to the spray gun rod is provided at one end of the valve body close to the spray gun rod, and an outlet connected to the connecting flow channel is provided at one end of the valve body away from the spray gun rod.

[0014] In some possible implementations, in order to effectively improve the sealing performance between the ball and the valve body;

[0015] A rubber layer is arranged on the outer side of the sphere, and a hydrophobic layer is arranged on the outer side of the rubber layer.

[0016] In some possible implementations, in order to effectively realize that both the injection flow channel and the connection flow channel can be connected as needed during use;

[0017] One end of the nozzle close to the valve body is installed in the outlet, and the inlet of each group of the injection flow channels is located in the outlet;

[0018] When in use, the ball is controlled to rotate so that the outlet end of the connecting flow channel is connected with the inlet of different injection flow channels.

[0019] In some possible implementations, in order to make the shapes of the high-pressure water flows sprayed by each group of jet flow channels different, so as to meet the needs for stripping of the main insulation, the stripping efficiency is high and the surface insulation of the electromagnetic wire is not damaged;

[0020] The cross-sectional structural shapes of the multiple groups of injection flow channels are different; each group of the injection flow channels includes an input section connected to the connecting flow channel and an output section connected to the input section away from one end of the valve body.

[0021] In some possible implementations, in order to improve working efficiency, the high-pressure water flow is made to flow more smoothly in the jet flow channel;

[0022] The axis of the input section, the axis of the output section, the axis of the spray gun rod, and the axis of the connecting flow channel are on the same plane.

[0023] In some possible implementations, in order to reduce the pressure loss of the high-pressure water flow;

[0024] The axis of the input section is parallel to the axis of the spray gun rod, and the angle formed by the axis of the output section and the axis of the input section is A, 45°≥A≥15°.

[0025] In some possible implementations, in order to effectively drive the ball to rotate through the driving member;

[0026] The driving member includes a rotating shaft with one end passing through the valve body and connected to the sphere, a driven wheel coaxially arranged with the rotating shaft and installed on the outside of the valve body, a driving wheel installed on the spray gun rod and corresponding to the driving wheel, a synchronous belt coordinated with the driving wheel and the driven wheel, and a handle for controlling the driving wheel to rotate around its axis; the axis of the rotating shaft is in the same straight line with the center of the sphere.

[0027] In some possible implementations,

[0028] It also includes a water delivery pipe connected with the spray gun rod and a main valve installed on the spray gun rod.

[0029] Compared with the prior art, the utility model has the following beneficial effects:

[0030] The utility model realizes the connection between different jet flow channels and the spray gun rod by switching components, so that the high-pressure water flow can flow out from different jet flow channels and act on the main insulation of the stator wire rod; different choices of the jet flow channels can spray high-pressure water flow in different shapes, improve the cutting / stripping efficiency and protect the substrate, and do not need to frequently change different spray guns during use, which greatly improves the work efficiency;

[0031] The utility model adopts synchronous belt drive to drive the ball to rotate, and its rotation ratio is accurate, which can effectively control the flow of high-pressure water flow and has good rust and corrosion resistance.

[0032] The utility model has a simple structure and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0034] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0035] Figure 3 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0036] Figure 4 It is a schematic diagram of the connection relationship between the injection flow channel, the connecting flow channel and the spray gun rod in the utility model;

[0037] Figure 5 This is a schematic diagram of the connection relationship between the driven wheel, the rotating shaft and the valve body in the utility model;

[0038] Among them: 1. spray gun rod; 2. nozzle; 21. injection flow channel; 211. input section; 212. output section; 3. switching component; 31. valve body; 32. ball; 321. connecting flow channel; 33. driving part; 331. driving wheel; 332. driven wheel; 333. synchronous belt. DETAILED DESCRIPTION

[0039] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. The "first", "second" and similar words mentioned in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "one" and other similar words do not indicate a quantity limit, but indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can indicate: A exists alone, A and B exist at the same time, and B exists alone. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more. For example, multiple positioning columns refer to two or more positioning columns. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0040] The utility model is described in detail below.

[0041] like Figure 1-Figure 5 As shown;

[0042] A multi-head high-pressure water spray gun suitable for stripping the main insulation of stator wire rods includes a spray head 2 with multiple groups of spray channels 21, a spray gun rod 1 connected to the spray head 2, and a switching component 3 arranged between the spray gun rod 1 and the spray head 2 and used to connect the spray gun rod 1 with different spray channels 21.

[0043] like Figure 1 As shown, when in use, different jet channels 21 are connected to the spray gun rod 1 through the switching component 3, so that the high-pressure water flow can flow out from different jet channels 21 and act on the main insulation of the stator bar; different choices of the jet channels 21 can spray high-pressure water flows of different shapes, improve the cutting / stripping efficiency and protect the substrate, and there is no need to frequently change different spray guns during use, which greatly improves the work efficiency;

[0044] In some possible implementations, in order to effectively achieve the communication between different injection channels 21 and the spray gun rod 1 through the switching assembly 3;

[0045] like Figure 1-Figure 3 As shown, the switching assembly 3 includes a valve body 31 for connecting the spray gun rod 1 and the spray head 2, a ball 32 installed in the valve body 31 and provided with a connecting flow channel 321, and a driving member 33 for controlling the rotation of the ball 32 and connecting the spray gun rod 1 with different injection flow channels 21 through a connecting pipe; the driving member 33 is arranged on the outside of the valve body 31;

[0046] The valve body 31 connects the nozzle 2 and the spray gun rod 1, and the ball 32 is rotatably installed in the valve body 31. Through the connecting flow channel 321 set inside the ball 32 and the rotation, the high-pressure water flow can enter from the spray gun rod 1 into a certain group of injection flow channels 21 set in the nozzle 2, and then spray out; different choices of the injection flow channels 21 make the shapes of the high-pressure water flow sprayed from the nozzle 2 different, so that a group of spray gun rods 1 and multiple groups of injection flow channels 21 can be used to spray water flows of different shapes. When in use, it is only necessary to control the rotation of the ball 32 to achieve this. Compared with switching different spray guns to spray high-pressure water flows of different shapes, the utility model will greatly improve the work efficiency during the main insulation stripping;

[0047] In some possible implementations, in order to effectively realize the installation of the ball 32 and the connection between the valve body 31 and the spray gun rod 1 and the spray head 2;

[0048] The valve body 31 is provided with a mounting groove, and the ball 32 is rotatably mounted in the mounting groove; an inlet connected to an end of the connecting flow channel 321 close to the spray gun rod 1 is provided at one end of the valve body 31 close to the spray gun rod 1, and an outlet connected to the connecting flow channel 321 is provided at one end of the valve body 31 away from the spray gun rod 1;

[0049] Furthermore, the mounting groove is a spherical structure and is adapted to the shape of the ball 32. The inlet and the outlet are connected to the mounting groove. A sealing ring is provided on one side of the inlet and the outlet close to the ball 32, thereby preventing high-pressure water from entering between the ball 32 and the mounting groove, and achieving effective sealing.

[0050] Furthermore, the axes of the inlet and the outlet are arranged along the radial direction of the sphere 32 and are on the same straight line;

[0051] In some possible implementations, in order to effectively improve the sealing performance between the ball 32 and the valve body 31;

[0052] A rubber layer is arranged on the outer side of the sphere 32, and a hydrophobic layer is arranged on the outer side of the rubber layer;

[0053] The rubber layer provides good sealing performance between the ball 32 and the valve body 31. In order to further improve the sealing performance of the hard rubber to water, a hydrophobic layer is provided on the outer side of the rubber layer.

[0054] In some possible implementations, in order to effectively realize that the injection channel 21 and the connection channel 321 can be connected as needed during use;

[0055] like Figure 4 As shown, the end of the nozzle 2 close to the valve body 31 is installed in the outlet, and the inlet of each group of the injection flow channels 21 is located in the outlet, and can be connected with the connecting flow channel 321 according to the use needs;

[0056] When in use, the ball 32 rotates under the control of the driving member 33 and communicates with the required injection flow channel 21. The high-pressure water flow delivered to the spray gun rod 1 enters the connecting flow channel 321 after passing through the inlet. Since the outlet of the connecting flow channel 321 can be connected with the inlet of different injection flow channels 21, the high-pressure water flow can pass through the connecting flow channel 321, enter the injection flow channel 21 connected with the connecting flow channel 321, and be sprayed out through the injection flow channel 21.

[0057] In some possible implementations, in order to make the shapes of the high-pressure water flows sprayed by each group of jet flow channels 21 different, so as to meet the needs of main insulation stripping, the stripping efficiency is high and the surface insulation of the electromagnetic wire is not damaged;

[0058] The cross-sectional structural shapes of the multiple groups of injection channels 21 are different; each group of the injection channels 21 includes an input section 211 connected to the connecting channel 321 and an output section 212 connected to an end of the input section 211 away from the valve body 31; the multiple groups of injection channels 21 are arranged at intervals and do not interfere with each other.

[0059] The cross-sectional structural shapes of the jet flow channels 21 are different, so that the shapes of the high-pressure water flows ejected from each group of jet flow channels 21 are different, thereby meeting the needs of using high-pressure water flows of different shapes for main insulation stripping, so that the stripping efficiency is high and the surface insulation of the electromagnetic wire is not damaged;

[0060] In some possible implementations, in order to improve working efficiency, the high-pressure water flow is made to flow more smoothly in the jet flow channel 21;

[0061] like Figure 4 As shown, the axis of the input section 211, the axis of the output section 212, the axis of the spray gun rod 1, and the axis of the connecting flow channel 321 are on the same plane; the high-pressure water flow does not need to turn during the flow of each group of injection flow channels 21, and the flow is smoother;

[0062] In some possible implementations, in order to reduce the pressure loss of the high-pressure water flow;

[0063] The axis of the input section 211 is parallel to the axis of the spray gun rod 1, and the angle formed by the axis of the output section 212 and the axis of the input section 211 is A, 45°≥A≥15°;

[0064] In some possible implementations, in order to effectively drive the ball 32 to rotate through the driving member 33;

[0065] like Figure 5 As shown, the driving member 33 includes a rotating shaft 34 with one end passing through the valve body 31 and connected to the ball 32, a driven wheel 332 coaxially arranged with the rotating shaft 34 and installed on the outside of the valve body 31, a driving wheel 331 installed on the spray gun rod 1 and corresponding to the driving wheel 331, a synchronous belt 333 drivingly matched with the driving wheel 331 and the driven wheel 332, and a handle for controlling the driving wheel 331 to rotate around its axis; the axis of the rotating shaft 34 and the center of the ball 32 are in the same straight line;

[0066] Furthermore, the rotating shaft 34 and the valve body 31 are rotationally matched and the outer side of the rotating shaft 34 and the valve body 31 are sealed. The valve body 31 is provided with a through hole, and the axis of the through hole is in the same straight line with the center of the sphere 32;

[0067] In some possible implementations,

[0068] It also includes a water delivery pipe connected to the spray gun rod 1 and a main valve installed on the spray gun rod 1.

[0069] The water supply pipe is a hose connected to the spray gun rod 1. When the main valve is opened, the high-pressure water flow in the water supply pipe will enter the spray gun rod 1, flow along the spray gun rod 1, and then enter the injection channel 21 connected to the connecting channel 321 through the connecting channel 321, and be sprayed out through the injection channel 21.

[0070] Specifically, in the utility model, the axial direction of the spray gun rod 1 is set along the X-axis direction, and the rotating shaft 34 is set along the Z-axis direction; the axes of the inlet and outlet in the valve body 31 are on the same straight line and are set along the X-axis direction, and the axis of the inlet is coaxial with the axis of the spray gun rod 1; the center of the sphere 32 and the axis of the rotating shaft 34 are on the same straight line, and the driven wheel 332 is coaxially set with the rotating shaft 34. The driving wheel 331 will rotate around the Z-axis direction. Under the action of the synchronous belt 333, the driven wheel 332 will rotate around the Z-axis direction, thereby causing the sphere 32 to rotate around the Z-axis direction, driving the connecting channel 321 to rotate, so that the connecting channel 321 is connected with different injection channels 21.

[0071] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. An easy-to-switch high-pressure water multi-head spray gun suitable for stripping the main insulation of stator bars, characterized in that: The invention comprises a nozzle with multiple groups of spray flow channels, a spray gun rod connected with the nozzle, and a switching component arranged between the spray gun rod and the nozzle and used for connecting the spray gun rod with different spray flow channels.

2. The easy-to-switch high-pressure water multi-head spray gun suitable for stripping the main insulation of stator bars according to claim 1, characterized in that: The switching assembly includes a valve body for connecting the spray gun rod and the spray head, a ball installed in the valve body and provided with a connecting flow channel, and a driving member for controlling the rotation of the ball and connecting the spray gun rod with different injection flow channels through a connecting pipe; the driving member is arranged on the outside of the valve body.

3. The easy-to-switch high-pressure water multi-head spray gun suitable for stripping the main insulation of stator bars according to claim 2, characterized in that: The valve body is provided with a mounting groove, and the ball is rotatably mounted in the mounting groove; an inlet connected to an end of the connecting flow channel close to the spray gun rod is provided at one end of the valve body close to the spray gun rod, and an outlet connected to the connecting flow channel is provided at one end of the valve body away from the spray gun rod.

4. The easy-to-switch high-pressure water multi-head spray gun suitable for stripping the main insulation of stator bars according to claim 2, characterized in that: A rubber layer is arranged on the outer side of the sphere, and a hydrophobic layer is arranged on the outer side of the rubber layer.

5. The easy-to-switch high-pressure water multi-head spray gun suitable for stripping the main insulation of stator bars according to claim 3, characterized in that: One end of the nozzle close to the valve body is installed in the outlet, and the inlet of each group of the injection flow channels is located in the outlet; When in use, the ball is controlled to rotate so that the outlet end of the connecting flow channel is connected with the inlet of different injection flow channels.

6. The easy-to-switch high-pressure water multi-head spray gun suitable for stripping the main insulation of stator bars according to claim 1, characterized in that: The cross-sectional structural shapes of the multiple groups of injection flow channels are different; each group of the injection flow channels includes an input section connected to the connecting flow channel and an output section connected to the input section away from one end of the valve body.

7. The easy-to-switch high-pressure water multi-head spray gun suitable for stripping the main insulation of stator bars according to claim 6, characterized in that: The axis of the input section, the axis of the output section, the axis of the spray gun rod, and the axis of the connecting flow channel are on the same plane.

8. The easy-to-switch high-pressure water multi-head spray gun suitable for stripping the main insulation of stator bars according to claim 7, characterized in that: The axis of the input section is parallel to the axis of the spray gun rod, and the angle formed by the axis of the output section and the axis of the input section is A, 45°≥A≥15°.

9. The easy-to-switch high-pressure water multi-head spray gun suitable for stripping the main insulation of stator bars according to claim 2, characterized in that: The driving member includes a rotating shaft with one end passing through the valve body and connected to the ball, a driven wheel coaxially arranged with the rotating shaft and installed on the outside of the valve body, a driving wheel installed on the spray gun rod and arranged corresponding to the driving wheel, a synchronous belt coordinated with the driving wheel and the driven wheel, and a handle for controlling the driving wheel to rotate around its axis.

10. An easily switchable high-pressure water multi-head spray gun suitable for stripping the main insulation of stator bars according to any one of claims 1 to 9, characterized in that: It also includes a water delivery pipe connected with the spray gun rod and a main valve installed on the spray gun rod.

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