Glue injection device for generator

Abstract

The utility model discloses a glue injection device for a generator, which relates to the technical field of glue injection for generators, and is characterized in that two second hydraulic pipes are arranged, the second hydraulic pipe on one side pushes a piston to move when glue is discharged, and the second hydraulic pipe on the other side pushes the piston to move when glue is discharged. Therefore, quantitative glue discharging can be achieved during glue discharging, waste of a large amount of glue is avoided, glue discharging of the second hydraulic pipe on the other side also completes filling of the glue and preparation of next quantitative glue discharging, continuity of quantitative glue discharging is achieved, and the next quantitative glue discharging does not need to wait.

Description

Technical Field

[0001] The utility model relates to the technical field of generator glue injection, in particular to a generator glue injection device. Background Art

[0002] The amount of hydrogen leakage gradually increases during the daily operation of the unit. This situation is mostly related to leakage of water, oil pipelines, flange surfaces, sealing tiles, end covers, etc. that are in indirect or direct contact with hydrogen. In particular, the end cover and half surface of the generator body are prone to hydrogen leakage. During the operation of the unit, the hydrogen leakage at the generator end cover is generally blocked by glue injection, and the glue is injected through the glue injection holes on the end cover to achieve a sealing effect.

[0003] Regarding the modification of the glue injection gun structure, relevant technical solutions have been disclosed, such as patent application number: 2017208505126, application date July 14, 2017, invention name: a special tool for glue injection for generator, patent application number: CN201920190475.X, application date February 11, 2019, invention name: a glue injection device for generator. The disadvantage is that the above applications cannot quantitatively dispense glue. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model proposes a generator glue injection device.

[0005] The utility model provides a generator glue injection device, comprising a hydraulic pump and a glue injection pipe, wherein the glue injection pipe is connected to the hydraulic pump through a connecting mechanism, a piston is slidably connected inside the glue injection pipe, and the glue injection pipe is connected to two flow rate adjustable glue delivery mechanisms, and the flow rate adjustable glue delivery mechanisms are connected to a glue injection gun nozzle.

[0006] Preferably, the flow rate adjustable glue discharge mechanism includes a fixed cylinder, and the fixed cylinder is connected with the glue injection tube, an external thread is provided on the fixed cylinder, and a movable cylinder is sleeved on the fixed cylinder, an internal thread is provided on the inner wall of the movable cylinder, and the fixed cylinder and the movable cylinder are threadedly connected, and the inner cavity of the fixed cylinder is a truncated cone-shaped cavity, a flow rate adjusting ball is provided in the movable cylinder, and a connecting rod is installed on the flow rate adjusting ball, fixed rods are installed on both sides of the connecting rod, and one end of the fixed rod away from the connecting rod is connected to the inner wall of the movable cylinder.

[0007] Preferably, a first solenoid valve is installed on the moving cylinder.

[0008] Preferably, the radius of the flow rate regulating ball is smaller than any radius of the truncated cone-shaped cavity of the fixed cylinder.

[0009] Preferably, the connection mechanism comprises a first hydraulic pipe connected to a hydraulic pump, both sides of the glue injection pipe are connected to second hydraulic pipes, and one end of the second hydraulic pipe away from the glue injection pipe is connected to the first hydraulic pipe.

[0010] Preferably, a second solenoid valve is installed on the second hydraulic pipe.

[0011] In the utility model, the proposed generator glue injection device has the following beneficial technical effects:

[0012] 1. Through the setting of two second hydraulic pipes, the glue discharge from the second hydraulic pipe on one side will push the piston to move, and the glue discharge from the second hydraulic pipe on the other side will push the piston to move. Since the volume of the glue injection pipe is fixed, quantitative glue discharge can be achieved during glue discharge to avoid a large amount of glue waste, and the glue discharge from the second hydraulic pipe on the other side also completes the filling of glue and prepares for the next quantitative glue discharge, thereby realizing the continuity of quantitative glue discharge, and there is no need to wait for the next quantitative glue discharge.

[0013] 2. The setting of the flow rate adjustable glue discharge mechanism utilizes the threaded connection between the fixed cylinder and the movable cylinder, so that the movable cylinder can move on the fixed cylinder by rotating the thread, thereby driving the flow rate adjusting ball to move in the truncated cone-shaped cavity of the fixed cylinder. Since the inner cavity of the fixed cylinder is a truncated cone-shaped cavity, the volume of the flow rate adjusting ball remains unchanged, and therefore the flow rate of the glue liquid can be adjusted by simply rotating the movable cylinder, which is convenient for adjusting the flow rate of the glue liquid.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the glue discharging mechanism with adjustable flow rate of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the utility model after the moving cylinder of the flow rate adjustable glue discharging mechanism moves.

[0018] In the figure, 1. hydraulic pump; 2. glue injection pipe; 3. connecting mechanism; 31. first hydraulic pipe; 32. second hydraulic pipe; 33. second solenoid valve; 4. piston; 5. glue discharging mechanism with adjustable flow rate; 51. fixed cylinder; 52. movable cylinder; 53. flow rate adjusting ball; 54. connecting rod; 55. fixed rod; 56. first solenoid valve; 6. glue injection gun nozzle. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] like Figure 1-Figure 3 A generator glue injection device shown includes a hydraulic pump 1 and a glue injection pipe 2. The glue injection pipe 2 is connected to the hydraulic pump 1 through a connecting mechanism 3. A piston 4 is slidably connected inside the glue injection pipe 2. The glue injection pipe 2 is connected to two flow rate adjustable glue delivery mechanisms 5. The flow rate adjustable glue delivery mechanisms 5 are connected to a glue injection gun nozzle 6.

[0021] A further improvement of the technical solution is that the flow rate adjustable glue discharge mechanism 5 includes a fixed cylinder 51, and the fixed cylinder 51 is connected to the glue injection tube 2, an external thread is provided on the fixed cylinder 51, and a moving cylinder 52 is sleeved on the fixed cylinder 51, an internal thread is provided on the inner wall of the moving cylinder 52, and the fixed cylinder 51 and the moving cylinder 52 are threadedly connected, so that the moving cylinder 52 can move on the fixed cylinder 51 by threaded rotation, and the inner cavity of the fixed cylinder 51 is a truncated cone-shaped cavity, that is, a truncated cone-shaped chamber, a flow rate adjusting ball 53 is provided in the moving cylinder 52, and a connecting rod 54 is installed on the flow rate adjusting ball 53, fixed rods 55 are installed on both sides of the connecting rod 54, and the end of the fixed rod 55 away from the connecting rod 54 is fixedly connected to the inner wall of the moving cylinder 52.

[0022] In an optional embodiment, a first solenoid valve 56 is installed on the moving cylinder 52 .

[0023] In an optional embodiment, the radius of the flow rate regulating ball 53 is smaller than any radius of the truncated cone-shaped cavity of the fixed cylinder 51 , that is, the flow rate regulating ball 53 can freely pass through the truncated cone-shaped cavity of the fixed cylinder 51 . This design ensures that the flow rate regulating ball 53 will not block the fixed cylinder 51 .

[0024] A further improvement of the technical solution is that the connecting mechanism 3 includes a first hydraulic pipe 31, and the first hydraulic pipe 31 is connected to the hydraulic pump 1, both sides of the glue injection pipe 2 are connected to the second hydraulic pipe 32, and the end of the second hydraulic pipe 32 away from the glue injection pipe 2 is connected to the first hydraulic pipe 31, and the first hydraulic pipe 31 is connected to the two second hydraulic pipes 32 through a three-way valve.

[0025] In an optional embodiment, a second solenoid valve 33 is installed on the second hydraulic pipe 32 , and the first hydraulic pipe 31 and the second hydraulic pipe 32 are both hoses.

[0026] A further improvement of the technical solution is that the flow rate adjustable glue discharging mechanism 5 can be replaced by other existing glue discharging structures that can achieve adjustable flow rate glue discharging.

[0027] In actual use, in order to ensure that the glue does not solidify, the equipment needs to be used at an ambient temperature that is too high or too low. Therefore, it is more suitable for batch glue injection.

[0028] Through the arrangement of the two second hydraulic pipes 32, the glue discharge from the second hydraulic pipe 32 on one side will push the piston 4 to move, and the glue discharge from the second hydraulic pipe 32 on the other side will push the piston 4 to move. Since the volume of the glue injection pipe 2 is fixed, quantitative glue discharge can be achieved during glue discharge to avoid a large amount of glue waste, and the glue discharge from the second hydraulic pipe 32 on the other side also completes the filling of glue and prepares for the next quantitative glue discharge, thereby achieving the continuity of quantitative glue discharge and no waiting is required for the next quantitative glue discharge.

[0029] The setting of the flow rate adjustable glue discharge mechanism 5 utilizes the threaded connection between the fixed cylinder 51 and the movable cylinder 52, so that the movable cylinder 52 can move on the fixed cylinder 51 by rotating the thread, thereby driving the flow rate adjustment ball 53 to move in the truncated cone-shaped cavity of the fixed cylinder 51. Since the inner cavity of the fixed cylinder 51 is a truncated cone-shaped cavity, the volume of the flow rate adjustment ball 53 remains unchanged, and therefore, the flow rate of the glue liquid when it flows out can be adjusted by rotating the movable cylinder 52, which is convenient for adjusting the flow rate of the glue liquid.

[0030] During the working process of this embodiment:

[0031] like Figure 1 As shown, in this state, the second solenoid valve 33 on the left second hydraulic pipe 32 is open, and the second solenoid valve 33 on the right is closed. The hydraulic pump 1 injects the glue into the glue injection pipe 2 through the first hydraulic pipe 31 and the left second hydraulic pipe 32. At this time, the glue discharge from the left second hydraulic pipe 32 will push the piston 4 to move rightward. The piston 4 moves to the rightmost end. At this time, the left side of the piston 4 in the glue injection pipe 2 is filled with glue, and then the second solenoid valve 33 on the left second hydraulic pipe 32 is closed.

[0032] like Figure 1 As shown, in this state, when discharging glue, the second solenoid valve 33 on the right second hydraulic pipe 32 and the first solenoid valve 56 on the left movable cylinder 52 are opened, and the other second solenoid valves 33 and the first solenoid valve 56 are in a closed state, and the glue is injected into the glue injection pipe 2 through the hydraulic pump 1. At this time, the glue discharging of the second hydraulic pipe 32 on the right side will push the piston 4 to move leftward. During the process of the piston 4 moving leftward to the leftmost end, the right side of the piston 4 in the glue injection pipe 2 is filled with glue, and the glue in the glue injection pipe 2 chamber on the left side of the piston 4 enters the glue injection gun nozzle 6 on the left side through the flow rate adjustable glue discharging mechanism 5, so as to realize quantitative glue injection, and then the second solenoid valve 33 on the right second hydraulic pipe 32 and the first solenoid valve 56 on the left movable cylinder 52 are closed;

[0033] like Figure 2As shown, if it is necessary to adjust the flow rate of the glue liquid of the glue injection gun nozzle 6, the movable cylinder 52 is rotated to drive the flow rate adjustment ball 53 to move in the truncated cone-shaped cavity of the fixed cylinder 51, as shown in FIG. Figure 3 As shown in FIG. 1 , since the inner cavity of the fixed cylinder 51 is a truncated cone-shaped cavity, the volume of the flow rate regulating ball 53 remains unchanged, and therefore, the flow rate of the glue liquid can be adjusted by simply rotating the movable cylinder 52. For reference, Figure 2 Since the gap between the flow rate regulating ball 53 and the inner cavity of the fixed cylinder 51 is the smallest, the flow rate is the largest. Figure 3 Since the gap between the flow rate regulating ball 53 and the inner cavity of the fixed cylinder 51 is the largest, the flow rate is the smallest.

[0034] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] 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.

[0036] 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 at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, 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 one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A generator glue injection device, comprising a hydraulic pump (1), characterized in that: It also comprises a glue injection pipe (2), the glue injection pipe (2) is connected to the hydraulic pump (1) via a connecting mechanism (3), a piston (4) is slidably connected inside the glue injection pipe (2), and two flow rate adjustable glue delivery mechanisms (5) are connected to the glue injection pipe (2), and the flow rate adjustable glue delivery mechanisms (5) are connected to a glue injection gun nozzle (6); The flow rate adjustable glue discharging mechanism (5) comprises a fixed cylinder (51), and the fixed cylinder (51) is connected to the glue injection tube (2), the fixed cylinder (51) is provided with an external thread, and a movable cylinder (52) is sleeved on the fixed cylinder (51), the inner wall of the movable cylinder (52) is provided with an internal thread, and the fixed cylinder (51) and the movable cylinder (52) are threadedly connected, and the inner cavity of the fixed cylinder (51) is a truncated cone-shaped cavity, a flow rate regulating ball (53) is provided in the movable cylinder (52), and a connecting rod (54) is installed on the flow rate regulating ball (53), and fixed rods (55) are installed on both sides of the connecting rod (54), and one end of the fixed rod (55) away from the connecting rod (54) is connected to the inner wall of the movable cylinder (52).

2. The generator glue injection device according to claim 1, characterized in that: The moving cylinder (52) is provided with a first solenoid valve (56).

3. The generator glue injection device according to claim 2, characterized in that: The radius of the flow rate regulating ball (53) is smaller than any radius of the truncated cone-shaped cavity of the fixed cylinder (51).

4. The generator glue injection device according to claim 1, characterized in that: The connection mechanism (3) comprises a first hydraulic pipe (31), and the first hydraulic pipe (31) is connected to the hydraulic pump (1), and both sides of the glue injection pipe (2) are connected to the second hydraulic pipe (32), and one end of the second hydraulic pipe (32) away from the glue injection pipe (2) is connected to the first hydraulic pipe (31).

5. The generator glue injection device according to claim 4, characterized in that: A second solenoid valve (33) is installed on the second hydraulic pipe (32).

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