Airtight testing device for speed reducer shell

Abstract

The utility model provides an airtight testing device for a speed reducer housing, and the device comprises a bottom assembly which is used for placing the speed reducer housing and plugging a side wall opening of the speed reducer housing; the top assembly is arranged above the bottom assembly and used for blocking the top opening of the speed reducer shell, the top assembly is provided with at least one blocking plate and at least one blocking rod, the blocking plates are separated from the blocking rods, and independent sealing rings are arranged at the bottoms of the blocking plates and the bottoms of the blocking rods. According to the utility model, the opening of the speed reducer housing can be plugged to carry out an air tightness test. In the utility model, the top component is provided with at least one plugging plate and at least one plugging rod, and the independent sealing rings are arranged at the bottoms of the plugging plate and the plugging rod to seal the top opening of the speed reducer shell, so that the operation of replacing each sealing ring is more convenient, the sealing rings do not need to be customized, and the use cost is reduced; instable sealing performance caused by deformation of the airtightness testing device can be avoided, and the sealing performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of airtightness detection, in particular to an airtightness testing device for a reducer housing. Background Art

[0002] Combination Figure 1 , Figure 2 As shown, the reducer housing 200 has two parts, a water channel (201, 202) and a cavity 203. When used with the motor, water and lubricating oil circulate to dissipate heat and lubricate. The water channel and the cavity have several openings connected to the outside, which need to be blocked during the airtight test. The airtight test ensures that there are no leaks in the water channel (201, 202) and the cavity 203, otherwise the motor will fail to work.

[0003] In the prior art, the airtightness test device seals the top of the reducer housing with a whole contour seal ring to seal the openings thereon. Since the arrangement of the openings is relatively scattered, the shape of the whole contour seal ring is relatively complex.

[0004] In the process of realizing the utility model, the inventors found that there are at least the following problems in the prior art: the shape of the contoured sealing ring is complex, which firstly makes the operation of replacing the contoured sealing ring difficult; secondly, the contoured sealing ring needs to be customized, which will increase the cost of use; finally, the matching error between the contoured sealing ring and the corresponding opening will increase, which will increase the risk of sealing failure. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] Therefore, the purpose of the utility model is to provide an airtight testing device for a reducer housing, which has reliable sealing performance, is easy to replace the sealing ring, and reduces the use cost of the sealing ring.

[0007] In order to achieve the above object, the utility model proposes an airtightness testing device for a reducer housing, comprising:

[0008] A bottom assembly, used for placing a reducer housing and sealing a side wall opening of the reducer housing;

[0009] The top component is arranged above the bottom component and is used to seal the top opening of the reducer housing. The top component has at least one sealing plate and at least one sealing rod. The sealing plate and the sealing rod are separated, and independent sealing rings are provided at the bottom of the sealing plate and the sealing rod.

[0010] According to the airtightness test device for the reducer housing of the utility model, the opening of the reducer housing is sealed by setting a bottom component to seal the side wall opening of the reducer housing, and the top component is set to seal the top opening of the reducer housing, so as to achieve the sealing of the opening of the reducer housing for airtightness test. In the airtightness test device of the utility model, the top component has at least one sealing plate and at least one sealing rod, and the bottom of the sealing plate and the sealing rod are provided with independent sealing rings to seal the top opening of the reducer housing. Compared with the use of a whole sealing ring in the prior art, the operation of replacing each sealing ring is more convenient, the sealing ring does not need to be customized, the use cost can be reduced, and the unstable sealing caused by the deformation of the airtightness test device can be avoided, and the sealing performance can be improved.

[0011] According to one embodiment of the utility model, the top component includes a top plate and a connecting rod, the blocking rod is arranged at the bottom of the top plate, the blocking plate is connected to the bottom of the top plate through the connecting rod, and the cross-sectional area of ​​the blocking plate is larger than the cross-sectional area of ​​the blocking rod.

[0012] According to an embodiment of the present utility model, the blocking rod is an elastic push rod.

[0013] According to an embodiment of the utility model, the top assembly further comprises at least one pressure rod, which is an elastic push rod, and a buffer block is provided at the end of the pressure rod, and the pressure rod is used to abut against a protrusion formed by extending outward from the side wall of the reducer housing.

[0014] According to an embodiment of the utility model, the top component further includes a plurality of limiting columns, and the lengths of the limiting columns are adjustable.

[0015] According to an embodiment of the utility model, the bottom component includes a bottom plate and a support column, the support column is arranged on the top of the bottom plate, and the support column is arranged opposite to the limiting column.

[0016] According to one embodiment of the utility model, the bottom component also includes a bottom sealing plate and a contour plate, the bottom sealing plate is arranged on the bottom plate, the contour plate is arranged on the bottom sealing plate, and a sealing ring surrounding the contour plate is arranged on the bottom sealing plate.

[0017] According to an embodiment of the utility model, the bottom component further includes a guide block and a guide plate, the guide block and the guide plate are arranged on the bottom sealing plate, and the height of the guide plate is greater than the height of the guide block.

[0018] According to an embodiment of the utility model, the bottom component further comprises at least one blocking cylinder, the blocking cylinder is arranged on the bottom plate, and a blocking head is arranged at the end of the push rod of the blocking cylinder.

[0019] According to an embodiment of the utility model, the bottom component further includes a dotting cylinder and a proximity sensor, the dotting cylinder is used to dot the reducer housing that meets airtightness requirements, and the proximity sensor is used to detect whether the reducer housing is installed on the base plate.

[0020] 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

[0021] Various other advantages and benefits will become apparent to those skilled in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only used for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used throughout the accompanying drawings to represent the same components. Among them:

[0022] Figure 1 It is a schematic diagram of the structure of the reducer housing.

[0023] Figure 2 It is a schematic diagram of the structure inside the reducer housing.

[0024] Figure 3 It is a structural schematic diagram of an airtightness testing device for a reducer housing according to an embodiment of the utility model.

[0025] Figure 4 It is a structural schematic diagram of a top component in an airtightness testing device for a reducer housing according to an embodiment of the utility model.

[0026] Figure 5 It is a structural schematic diagram of a bottom component in an airtightness testing device for a reducer housing according to an embodiment of the utility model.

[0027] Figure 6 It is a schematic diagram of the working state of the airtightness testing device for the reducer housing according to an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 10-top assembly, 11-top plate, 12-limiting column, 13-sealing plate, 14-sealing rod, 15-pressure rod, 20-bottom assembly, 21-bottom plate, 22-support column, 23-bottom sealing plate, 24-guide block, 25-guide plate, 26-sealing cylinder, 27-dotting cylinder, 28-proximity sensor, 29-profile plate, 100-airtightness test device for reducer housing, 121-column, 122-nut, 123-bolt, 131-first sealing plate, 132-second sealing plate, 133-third sealing plate, 200-reducer housing, 201-first water channel, 202-second water channel, 203-cavity, 261-bracket, 262-side sealing plate, 263-limiting block, 264-guide rod, 271-dotting pen. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having 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 should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0031] Combination Figures 1 to 6 As shown, an embodiment of the utility model proposes an airtight testing device 100 for a reducer housing, wherein the reducer housing 200 has a cavity 203, and the opening of the cavity 203 is located at the bottom of the reducer housing 200. The top and side walls of the reducer housing 200 have a plurality of openings, and the openings are connected to the cavity 203. Some openings are larger in size and are used to install transmission parts, and some openings are smaller in size. The reducer housing 200 is also provided with water channels, such as a first water channel 201 and a second water channel 202. When performing an airtight test, these openings and water channel openings need to be blocked.

[0032] In this embodiment, the airtightness testing device 100 for the reducer housing includes a bottom component 20 and a top component 10 .

[0033] The bottom assembly 20 plays a supporting role, and is used to place the reducer housing 200 and seal the side wall opening of the reducer housing 200. The side wall opening of the reducer housing 200 can be sealed by a plug with a sealing ring installed, and the sealing ring can be made of materials such as silicone or rubber. The shape and size of the plug are adapted and designed according to the side wall opening, and there is no specific limitation on this.

[0034] The top component 10 is arranged above the bottom component 20, and is used to seal the top opening of the reducer housing 200. The top component 10 has at least one sealing plate 13 and at least one sealing rod 14. The sealing plate 13 and the sealing rod 14 are separated, and independent sealing rings are arranged at the bottom of the sealing plate 13 and the sealing rod 14. The size of the sealing ring is adapted and set according to the size of the top opening.

[0035] The number of the blocking plates 13 and the blocking rods 14 is designed according to actual needs. Exemplarily, the number of the blocking plates 13 is 3, namely the first blocking plate 131, the second blocking plate 132 and the third blocking plate 133, which have different shapes, and their cross-sectional shapes can be circular or approximately triangular, and each blocking plate blocks a larger opening. And each blocking rod 14 blocks a smaller opening. The position distribution of the blocking plates 13 and the blocking rods 14 is designed based on the position of the top opening. When the top component 10 and the bottom component 20 are used in combination, the blocking plates 13 and the blocking rods 14 can block the top opening at one time.

[0036] According to the airtightness test device for the reducer housing of the embodiment of the utility model, the opening of the reducer housing is sealed by setting a bottom component to seal the side wall opening of the reducer housing, and the top component is set to seal the top opening of the reducer housing, so as to achieve the sealing of the opening of the reducer housing for airtightness test. The airtightness test device of the embodiment of the utility model has a top component with at least one sealing plate and at least one sealing rod, and the bottom of the sealing plate and the sealing rod are provided with independent sealing rings to seal the top opening of the reducer housing. Compared with the use of a whole sealing ring in the prior art, the operation of replacing each sealing ring is more convenient, the sealing ring does not need to be customized, the use cost can be reduced, and the unstable sealing caused by the deformation of the airtightness test device can be avoided, and the sealing performance can be improved.

[0037] Combination Figure 3 , Figure 4 As shown, in some embodiments, the top assembly 10 includes a top plate 11 and a connecting rod, a blocking rod 14 is arranged at the bottom of the top plate 11, and the blocking plate 13 is connected to the bottom of the top plate 11 through the connecting rod, and the cross-sectional area of ​​the blocking plate 13 is larger than the cross-sectional area of ​​the blocking rod 14. The connecting rod and the blocking rod 14 can be made of an integral material, such as metal or alloy, and the connecting rod and the blocking rod 14 are connected to the top plate 11 by fasteners. The advantage of the integral material is that it has good mechanical strength and durability. In one example, the blocking rod 14 is an elastic top rod. The elastic top rod is similar to a shock absorber, and a spring is provided on it. The elastic top rod can retract after being subjected to force. The advantage of the elastic top rod is that it can absorb part of the impact force and avoid damage to the sealing ring at the bottom. It should be noted that the type of the blocking rod 14 can be arbitrarily selected according to actual needs.

[0038] The top assembly 10 also includes at least one pressure rod 15, which is also an elastic top rod. A buffer block is provided at the end of the pressure rod 15, and the pressure rod 15 is used to abut against a protrusion formed by the side wall of the reducer housing 200 extending outward. The number of pressure rods 15 is set according to actual needs. The pressure rod 15 plays a role in pressing down the reducer housing 200. The material of the buffer block can be a copper block. Copper has high ductility and toughness, making it easy to process into various shapes and sizes. At the same time, the strength of copper is sufficient to support the force required to be borne by the buffer block, and can effectively absorb and disperse the impact.

[0039] The top assembly 10 also includes a plurality of limit posts 12, and the length of the limit posts 12 is adjustable. Therefore, after the length of the limit posts 12 changes, the positions of the pressure rod 15, the blocking plate 13, the blocking rod 14 and the pressure rod 15 will change accordingly, so that the reducer housing 200 can be pressed at a more suitable position to achieve a better sealing effect. In one example, the limit post 12 includes a column 121, a nut 122 and a bolt 123, and the bolt 123 is threadedly connected to the column 121. The length of the limit post 12 can be adjusted by rotating the bolt 123, and the nut 122 can lock the bolt 123 after being adjusted to a suitable length.

[0040] Combination Figures 3 to 6 As shown, in some embodiments, the bottom component 20 includes a bottom plate 21 and a support column 22. The support column 22 is disposed on the top of the bottom plate 21. The support column 22 is disposed opposite to the limiting column 12 to play a supporting and stabilizing role.

[0041] The bottom assembly 20 further includes a bottom blocking plate 23 and a profiling plate 29. The bottom blocking plate 23 is arranged on the bottom plate 21, and the profiling plate 29 is arranged on the bottom blocking plate 23. The bottom blocking plate 23 is provided with a sealing ring surrounding the profiling plate 29. The shape of the profiling plate 29 is adapted to the opening of the cavity 203 of the reducer housing 200, and the bottom blocking plate 23 completes the blocking of the opening of the cavity 203.

[0042] In order to prevent the position of the reducer housing 200 from being offset, the bottom assembly 20 further includes a guide block 24 and a guide plate 25, which are arranged on the bottom blocking plate 23, and the height of the guide plate 25 is greater than the height of the guide block 24. The guide block 24 and the guide plate 25 can ensure the correct position of the reducer housing 200 during the movement.

[0043] The bottom assembly 20 also includes at least one plugging cylinder 26, which is arranged on the bottom plate 21, and a plugging head is provided at the end of the push rod of the plugging cylinder 26. In other words, the side wall openings of the reducer housing 200 can be semi-automatically or automatically plugged, reducing the workload of the operator. The number of plugging cylinders 26 is adapted according to the number of side wall openings. In order to reduce the influence on the deformation of the airtightness test device 100 for the reducer housing, a bracket 261 for mounting the plugging cylinder 26 is arranged on the bottom plate 21, which can improve the stability of the airtightness test.

[0044] For situations where the side wall opening is larger, such as Figure 1 The opening of the first water channel 201 can be blocked by multiple blocking cylinders 26 arranged side by side to block the side wall opening. Figure 5 , two blocking cylinders 26 are combined side by side to form a pair, and the ends of the two push rods thereof are connected to a side blocking plate 262. In order to achieve the side blocking plate 262 blocking the side wall opening along the preset direction, a limit block 263 is provided on the bottom plate 21, and a guide rod 264 is provided on the limit block 263 for sliding connection. The guide rod 264 is connected to the side blocking plate 262 at one end close to the reducer housing 200. Thus, with the help of the guide rod 264, the push rods of the two blocking cylinders 26 drive the side blocking plate 262 to achieve blocking the side wall opening along the preset direction.

[0045] In addition, the bottom assembly 20 also includes a dotting cylinder 27 and a proximity sensor 28. The dotting cylinder 27 is used to dot the airtight qualified reducer housing 200. A replaceable dotting pen 271 is provided on the push rod of the dotting cylinder 27. The proximity sensor 28 can detect whether the reducer housing 200 has been installed on the bottom plate 21.

[0046] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0047] 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.

[0048] 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.

[0049] In the description of the present invention, the directions or positional relationships indicated by the terms "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0050] Any process or method description in the flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An airtightness testing device for a reducer housing, characterized in that: include: A bottom component (20) is used to place the reducer housing (200) and seal the side wall opening of the reducer housing (200); A top component (10) is arranged above the bottom component (20) and is used to seal the top opening of the reducer housing (200). The top component (10) has at least one sealing plate (13) and at least one sealing rod (14). The sealing plate (13) and the sealing rod (14) are separated, and independent sealing rings are provided at the bottom of the sealing plate (13) and the sealing rod (14).

2. The airtightness testing device for a reducer housing according to claim 1, characterized in that: The top assembly (10) comprises a top plate (11) and a connecting rod, the blocking rod (14) is arranged at the bottom of the top plate (11), the blocking plate (13) is connected to the bottom of the top plate (11) via the connecting rod, and the cross-sectional area of ​​the blocking plate (13) is greater than the cross-sectional area of ​​the blocking rod (14).

3. The airtightness testing device for a reducer housing according to claim 1, characterized in that: The blocking rod (14) is an elastic push rod.

4. The airtightness testing device for a reducer housing according to claim 2, characterized in that: The top assembly (10) further comprises at least one pressure rod (15), wherein the pressure rod (15) is an elastic push rod, and a buffer block is provided at the end of the pressure rod (15). The pressure rod (15) is used to abut against a protrusion formed by extending outward from the side wall of the reducer housing (200).

5. The airtightness testing device for a reducer housing according to claim 2, characterized in that: The top component (10) further comprises a plurality of limiting columns (12), and the length of the limiting columns (12) is adjustable.

6. The airtightness testing device for a reducer housing according to claim 5, characterized in that: The bottom assembly (20) comprises a bottom plate (21) and a support column (22), wherein the support column (22) is arranged on the top of the bottom plate (21), and the support column (22) is arranged opposite to the limiting column (12).

7. The airtightness testing device for a reducer housing according to claim 6, characterized in that: The bottom assembly (20) further comprises a bottom surface blocking plate (23) and a contour plate (29), wherein the bottom surface blocking plate (23) is arranged on the bottom plate (21), the contour plate (29) is arranged on the bottom surface blocking plate (23), and the bottom surface blocking plate (23) is provided with a sealing ring surrounding the contour plate (29).

8. The airtightness testing device for a reducer housing according to claim 7, characterized in that: The bottom assembly (20) further comprises a guide block (24) and a guide plate (25), wherein the guide block (24) and the guide plate (25) are arranged on the bottom surface blocking plate (23), and the height of the guide plate (25) is greater than the height of the guide block (24).

9. The airtightness testing device for a reducer housing according to claim 6, characterized in that: The bottom component (20) further comprises at least one blocking cylinder (26), wherein the blocking cylinder (26) is arranged on the bottom plate (21), and a blocking head is arranged at the end of a push rod of the blocking cylinder (26).

10. The airtightness testing device for a reducer housing according to claim 6, characterized in that: The bottom component (20) further comprises a dotting cylinder (27) and a proximity sensor (28), wherein the dotting cylinder (27) is used to dot the airtight reducer housing (200), and the proximity sensor (28) is used to detect whether the reducer housing (200) is installed on the bottom plate (21).

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