CN218956015U

CN218956015U - Axle housing airtight experimental device

Info

Publication number: CN218956015U
Application number: CN202320048013.0U
Authority: CN
Inventors: 李宏宇; 聂江红
Original assignee: Hefei Kuanxin Mechatronic Co ltd
Current assignee: Hefei Kuanxin Mechatronic Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-05-02
Anticipated expiration: 2033-01-06

Abstract

The utility model discloses an axle housing airtight experimental device which comprises a water tank, a bearing bottom frame and a first bracket, wherein the water tank is arranged on the bearing bottom frame; the upper surface of the bearing bottom frame is fixedly connected with a water tank; a bracket is symmetrically and fixedly connected in the water tank; a first bracket is fixedly connected to the bracket; the axle housing support through V-arrangement supports the liquid level below one third position in the water tank, then the cylinder circular telegram action promotes movable seat cover extrusion axle housing and makes the other end and fixed seat cover automatic contact accomplish sealed jam both ends, then carry high-pressure gas through the gas injection unit and pass through the inside that the fixing base cover advanced the axle housing, then observe the axle housing surface that is located the surface of water, then rotate the surface of the omnidirectional observation axle housing and whether leak gas of axle housing, the gas tightness detects is accomplished in the rotation round, thereby realize the high leakproofness of high efficiency jam axle housing and carry out automatic function of inflating and carry out the gas tightness and detect, solved current manual work and blockked up axle housing both ends and ventilate and detect the problem that leads to leakproofness low and inefficiency.

Description

Axle housing airtight experimental device

Technical Field

The utility model relates to the field of axle housing processing, in particular to an axle housing airtight experimental device.

Background

The axle housing is provided with a main speed reducer, a differential mechanism, a half axle and a wheel assembly matrix and mainly used for supporting and protecting the main speed reducer, the differential mechanism, the half axle and the like; axle housings are an important component of the drive axle and one of the main components of the drive train. The driving axle housing has enough strength and rigidity and small mass, and is convenient for the disassembly, assembly and adjustment of the main speed reducer. The driving axle housing can be structurally divided into an integral axle housing, a separable axle housing and a combined axle housing.

The air tightness test is to test whether an object has tightness, and the object has no leak except the entrance, and represents that the whole object is in a sealed state after the exit and the entrance are closed, and in particular, the air tightness test is necessary to be performed on the object which needs to be used in a sealed state.

After the welding machine and the machining process of the axle housing assembly are finished, whether the welding part of the axle housing has the phenomena of air leakage and the like needs to be verified, so that the phenomena of oil leakage and the like of the axle housing in the using process are avoided; the existing detection mode is that both ends of the axle housing are blocked by manual mode, then high-pressure air is injected into the axle housing, whether air bubbles exist on the surface of the axle housing below the water surface or not is observed, and air tightness detection is completed, but the mode of manually blocking both ends is low in efficiency, and the situation of low tightness is easy to occur, so that the air tightness detection precision of other places of the axle housing is affected.

Disclosure of Invention

The utility model aims to solve the technical problems that the existing detection mode is a manual mode for blocking two ends of an axle housing, then high-pressure air is injected into the axle housing, whether air bubbles exist on the surface of the axle housing below the water surface or not is observed, and air tightness detection is finished, but the manual mode for blocking the two ends is low in efficiency, and the situation of low tightness easily occurs, so that the air tightness detection precision of other places of the axle housing is affected.

In order to achieve the above object, the present utility model is realized by the following technical scheme;

the utility model relates to an axle housing airtight experimental device which comprises a water tank, a bearing bottom frame and a first bracket, wherein the water tank is arranged on the bearing bottom frame; the upper surface of the bearing bottom frame is fixedly connected with a water tank; a bracket is symmetrically and fixedly connected in the water tank; a first bracket is fixedly connected to the bracket; the first bracket is fixedly connected with a cylinder; the piston end of the cylinder is fixedly connected with a movable seat sleeve; axle housing brackets are symmetrically and fixedly connected in the water tank; the upper surface of the bracket is fixedly connected with a second bracket; a fixed seat sleeve is fixedly connected to the second bracket; the fixed seat sleeve is fixedly connected with an air injection unit.

Further, the fixed seat sleeve is internally provided with ventilation holes; the vent holes are internally threaded and inserted with vent bolts; and the perforated bolt is sleeved with a gasket and a sealing gasket.

Further, the gas injection unit comprises a gas pipe, a valve and a gas pump; the air pipe is communicated and inserted into the air holes; the tail end of the air pipe is fixedly connected with an air pump; a valve is fixedly connected to the air pipe; the air pump is fixedly connected to the side wall of the water tank.

Furthermore, center pins are symmetrically inserted on the axle housing brackets; the center pin is sleeved with a bearing; the upper end of the axle housing bracket is V-shaped.

Furthermore, the lower surface of the bearing bottom frame is symmetrically and fixedly connected with channel steel.

The axle housing airtight experimental device provided by the utility model has the following beneficial effects:

1. according to the utility model, the V-shaped axle housing support is used for supporting the axle housing to be fixed at one third position below the liquid level in the water tank, then the cylinder is electrified to push the movable seat sleeve to extrude the axle housing and enable the other end of the movable seat sleeve to be in automatic contact with the fixed seat sleeve to finish sealing and blocking two ends, then high-pressure gas is conveyed through the gas injection unit to be sleeved into the axle housing through the fixed seat, then the surface of the axle housing below the water surface is observed, then the surface of the axle housing is rotated to comprehensively observe whether the air leakage exists, and the air tightness detection is completed by rotating the axle housing once, so that the function of automatically inflating the blocked axle housing with high efficiency and high tightness to perform air tightness detection is realized, and the problems of low tightness and low efficiency caused by the existing manual blocking of two ends of the axle housing and ventilation detection are solved;

2. according to the utility model, the sealing gasket is contacted with the openings at the two ends of the axle housing, the two ends of the axle housing are blocked under the pushing pressure of the air cylinder, and meanwhile, the open-pore bolts are not influenced to be communicated with the air holes, so that the air tightness detection is conveniently carried out by an external air source, and the bolts in the movable seat sleeve are solid blocking air holes.

Drawings

The following describes the embodiments of the present utility model in further detail with reference to the drawings;

FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 2 is a schematic side sectional view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A;

fig. 4 is a schematic top view of the water tank of the present utility model.

The reference numerals in the figures illustrate: 1. a water tank; 2. a bearing bottom frame; 3. a first bracket; 4. a cylinder; 5. a movable seat cover; 6. axle housing brackets; 7. fixing the seat cover; 8. a center pin; 9. a bearing; 10. a second bracket; 11. a bracket; 12. channel steel; 13. an air pipe; 14. a valve; 15. an air pump; 16. a sealing gasket; 17. ventilation holes; 18. a hole-opening bolt; 19. a gasket.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The following description of the technical solutions in the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the embodiments of the present utility model, all directional indicators (such as up-down-left-right-front-rear … …) are merely used to explain the relative positional relationship between the components, motion, etc. in a specific posture (as shown in the drawings), if the specific posture is changed, the directional indicators correspondingly change, and the connection may be a direct connection or an indirect connection.

Referring to fig. 1-4, an axle housing airtight experimental device comprises a water tank 1, a bearing bottom frame 2 and a first bracket 3; the upper surface of the bearing bottom frame 2 is fixedly connected with a water tank 1; a bracket 11 is symmetrically and fixedly connected in the water tank 1; the bracket 11 is fixedly connected with a first bracket 3; the first bracket 3 is fixedly connected with a cylinder 4; the piston end of the cylinder 4 is fixedly connected with a movable seat sleeve 5; axle housing brackets 6 are symmetrically and fixedly connected in the water tank 1; the upper surface of the bracket 11 is fixedly connected with a second bracket 10; the second bracket 10 is fixedly connected with a fixed seat cover 7; the fixed seat cover 7 is fixedly connected with an air injection unit in a communicating way; during operation, the axle housing is supported by the V-shaped axle housing support 6 and is fixed at one third position below the liquid level in the water tank 1, then the cylinder 4 is electrified to push the movable seat sleeve 5 to extrude the axle housing and enable the other end to be in automatic contact with the fixed seat sleeve 7 to finish sealing and blocking two ends, then high-pressure gas is conveyed through the gas injection unit to enter the inside of the axle housing through the fixed seat sleeve 7, then the surface of the axle housing below the water surface is observed, then the surface of the axle housing is rotated to comprehensively observe whether the air leakage exists or not, the air tightness detection is completed in one circle, and therefore the function of automatic inflation for air tightness detection is achieved on the blocked axle housing with high efficiency, and the problems of low tightness and low efficiency caused by the existing manual blocking of two ends of the axle housing and ventilation detection are solved.

An air hole 17 is formed in the fixed seat cover 7; the vent holes 17 are internally and spirally inserted with vent bolts 18; a gasket 19 and a sealing gasket 16 are sleeved on the perforated bolt 18; during operation, through the contact of the sealing gasket 16 and the openings at the two ends of the axle housing, the two ends of the axle housing are plugged under the pushing pressure of the air cylinder 4, the open-pore bolts 18 are not influenced to be communicated with the ventilation holes 17, the air tightness detection is conveniently carried out by an external air source, and the bolts in the movable seat cover 5 are solid plugged ventilation holes 17.

The gas injection unit comprises a gas pipe 13, a valve 14 and a gas pump 15; the air pipe 13 is communicated and inserted into the air hole 17; the tail end of the air pipe 13 is fixedly connected with an air pump 15; the air pipe 13 is fixedly connected with a valve 14; the air pump 15 is fixedly connected to the side wall of the water tank 1; when the device works, the working pressurized gas is electrified through the air pump 15 and is conveyed into the axle housing through the air pipe 13 and the air holes 17, so that whether the part of the axle housing, which is positioned under water, leaks air or not is observed, and then the axle housing is rotated, so that whether the axle housing leaks air or not can be observed in an omnibearing manner.

Center pins 8 are symmetrically inserted into the axle housing bracket 6; the center pin 8 is sleeved with a bearing 9; the upper end of the axle housing bracket 6 is V-shaped; during operation, place the axle housing through the axle housing support 6 of V-arrangement to make the axle housing more stable, hang the support axle housing through center pin 8 and bearing 9, thereby make the axle housing can realize the rotation of low resistance, can realize the surface of omnidirectional observation axle housing, thereby observe whether gas leakage.

The lower surface of the bearing bottom frame 2 is symmetrically and fixedly connected with channel steel 12; during operation, the bearing underframe 2 is lifted up through the channel steel 12, so that the carrying and moving are conveniently carried out by using a forklift.

By adopting the scheme, when the device is used, the V-shaped axle housing bracket 6 is used for supporting the axle housing to be fixed at one third position below the liquid level in the water tank 1, then the air cylinder 4 is electrified to push the movable seat sleeve 5 to extrude the axle housing and enable the other end to be in automatic contact with the fixed seat sleeve 7 to finish sealing and blocking two ends, then high-pressure air is conveyed through the air injection unit to enter the interior of the axle housing through the fixed seat sleeve 7, then the surface of the axle housing below the water surface is observed, then the surface of the axle housing is rotated to omnidirectionally observe whether air leakage exists or not, and the air tightness detection is completed by rotating for one circle, so that the function of automatically inflating the high-efficiency and high-tightness blocked axle housing to perform air tightness detection is realized, and the problems of low tightness and low efficiency caused by the existing manual blocking of the two ends of the axle housing and ventilation detection are solved; the sealing gasket 16 is in open contact with two ends of the axle housing, two ends of the axle housing are completely blocked under the pushing pressure of the air cylinder 4, and meanwhile, the open-pore bolts 18 are not influenced to be communicated with the air holes 17, so that an external air source is convenient to detect the air tightness, and the bolts in the movable seat cover 5 are solid to block the air holes 17; the pressurized gas is supplied to the inside of the axle housing through the gas pipe 13 and the gas vent 17 by the gas pump 15 in a powered-on working manner, so that whether the part of the axle housing positioned under water leaks gas or not is observed, and then the axle housing is rotated, so that whether the axle housing leaks gas or not can be observed in an omnibearing manner; the axle housing is placed through the V-shaped axle housing bracket 6, so that the axle housing is more stable, and the axle housing is supported in the air through the center pin 8 and the bearing 9, so that the axle housing can rotate with low resistance, the surface of the axle housing can be observed in an omnibearing manner, and whether air leakage occurs or not is observed; the bearing underframe 2 is lifted by the channel steel 12, so that the carrying and moving by using a forklift are facilitated.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. An axle housing airtight experimental device is characterized in that; comprises a water tank (1), a bearing bottom frame (2) and a first bracket (3); the upper surface of the bearing bottom frame (2) is fixedly connected with a water tank (1); a bracket (11) is symmetrically fixedly connected in the water tank (1); a first bracket (3) is fixedly connected to the bracket (11); a cylinder (4) is fixedly connected to the first bracket (3); the piston end of the air cylinder (4) is fixedly connected with a movable seat sleeve (5); axle housing brackets (6) are symmetrically and fixedly connected in the water tank (1); the upper surface of the bracket (11) is fixedly connected with a second bracket (10); a fixed seat sleeve (7) is fixedly connected to the second bracket (10); the fixed seat cover (7) is fixedly connected with an air injection unit.

2. The axle housing airtight test device according to claim 1, wherein: an air hole (17) is formed in the fixed seat cover (7); the vent holes (17) are internally inserted with perforated bolts (18) in a threaded manner; and a gasket (19) and a sealing gasket (16) are sleeved on the perforated bolt (18).

3. The axle housing airtight test device according to claim 2, wherein: the gas injection unit comprises a gas pipe (13), a valve (14) and a gas pump (15); the air pipe (13) is communicated and inserted into the air hole (17); an air pump (15) is fixedly connected at the tail end of the air pipe (13); a valve (14) is fixedly connected to the air pipe (13); the air pump (15) is fixedly connected to the side wall of the water tank (1).

4. An axle housing airtight test device according to claim 3, wherein: center pins (8) are symmetrically inserted on the axle housing bracket (6); a bearing (9) is sleeved on the center pin (8); the upper end of the axle housing bracket (6) is V-shaped.

5. The axle housing airtight test device according to claim 4, wherein: and channel steel (12) is symmetrically and fixedly connected to the lower surface of the bearing bottom frame (2).