Axle housing assembly sealing performance test tool

Abstract

The utility model provides an axle housing assembly sealing performance test tool, which relates to the technical field of automobile part testing and comprises an inverted U-shaped support frame welded at the top ends of two vertical side plates on the same side on two H-shaped bearing frames. Two transverse support positioning shafts are welded to the top ends of the two vertical side plates in parallel, and a blocking plate is jointly installed on the two transverse support positioning shafts on the two sides in a sliding mode; a hydraulic cylinder is fixedly hoisted at the bottom of the middle position of the top end of the U-shaped supporting frame; the axle housing assembly is jointly composed of a gear box in the middle, two shaft sleeves symmetrically formed on the side wall of the gear box and two extending shaft sleeves symmetrically welded to the head ends of the two shaft sleeves. Compared with the prior art, the sealing device has the advantages that the tedious steps of sequentially sliding and driving the cover plate and the two blocking plates step by step to seal and open the top end opening of the gear box and the head end openings of the two extension shaft sleeves before and after the sealing performance test can be omitted, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts testing, in particular to a bridge housing assembly sealing test tool. Background Art

[0002] The bridge housing assembly sealing test fixture is a special fixture used for bridge housing assembly sealing testing. It is designed to simplify the testing process, improve testing efficiency, and ensure the accuracy of test results.

[0003] The existing test tooling is equipped with three plugging plates for sealing the gearbox opening and the two shaft sleeve head end openings. However, most of the three plugging plates lack a synchronous transmission mechanism, resulting in the need to tighten and close the three plugging plates in steps before and after the sealing test. The operation is cumbersome and inconvenient, which indirectly reduces the test efficiency of the tooling. Utility Model Content

[0004] In view of this, the utility model provides a bridge housing assembly sealing test tool to solve the problem that before and after the sealing test, the three blocking plates need to be tightened and closed step by step, which is cumbersome and inconvenient to operate and indirectly reduces the test efficiency of the tool.

[0005] The technical solution proposed by the utility model is: a bridge housing assembly sealing test tool, specifically comprising: an I-shaped base, two H-shaped bearing frames symmetrically welded to the top sides of both ends of the I-shaped base, and the bridge housing assembly is commonly supported and clamped in the top U-shaped grooves of the two H-shaped bearing frames;

[0006] An inverted U-shaped support frame is welded to the top of the two vertical side panels on the same side of the two H-shaped load-bearing frames, and two horizontal support positioning shafts are welded in parallel to the top parts of the two vertical side panels. A blocking plate is slidably mounted on the two horizontal support positioning shafts on each side; a hydraulic cylinder is fixedly hoisted at the bottom of the middle position of the top of the U-shaped support frame, and the bottom end of the hydraulic cylinder piston rod is fixedly connected to the cover plate; an inverted L-shaped force transmission plate is welded to the outer edge of the cover plate, and two connecting rods are symmetrically connected to the tail end of the L-shaped force transmission plate and the two blocking plates for rotation;

[0007] The bridge housing assembly consists of a gearbox in the middle position, two shaft sleeves symmetrically formed on the side walls of the gearbox, and two extended shaft sleeves symmetrically welded to the head ends of the two shaft sleeves; the two blocking plates are used to respectively block the head end openings of the two extended shaft sleeves, and the cover plate is used to block the top end opening of the gearbox.

[0008] Further,

[0009] A water injection pipe is welded to the top of the cover plate and passes through the cover plate. The water injection pipe is connected to an external pressurized water injection system through a hose.

[0010] Further,

[0011] A U-shaped pushing frame is slidably installed through the longitudinal brace connecting plates of the H-shaped bearing frames described in the two places, and the top end of the U-shaped pushing frame abuts against the two shaft sleeves.

[0012] Furthermore,

[0013] Two vertical threaded shafts are symmetrically and rotatably installed on the longitudinal brace connecting plates of the I-shaped base.

[0014] Furthermore,

[0015] Worms are fixedly sleeved on the bottom parts of the two vertical threaded shafts.

[0016] Furthermore,

[0017] A horizontal worm is rotatably installed through the bottom parts between the other vertical side plates of the two H-shaped bearing frames, and two rockers are symmetrically welded at both ends of the horizontal worm.

[0018] Furthermore,

[0019] The horizontal worm is in meshing transmission with the two worms.

[0020] A sealing test tool for a bridge housing assembly provided by the utility model has the following beneficial effects:

[0021] 1. Through the power transmission of the two crank-slider mechanisms, the cover plate and the two plug plates can be synchronously driven, and the tightening and opening of the top opening of the gearbox and the first-end openings of the two extension shaft sleeves can be completed at one time. Compared with the prior art, it can save the cumbersome steps of sliding and driving the cover plate and the two plug plates step by step before and after the sealing test to seal and open the top opening of the gearbox and the first-end openings of the two extension shaft sleeves. The operation is simple, which helps to indirectly improve the test use efficiency of the tool; the hydraulic cylinder is used to telescopically drive the cover plate to slide up and down.

[0022] 2. When the two vertical threaded shafts rotate forward, they can push and drive the U-shaped pushing frame to slide upward, push out the bridge housing assembly from the U-shaped card slots at the top ends of the two H-shaped bearing frames, and keep the bottom side of the bridge housing assembly flush with the top ends of the two H-shaped bearing frames. In this state, the bridge housing assembly can be removed by horizontally pushing it outwards from the top ends of the two H-shaped bearing frames to complete the disassembly. Compared with the traditional tool for directly disassembling the bridge housing assembly by greatly lifting the bridge housing assembly, it can avoid the blocking interference caused by the cover plate during the extraction and disassembly of the bridge housing assembly, and improve the convenience of extracting and disassembling the bridge housing assembly.

[0023] 3. When installing the bridge housing assembly, it is only necessary to push the bridge housing assembly inward and horizontally to the top of the two H-shaped load-bearing frames and the U-shaped push frame, and reverse the two vertical threaded shafts to push the U-shaped push frame and the bridge housing assembly down, and then lower the bridge housing assembly into the two U-shaped slots. Compared with the traditional tooling that uses a lifting and lowering method to install the bridge housing assembly, this can avoid the obstruction and interference of the cover plate on the bridge housing assembly during a long lifting and lowering process, which helps to improve the installation convenience of the bridge housing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0025] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0026] In the attached figure:

[0027] Figure 1 Shows a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 Shows a schematic diagram of the installation position of the L-shaped force transmission plate of the utility model;

[0029] Figure 3 Shows a schematic diagram of the axle housing assembly of the present invention in a disassembled state;

[0030] Figure 4 A schematic diagram of the disassembled state of the U-shaped ejection frame of the present invention is shown;

[0031] Figure 5 The figure shows a schematic diagram of the bottom structure of the cover plate of the present invention.

[0032] List of reference numerals:

[0033] 1. I-shaped base; 101. H-shaped load-bearing frame; 1011. Horizontal support positioning shaft; 102. Horizontal worm; 103. U-shaped support frame; 104. Blocking plate; 105. U-shaped ejector frame; 2. Axle housing assembly; 201. Gearbox; 202. Bushing; 203. Extension bushing; 3. Hydraulic cylinder; 4. Vertical threaded shaft; 401. Worm gear; 5. Cover plate; 501. Water injection pipe; 502. L-shaped force transmission plate; 503. Connecting rod. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Please refer to Figures 1 to 5 ;

[0036] Example 1:

[0037] The utility model proposes a bridge housing assembly sealing test tool, comprising: an I-shaped base 1, two H-shaped bearing frames 101 symmetrically welded to the top sides of both ends of the I-shaped base 1, and the bridge housing assembly 2 is commonly supported and clamped in the top U-shaped clamping grooves of the two H-shaped bearing frames 101;

[0038] An inverted U-shaped support frame 103 is welded to the top of the two vertical side panels on the same side of the two H-shaped carrier frames 101. Two horizontal support positioning shafts 1011 are welded to the top portions of the two vertical side panels in parallel. A blocking plate 104 is slidably mounted on the two horizontal support positioning shafts 1011 on each side. A hydraulic cylinder 3 is fixedly mounted on the bottom of the middle position of the top of the U-shaped support frame 103. The bottom end of the piston rod of the hydraulic cylinder 3 is fixedly connected to the cover plate 5. An inverted L-shaped force transmission plate 502 is welded to the outer edge of the cover plate 5. Two connecting rods 503 are symmetrically connected to the tail end of the L-shaped force transmission plate 502 and the two blocking plates 104 for rotation.

[0039] The axle housing assembly 2 consists of a gearbox 201 in the middle, two shaft sleeves 202 symmetrically formed on the side walls of the gearbox 201, and two extended shaft sleeves 203 symmetrically welded to the head ends of the two shaft sleeves 202. Two blocking plates 104 are used to respectively block the head end openings of the two extended shaft sleeves 203, and the cover plate 5 is used to block the top end opening of the gearbox 201.

[0040] The two connecting rods 503, the two blocking plates 104, the L-shaped force transmission plate 502 and the cover plate 5 are connected together to form two crank slider mechanisms. Through these two mechanisms, when the cover plate 5 slides up and down to implement the loosening and tightening of the top opening of the gear box 201, the two blocking plates 104 can be driven to slide toward each other to loosen and tighten the head end openings of the two extended shaft sleeves 203. In this way, the cover plate 5 and the two blocking plates 104 can be driven synchronously through the power transmission of the two crank slider mechanisms. , the tightening and opening and closing of the top opening of the gear box 201 and the two extension sleeve 203 head openings can be completed at one time. Compared with the existing technology, this can save the tedious steps of sliding the drive cover plate 5 and the two blocking plates 104 step by step to seal and open the top opening of the gear box 201 and the two extension sleeve 203 head openings before and after the sealing test. It is easy to operate and helps to indirectly improve the test efficiency of the tooling; the hydraulic cylinder 3 is used to telescopically drive the cover plate 5 to slide up and down.

[0041] Preferably,

[0042] A water injection pipe 501 is welded to the top of the cover plate 5 and passes through the cover plate 5 . The water injection pipe 501 is connected to an external pressurized water injection system through a hose.

[0043] Based on the first embodiment, the second embodiment:

[0044] A U-shaped pushing frame 105 is slidably installed on the longitudinal support connecting plates of the two H-shaped supporting frames 101 , and the top end of the U-shaped pushing frame 105 is in contact with the two shaft sleeves 202 .

[0045] Preferably,

[0046] Two vertical threaded shafts 4 are symmetrically mounted on the longitudinal support connecting plate of the I-shaped base 1 for rotation.

[0047] Preferably,

[0048] The bottom ends of the two vertical threaded shafts 4 are both fixedly mounted with worm gears 401 .

[0049] Preferably,

[0050] A transverse worm 102 is rotatably installed between the bottom ends of the other vertical side plates of the two H-shaped carrier frames 101 , and two rockers are symmetrically welded at both ends of the transverse worm 102 .

[0051] Preferably,

[0052] The horizontal worm 102 is meshed with two worm wheels 401 for transmission;

[0053] Before and after the test, when disassembling and assembling the axle housing assembly 2, the cover plate 5 needs to be lifted up to a clear space. However, due to the limited telescopic stroke of the hydraulic cylinder 3, the space formed by the cover plate 5 at the top of the gear box 201 after it is lifted up is limited, which will hinder the removal and lowering of the axle housing assembly 2.

[0054] When the two vertical threaded shafts 4 rotate in the forward direction, they can push the U-shaped push frame 105 to slide upward, ejecting the axle housing assembly 2 from the U-shaped slots at the top ends of the two H-shaped carriers 101, and keeping the bottom side of the axle housing assembly 2 flush with the top ends of the two H-shaped carriers 101. In this state, the axle housing assembly 2 can be removed from the top ends of the two H-shaped carriers 101 by simply pushing it horizontally outward to complete the disassembly. Compared with the traditional tooling that directly lifts the axle housing assembly 2 to disassemble the axle housing assembly 2, this can avoid the obstruction and interference caused by the cover plate 5 in the extraction and disassembly of the axle housing assembly 2, thereby improving the convenience of extracting and disassembling the axle housing assembly 2.

[0055] When the U-shaped pushing frame 105 pushes the axle housing assembly 2 out of the two U-shaped slots, its top end is flush with the top ends of the two H-shaped carriers 101, and the U-shaped pushing frame 105 should also remain in this state when the axle housing assembly 2 is clamped. When the axle housing assembly 2 is clamped, it is only necessary to push the axle housing assembly 2 inward and move it horizontally to the top ends of the two H-shaped carriers 101 and the U-shaped pushing frame 105, and reverse the two vertical threaded shafts 4 to push the U-shaped pushing frame 105 and the axle housing assembly 2 downward, and clamp the axle housing assembly 2 in the two U-shaped slots. Compared with the traditional tooling that adopts the lifting and lowering method to clamp the axle housing assembly 2, this can avoid the obstruction and interference of the cover plate 5 on the axle housing assembly 2 during the long lifting and lowering process, which helps to improve the installation convenience of the axle housing assembly 2.

[0056] Through the two worm wheels 401 , the horizontal worm 102 can drive the two vertical threaded shafts 4 to rotate.

[0057] The working principle of this embodiment: when testing, first install the bridge housing assembly 2 in the top U-shaped slots of the two H-shaped load-bearing frames 101, and then use two blocking plates 104 to respectively block the head end openings of the two extended shaft sleeves 203, and use the cover plate 5 to block the top opening of the gear box 201, and then start the external pressurized water injection system to pressurize and inject water into the bridge housing assembly 2 and maintain the pressure. After maintaining the pressure for a period of time, observe whether the bridge housing assembly 2 as a whole has leakage. If there is no leakage, it is judged that the sealing of the bridge housing assembly 2 is qualified, otherwise it is unqualified. After the test is completed, shut down the external pressurized water injection system, and drain and pressure the bridge housing assembly 2. Finally, the tested bridge housing assembly 2 is removed from the two U-shaped slots.

[0058] In this article, there are several points to note:

[0059] 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0060] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0061] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A bridge housing assembly sealing test tool, comprising: I-shaped base (1), on the top sides of both ends of the I-shaped base (1), two H-shaped bearing frames (101) are symmetrically welded, and a bridge housing assembly (2) is jointly carried and placed in the U-shaped card slots at the tops of the two H-shaped bearing frames (101); It is characterized in that, on the two vertical side plates on the same side of the two H-shaped bearing frames (101), an inverted U-shaped support frame (103) is jointly welded at the top, and two cross brace positioning shafts (1011) are parallel welded to the top parts of the two vertical side plates. On each side, two cross brace positioning shafts (1011), a plug plate (104) is jointly and slidably installed; at the middle position of the bottom of the top of the U-shaped support frame (103), a hydraulic cylinder (3) is fixedly suspended, and the bottom end of the piston rod of the hydraulic cylinder (3) is fixedly connected to a cover plate (5); an inverted L-shaped force transmission plate (502) is welded to the outer edge of the cover plate (5), and between the tail end of the L-shaped force transmission plate (502) and the two plug plates (104), two connecting rods (503) are symmetrically rotatably connected; The bridge housing assembly (2) is jointly composed of a gear box (201) at the middle position, two shaft sleeves (202) symmetrically formed on the side walls of the gear box (201), and two extended shaft sleeves (203) symmetrically welded to the first ends of the two shaft sleeves (202); the two plug plates (104) are used to respectively block the first end openings of the two extended shaft sleeves (203), and the cover plate (5) is used to block the top opening of the gear box (201).

2. A bridge housing assembly sealing performance testing tooling according to claim 1, characterized in that A water injection pipe (501) penetrating through the cover plate (5) is welded to the top of the cover plate (5), and the water injection pipe (501) is connected to an external pressurized water injection system through a hose.

3. A bridge housing assembly sealing performance testing tooling according to claim 1, characterized in that A U-shaped pushing frame (105) is jointly and slidably installed through the longitudinal brace connecting plates of the two H-shaped bearing frames (101), and the top of the U-shaped pushing frame (105) abuts against the two shaft sleeves (202).

4. A bridge housing assembly sealing performance testing tooling according to claim 1, characterized in that Two vertical threaded shafts (4) are symmetrically rotatably installed on the longitudinal brace connecting plates of the I-shaped base (1).

5. A bridge housing assembly sealing performance testing tooling according to claim 4, characterized in that Worms (401) are fixedly sleeved on the bottom parts of the two vertical threaded shafts (4).

6. A bridge housing assembly sealing performance testing tooling according to claim 5, characterized in that A horizontal worm (102) is rotatably installed through the bottom parts of the other two vertical side plates on the two H-shaped bearing frames (101), and two rocking bars are symmetrically welded to both ends of the horizontal worm (102).

7. A bridge housing assembly sealing performance testing tooling according to claim 6, characterized in that The horizontal worm (102) is in meshing transmission with the two worms (401).

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