Gear chamber air tightness detection tool

Abstract

The invention belongs to the technical field of mechanical manufacturing and detection, and particularly relates to a gear chamber airtightness detection tool which comprises a box body, a floating plate, an electric cylinder, a mounting seat, a hollow shaft, a hollow rotating disc, an adjusting assembly, an inflation pump, a conveying pipe, an elastic pipe, two L-shaped plates, two supporting and guiding assemblies, two lifting plates, two transverse toothed plates, two mounting plates, a clamping and limiting assembly and a transmission assembly. The upper positions of the front side and the rear side of the box body are open, and an electric cylinder is fixedly installed at the top of the box body. The device is reasonable in design and simple in structure, different inflation plugs can be conveniently and rapidly called for inflation operation according to gear chambers of different sizes and different models, meanwhile, a gear box can be conveniently and rapidly clamped and limited, an operator can conveniently and rapidly locate the position of an air leakage point in the air tightness detection process, operation is easy and convenient, and practicability is high. The gear chamber air tightness detection efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical manufacturing inspection, and particularly relates to an airtightness detection tooling for a gear chamber. Background Art

[0002] In the field of mechanical manufacturing, as a key component, the airtightness of the gear chamber directly affects the operation stability and reliability of the equipment. If the gear chamber is poorly sealed, it may lead to lubricating oil leakage, which not only pollutes the environment, but also causes increased wear of the gears due to poor lubrication, significantly shortening the service life of the equipment. At the same time, external impurities are likely to invade, interfering with the normal meshing of the gears and causing equipment failures. Therefore, it is crucial to accurately detect the airtightness of the gear chamber.

[0003] Traditional methods for detecting the airtightness of gear chambers have many drawbacks. Taking the bubble method as an example, immersing the gear chamber in water or applying soapy water can visually observe the bubbles at the leakage points, but it cannot accurately measure the leakage rate, has low sensitivity to minor leaks, and requires drying treatment of the gear chamber after detection, increasing the process and time costs. Although the pressure decay method can roughly evaluate the leakage situation, the detection time is long, it is difficult to detect minor leaks, and both the detection efficiency and accuracy are difficult to meet the requirements of modern production. Moreover, existing detection toolings often have poor versatility. Due to differences in structure and size of different models of gear chambers, the tooling needs to be frequently replaced, seriously restricting the detection work efficiency and flexibility.

[0004] With the development of the mechanical manufacturing industry towards high precision and high efficiency, higher requirements are put forward for the airtightness detection tooling of gear chambers. There is an urgent need for a detection tooling that is easy to operate, can quickly adapt to different models of gear chambers, and can accurately locate the air leakage position during the detection process, so as to improve the detection efficiency and quality and meet the development needs of the industry. In this context, inventing a new type of airtightness detection tooling for gear chambers has become an urgent problem to be solved. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art, and a gear chamber airtightness detection tooling is proposed.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions: A gear chamber airtightness detection tooling includes a box body, a floating plate, an electric cylinder, a mounting seat, a hollow shaft, a hollow turntable, an adjusting component, an air inflation pump, a delivery pipe, an elastic pipe, two L-shaped plates, two support and guiding components, two lifting plates, two transverse toothed plates, two mounting plates, a clamping and limiting component, and a transmission component;

[0007] The upper positions on the front and rear sides of the box body are both open, and the electric cylinder is fixedly installed on the top of the box body. The mounting seat is arranged inside the box body and fixedly connected to the working end of the electric cylinder. The hollow shaft is rotatably installed on the mounting seat. The hollow turntable is fixedly installed on the hollow shaft and is communicated with the hollow shaft. A plurality of inflation plugs of different models are fixedly installed on the outer peripheral side of the hollow turntable. The air pump is fixedly installed on the top of the box body. The delivery pipe is fixedly installed on the box body and is communicated with the air outlet of the air pump. The elastic pipe is connected to the delivery pipe, and the elastic pipe is in sealed rotational connection with the hollow shaft. A pressure gauge is fixedly installed on the delivery pipe;

[0008] The adjusting assembly is arranged at the rear side of the mounting seat and is connected to the hollow shaft;

[0009] The two L-shaped plates are both fixedly installed on the inner bottom wall of the box body and are symmetrically arranged. Rectangular openings are formed in the two L-shaped plates. The two support and guiding assemblies are respectively arranged in the corresponding rectangular openings. The floating plate is arranged on one side where the two L-shaped plates are close to each other and is connected to the two support and guiding assemblies. The two lifting plates are respectively slidably installed in the corresponding rectangular openings and are respectively connected to the corresponding support and guiding assemblies. The two transverse toothed plates are respectively slidably installed on the corresponding lifting plates. The two mounting plates are respectively fixedly installed at one ends where the two transverse toothed plates are close to each other. The clamping and limiting assembly is arranged on the two mounting plates. The transmission assembly is arranged on the two L-shaped plates and is connected to the mounting seat, the two lifting plates and the two transverse toothed plates.

[0010] Preferably, the adjusting assembly includes a servo motor, a driving gear and a driven gear. The servo motor is fixedly installed at the rear side of the mounting seat. The output shaft of the servo motor and the hollow shaft are respectively fixedly sleeved with the driving gear and the driven gear, and the driving gear and the driven gear are meshed with each other.

[0011] Preferably, the support and guiding assembly includes two guide rods, a support bar and two first springs. Support bars are slidably installed in the two rectangular openings. The floating plate is fixedly installed on one side where the two support bars are close to each other. Two guide rods are fixedly installed in the rectangular openings. The two guide rods are both slidably connected to the support bar. Two sliding sleeves are fixedly installed on the bottom side of the support bar and are sleeved outside the corresponding guide rods. The bottom ends of the two first springs are both fixedly installed on the bottom inner wall of the rectangular opening.

[0012] Preferably, connecting plates are fixedly installed on the top sides of the two support bars. The two lifting plates are respectively fixedly installed on the top sides of the corresponding connecting plates and are slidably connected to the corresponding two guide rods.

[0013] Preferably, the clamping and limiting assembly includes a plurality of sliding rods, a plurality of limiting blocks, a plurality of second springs, a plurality of universal balls and a plurality of pressing blocks. A plurality of sliding rods arranged parallel to each other are slidably mounted on the mounting plate. One ends of the plurality of sliding rods are fixedly mounted with limiting blocks. A second spring that is movably sleeved outside the sliding rod is fixedly mounted between the limiting block and the mounting plate. A universal ball is fixedly mounted at one end of the sliding rod away from the limiting block. A pressing block that can deflect in all directions is arranged on the universal ball.

[0014] Preferably, a rubber pad is pasted on one side of the pressing block away from the guide rod.

[0015] Preferably, the transmission assembly includes two vertical toothed plates, two mounting strips and two wide gears. Mounting strips are fixedly mounted on both sides of the mounting seat. Vertical toothed plates slidably connected to the corresponding L-shaped plates are fixedly mounted on the bottom sides of the two mounting strips. Mounting grooves are formed in the two lifting plates. Wide gears are rotatably mounted in the two mounting grooves. The two wide gears are respectively engaged with the horizontal toothed plate and the vertical toothed plate on the corresponding side.

[0016] Preferably, a U-shaped liquid level tube and two water inlet and outlet pipes provided with control valves are fixedly mounted on the box body.

[0017] Preferably, a one-way valve and a pressure relief valve are fixedly mounted on the delivery pipe, and the one-way valve and the pressure relief valve are respectively located above and below the pressure gauge.

[0018] Preferably, a plurality of positioning blocks are fixedly mounted on the outer peripheral side of the hollow turntable, and the plurality of positioning blocks are respectively adapted to the corresponding inflatable plugs.

[0019] The beneficial effects of the present invention are:

[0020] By setting up the cooperation of the box body, floating plate, electric cylinder, mounting seat, hollow shaft, hollow turntable, adjustment component, air inflation pump, delivery pipe, elastic pipe, two L-shaped plates, two support and guiding components, two lifting plates, two transverse toothed plates, two mounting plates, clamping and limiting component and transmission component, the operator only needs to place the gear chamber to be subjected to airtightness detection on the floating plate, and then control the electric cylinder to extend to push the mounting seat, hollow shaft, hollow turntable and multiple air inflation plugs to descend. At the same time, under the cooperation of the transmission component, the transverse toothed plate controls the two mounting plates to move towards each other, so that the gear chamber can be quickly clamped and limited by the clamping and limiting component, and a suitable model of air inflation plug can be quickly called by the adjustment component before the air inflation plug is inserted into the air inlet of the gear box. Then start the air inflation pump to inflate into the hollow shaft and hollow turntable through the delivery pipe and elastic pipe, and inflate the gear chamber through the air inflation plugs on the hollow turntable. As the electric cylinder extends and the positioning block abuts against the gear box, it is possible to control the gear box to drive the floating plate to move downward synchronously and sink into the water, so that the leakage position can be quickly detected while detecting the airtightness of the gear box by the pressure difference method. The operation is convenient, and it can well adapt to the airtightness detection work of different models of gear chambers, and greatly improves the working efficiency and use flexibility of the airtightness detection tooling for gear chambers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 FIG. is a three-dimensional structural schematic diagram of an airtightness detection tooling for a gear chamber proposed by the present invention;

[0023] Figure 2 FIG. is a structural schematic diagram of another perspective;

[0024] Figure 3 is Figure 1 front view structural schematic diagram of;

[0025] Figure 4 FIG. is a partial three-dimensional structural schematic diagram of an airtightness detection tooling for a gear chamber proposed by the present invention;

[0026] Figure 5 FIG. is a structural schematic diagram of the air inflation pump, delivery pipe, elastic pipe, pressure relief valve, one-way valve, mounting seat, adjustment component, hollow shaft, electric cylinder, hollow turntable, positioning block and air inflation plug part proposed by the present invention;

[0027] Figure 6 is Figure 5Schematic diagram of the local three-dimensional structure;

[0028] Figure 7 Schematic diagram of the structures of the L-shaped plate, rectangular opening, lifting plate, guide rod, first spring, support bar, connecting plate, and wide gear proposed by the present invention;

[0029] Figure 8 Schematic diagram of the partial structures of the mounting bar, vertical toothed plate, horizontal toothed plate, wide gear, mounting plate, and clamping and limiting assembly proposed by the present invention;

[0030] Figure 9 Schematic diagram of the structures of the sliding rod, abutting block, mounting plate, horizontal toothed plate, second spring, universal ball, and limiting block proposed by the present invention.

[0031] In the figure: 1. Box body; 11. Liquid level pipe; 12. Inlet and outlet water pipe; 2. Electric cylinder; 21. Mounting seat; 3. Hollow shaft; 301. Servo motor; 302. Driving gear; 303. Driven gear; 31. Hollow turntable; 311. Inflatable plug; 312. Positioning block; 32. Inflatable pump; 33. Delivery pipe; 331. Check valve; 332. Pressure gauge; 333. Pressure relief valve; 34. Elastic pipe; 4. L-shaped plate; 41. Support bar; 42. Guide rod; 43. First spring; 44. Floating plate; 5. Lifting plate; 501. Connecting plate; 51. Horizontal toothed plate; 52. Mounting plate; 521. Sliding rod; 522. Limiting block; 523. Second spring; 524. Universal ball; 525. Abutting block; 53. Mounting bar; 54. Vertical toothed plate; 55. Wide gear. Specific embodiments

[0032] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0033] Refer to Figures 1-9, A gear chamber airtightness detection tooling, including a box body 1, a floating plate 44, an electric cylinder 2, a mounting seat 21, a hollow shaft 3, a hollow turntable 31, an air inflation pump 32, a delivery pipe 33, an elastic pipe 34, two L-shaped plates 4, two lifting plates 5, two transverse toothed plates 51, and two mounting plates 52. The upper positions on the front and rear sides of the box body 1 are both open, and the electric cylinder 2 is fixedly installed on the top of the box body 1. The mounting seat 21 is arranged inside the box body 1 and fixedly connected to the working end of the electric cylinder 2. The hollow shaft 3 is rotatably installed on the mounting seat 21. The hollow turntable 31 is fixedly installed on the hollow shaft 3 and is communicated with the hollow shaft 3. A plurality of air inflation plugs 311 of different models are fixedly installed on the outer peripheral side of the hollow turntable 31. The air inflation pump 32 is fixedly installed on the top of the box body 1. The delivery pipe 33 is fixedly installed on the box body 1 and is communicated with the air outlet of the air inflation pump 32. The elastic pipe 34 is connected to the delivery pipe 33, and the elastic pipe 34 is hermetically and rotationally connected to the hollow shaft 3. A pressure gauge 332 is fixedly installed on the delivery pipe 33;

[0034] A servo motor 301 is fixedly installed on the rear side of the mounting seat 21. A driving gear 302 and a driven gear 303 are respectively fixedly sleeved on the output shaft of the servo motor 301 and the hollow shaft 3. The driving gear 302 and the driven gear 303 are meshed with each other, and any air inflation plug 311 of a different model on the hollow turntable 31 can be quickly called as needed;

[0035] The two L-shaped plates 4 are both fixedly installed on the bottom inner wall of the box body 1 and are symmetrically arranged. Rectangular openings are provided on the two L-shaped plates 4. Support bars 41 are slidably installed in the two rectangular openings. The floating plate 44 is fixedly installed on one side where the two support bars 41 are close to each other. Two guide rods 42 are fixedly installed in the rectangular opening. The two guide rods 42 are both slidably connected to the support bar 41. Two first springs 43 are fixedly installed on the bottom side of the support bar 41 and are slidably sleeved on the outer sides of the corresponding guide rods 42. The bottom ends of the two first springs 43 are both fixedly installed on the bottom inner wall of the rectangular opening, which can provide support and guiding effects for the floating plate 44. Connecting plates 501 are fixedly installed on the top sides of the two support bars 41. The two lifting plates 5 are respectively fixedly installed on the top sides of the corresponding connecting plates 501 and are slidably connected to the corresponding two guide rods 42, which can ensure that the lifting plates 5 follow the floating plate 44 to achieve synchronous lifting. The two transverse toothed plates 51 are respectively slidably installed on the corresponding lifting plates 5. The two mounting plates 52 are respectively fixedly installed at one ends where the two transverse toothed plates 51 are close to each other;

[0036] A plurality of sliding rods 521 arranged in parallel with each other are slidably mounted on the mounting plate 52. One ends of the plurality of sliding rods 521 are fixedly mounted with limit blocks 522. A second spring 523 that is movably sleeved outside the sliding rod 521 is fixedly mounted between the limit block 522 and the mounting plate 52. The end of the sliding rod 521 away from the limit block 522 is fixedly mounted with a universal ball 524. A pressing block 525 that can be deflected in all directions is arranged on the universal ball 524. It can clamp and limit the gear chamber to be subjected to airtightness detection placed on the floating plate 44 when the two mounting plates 52 move towards each other, and at the same time can well adapt to the stable clamping of the outer contours of different types of gear chambers. Among them, in order to ensure that the pressing block 525 can adjust the inclination angle of the pressing block 525 according to the actual situation after contacting the outer contour surface of the gearbox, a spherical groove is opened on the pressing block 525, the universal ball 524 is arranged in the spherical groove, and the outer side of the universal ball 524 is in contact with the inner wall of the spherical groove;

[0037] Mounting strips 53 are fixedly mounted on both sides of the mounting seat 21. Vertical toothed plates 54 that are slidably connected to the corresponding L-shaped plates 4 are fixedly mounted on the bottom sides of the two mounting strips 53. Mounting grooves are opened on the two lifting plates 5. Wide gears 55 are rotatably mounted in the two mounting grooves. The two wide gears 55 are respectively engaged with the horizontal toothed plate 51 and the vertical toothed plate 54 on the corresponding side, and can control the two horizontal toothed plates 51 to move towards each other when the mounting seat 21 moves downward, so as to realize the rapid clamping and limiting operation of the gearbox.

[0038] In this embodiment, in order to avoid scratching the gearbox when clamping and limiting the gearbox, a rubber pad is pasted on the side of the pressing block 525 away from the guide rod 42.

[0039] In this embodiment, in order to facilitate the operator to intuitively understand the water level height in the box body 1, and at the same time facilitate filling water into the box body 1 or discharging the water in the box body 1, a U-shaped liquid level tube 11 and two water inlet and outlet pipes 12 provided with control valves are fixedly mounted on the box body 1.

[0040] In this embodiment, in order to avoid pressure relief from the position of the air inflation pump 32 during the voltage stabilization operation, and at the same time facilitate the pressure relief operation after the detection is completed, a one-way valve 331 and a pressure relief valve 333 are fixedly mounted on the delivery pipe 33, and the one-way valve 331 and the pressure relief valve 333 are respectively located above and below the pressure gauge 332.

[0041] In this embodiment, in order to avoid the situation that the inflation plug 311 is overstressed when inserted into the air inflation port of the gearbox, a plurality of positioning blocks 312 are fixedly mounted on the outer peripheral side of the hollow turntable 31, and the plurality of positioning blocks 312 are respectively adapted to the corresponding inflation plugs 311.

[0042] Among them, the pressure relief valve 333 adopts an electromagnetic electronically controlled pressure valve in the prior art, which is convenient to control its pressure relief operation.

[0043] Working principle: When in use, first connect the power supply, inject an appropriate amount of water into the box body 1 through the water inlet and outlet pipe 12. The operator gently places the gear chamber to be subjected to airtightness detection on the floating plate 44, and then starts the electric cylinder 2. The working end of the electric cylinder 2 begins to extend, pushing the mounting seat 21, the hollow shaft 3, the hollow turntable 31 and a plurality of inflation plugs 311 to descend as a whole. At the same time, start the servo motor 301, and its output shaft drives the driving gear 302 to rotate. Since the driving gear 302 meshes with the driven gear 303, the driven gear 303 rotates accordingly, and then drives the hollow shaft 3 and the hollow turntable 31 to rotate. According to the detection requirements, quickly call the appropriate type of inflation plug 311 on the hollow turntable 31 to the position corresponding to the inflation port of the gear chamber.

[0044] After the inflation plug 311 is inserted into the inflation port position of the gear chamber, the positioning block 312 can prevent the inflation plug 311 from being overstressed and control the gearbox to drive the floating plate 44 to move downward synchronously as the mounting seat 21 continues to descend. Since the lifting plate 5 is fixedly connected to the connecting plate 501, and the connecting plate 501 is fixedly connected to the support bar 41, and the support bar 41 slides on the guide rod 42, when the floating plate 44 drives the support bar 41 to move downward, it will also drive the lifting plate 5 to move downward. At the same time, the descent process of the lifting plate 5 is stable and restricted by the guide rod 42. During this process, since the two wide gears 55 are respectively meshed with the corresponding horizontal tooth plates 51 and vertical tooth plates 54, it can drive the horizontal tooth plate 51 to drive the mounting plate 52 to move towards each other during the descent of the mounting seat 21, so as to control a plurality of pressing blocks 525 to press against the outside of the gearbox. And due to the arrangement of the slide rod 521 and the second spring 523, each pressing block 525 can be kept in a separate pressing state, so as to well adapt to the clamping and limiting operations of different types of gearboxes.

[0045] After the gearbox sinks into the water, the gearbox is in a stable clamping and limiting state. Start the air inflation pump 32, and the air inflation pump 32 injects air with the required pressure into the gearbox through the delivery pipe 33, the elastic pipe 34, the hollow shaft 3, the hollow turntable 31 and the corresponding inflation plugs 311. Due to the setting of the one-way valve 331, abnormal pressure relief phenomena can be avoided during the pressure stabilization process. And because the gearbox is in the water, it is convenient for the operator to quickly find the position of the air leakage point when there is an air leakage situation during the airtightness detection operation.

[0046] The above has introduced in detail a gear chamber airtightness detection tooling provided by the present invention. Specific embodiments are applied in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A gear room air tightness detection tool, characterized in that: It comprises a box body (1), a floating plate (44), an electric cylinder (2), a mounting seat (21), a hollow shaft (3), a hollow turntable (31), an adjustment component, an air pump (32), a delivery pipe (33), an elastic pipe (34), two L-shaped plates (4), two supporting guide components, two lifting plates (5), two transverse tooth plates (51), two mounting plates (52), a clamping and limiting component and a transmission component; The front and rear sides of the box (1) are both opened at the upper positions, and the electric cylinder (2) is fixedly mounted on the top of the box (1); the mounting seat (21) is arranged in the box (1) and fixedly connected to the working end of the electric cylinder (2); the hollow shaft (3) is rotatably mounted on the mounting seat (21); the hollow turntable (31) is fixedly mounted on the hollow shaft (3) and communicated with the hollow shaft (3); a plurality of inflatable plugs (311) of different models are fixedly mounted on the outer peripheral side of the hollow turntable (31); the inflatable pump (32) is fixedly mounted on the top of the box (1); the delivery pipe (33) is fixedly mounted on the box (1) and communicated with the air outlet of the inflatable pump (32); the elastic tube (34) is connected to the delivery pipe (33); the elastic tube (34) is sealed and rotatably connected to the hollow shaft (3); and a pressure gauge (332) is fixedly mounted on the delivery pipe (33); The adjustment assembly is arranged on the rear side of the mounting seat (21) and is connected to the hollow shaft (3); The two L-shaped plates (4) are fixedly mounted on the bottom inner wall of the box body (1) and are symmetrically arranged. The two L-shaped plates (4) are each provided with a rectangular opening. The two support guide assemblies are respectively arranged in the corresponding rectangular openings. The floating plate (44) is arranged on a side where the two L-shaped plates (4) are close to each other and is connected to the two support guide assemblies. The two lifting plates (5) are respectively slidably mounted in the corresponding rectangular openings and are respectively connected to the corresponding support guide assemblies. The two transverse tooth plates (51) are respectively slidably mounted on the corresponding lifting plates (5). The two mounting plates (52) are respectively fixedly mounted on one end where the two transverse tooth plates (51) are close to each other. The clamping limit assembly is arranged on the two mounting plates (52). The transmission assembly is arranged on the two L-shaped plates (4) and is connected to the mounting seat (21), the two lifting plates (5) and the two transverse tooth plates (51).

2. The gear chamber air tightness detection tool according to claim 1, characterized in that: The adjustment assembly comprises a servo motor (301), a driving gear (302) and a driven gear (303); the servo motor (301) is fixedly mounted on the rear side of the mounting seat (21); the driving gear (302) and the driven gear (303) are fixedly sleeved on the output shaft of the servo motor (301) and the hollow shaft (3), respectively; the driving gear (302) and the driven gear (303) are meshed with each other.

3. The gear chamber air tightness detection tool according to claim 1, characterized in that: The support guide assembly comprises two guide rods (42), a support strip (41) and two springs (43); the support strips (41) are slidably mounted in the two rectangular openings; the floating plate (44) is fixedly mounted on the side where the two support strips (41) are close to each other; the two guide rods (42) are fixedly mounted in the rectangular opening; the two guide rods (42) are slidably connected to the support strips (41); two springs (43) slidably sleeved on the outside of the corresponding guide rods (42) are fixedly mounted on the bottom side of the support strip (41); the bottom ends of the two springs (43) are fixedly mounted on the bottom inner wall of the rectangular opening.

4. The gear chamber air tightness detection tool according to claim 3 is characterized in that: A connecting plate (501) is fixedly mounted on the top side of each of the two supporting bars (41), and two lifting plates (5) are respectively fixedly mounted on the top side of the corresponding connecting plate (501) and are slidably connected to the corresponding two guide rods (42).

5. The gear chamber air tightness detection tool according to claim 1, characterized in that: The clamping and limiting assembly comprises a plurality of slide bars (521), a plurality of limiting blocks (522), a plurality of springs (523), a plurality of universal balls (524) and a plurality of abutting blocks (525); a plurality of slide bars (521) arranged in parallel with each other are slidably installed on the mounting plate (52); a limiting block (522) is fixedly installed at one end of the plurality of slide bars (521); a spring (523) movably sleeved on the outside of the slide bars (521) is fixedly installed between the limiting block (522) and the mounting plate (52); a universal ball (524) is fixedly installed at one end of the slide bar (521) away from the limiting block (522); and a universal ball (524) is provided on the universal ball (524) which can be universally deflected and abutting block (525) is arranged.

6. A gear chamber air tightness detection tool according to any one of claims 3 and 5, characterized in that: A rubber pad is attached to the side of the pressing block (525) away from the guide rod (42).

7. The gear chamber air tightness detection tool according to claim 1, characterized in that: The transmission assembly comprises two vertical tooth plates (54), two mounting bars (53) and two wide gears (55). The mounting bars (53) are fixedly mounted on both sides of the mounting seat (21). The bottom sides of the two mounting bars (53) are fixedly mounted with vertical tooth plates (54) slidably connected to the corresponding L-shaped plates (4). The two lifting plates (5) are provided with mounting grooves. The wide gears (55) are rotatably mounted in the two mounting grooves. The two wide gears (55) are respectively meshed with the horizontal tooth plate (51) and the vertical tooth plate (54) on the corresponding side.

8. The gear chamber air tightness detection tool according to claim 1, characterized in that: A U-shaped liquid level pipe (11) and two water inlet and outlet pipes (12) provided with control valves are fixedly mounted on the box body (1).

9. The gear chamber air tightness detection tool according to claim 1, characterized in that: A one-way valve (331) and a pressure relief valve (333) are fixedly installed on the delivery pipe (33), and the one-way valve (331) and the pressure relief valve (333) are respectively located at the upper end and the lower end of the pressure gauge (332).

10. The gear chamber air tightness detection tool according to claim 1, characterized in that: A plurality of positioning blocks (312) are fixedly mounted on the outer peripheral side of the hollow rotating disk (31), and the plurality of positioning blocks (312) are respectively matched with corresponding inflation plugs (311).

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