Crankcase pressure detection device and method

Abstract

The invention relates to the technical field of pressure detection equipment, and discloses a crankcase pressure detection device and method. Comprising a detection platform, a support is arranged on the detection platform, and a top plate is arranged on the support; the fixing assembly is arranged on the detection platform and used for fixing the crankcase, the fixing assembly comprises a shell arranged on the detection platform, a placement hole is formed in the top end of the shell, a bearing plate is arranged in the shell, a sinking groove coaxial with the placement hole is formed in the bearing plate, and a plurality of clamping pieces are rotationally arranged on the bearing plate and located on the peripheral side of the sinking groove; a first driving motor for driving the clamping piece to rotate is arranged below the shell; a pressing assembly is arranged in the sinking groove and connected to the crankcase in a pressed mode. The adjusting assembly is arranged on the top plate; the detection assembly is arranged on the adjusting assembly, and the position of the detection assembly is changed through the adjusting assembly. The crankcase is fixed by arranging the fixing assembly, and stability of the crankcase is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of pressure detection equipment, and in particular to a crankcase pressure detection device and method. Background Art

[0002] The compressor crankcase is an important component of the compressor. The compressor crankcase is a box-type part, and usually its surface shape is irregular.

[0003] Reference Figure 5 The crankcase 5 includes a base 51, a crankshaft mounting seat 52 for mounting the crankshaft is provided at the center of the base 51, a plurality of supporting legs 53 are provided at the bottom of the base 51 and on the peripheral side of the crankshaft mounting seat 52, and a cylinder barrel 54 is provided at the top of the base 51 and on one side of the crankshaft mounting seat 52.

[0004] Since the shape of the crankcase is irregular and the existing equipment is unable to clamp and fix workpieces of different sizes, the workpieces may easily shift or shake, resulting in inaccurate detection data and reduced detection efficiency. Summary of the invention

[0005] In order to improve the problem that the existing detection device has unstable detection fixation, resulting in inaccurate detection, the present application provides a crankcase pressure detection device and method.

[0006] The present application provides a crankcase pressure detection device and method, which adopts the following technical solutions:

[0007] A crankcase pressure detection device comprises a detection platform, a bracket is arranged on the detection platform, and a top plate is arranged on the bracket;

[0008] A fixing assembly is arranged on the detection platform and used to fix the crankcase. The fixing assembly includes a shell arranged on the detection platform, a placement hole is opened at the top of the shell, a supporting plate is arranged in the shell, a sink groove is arranged coaxially with the placement hole, a plurality of clamping members are rotatably arranged on the supporting plate and located on the periphery of the sink groove, and a first driving motor for driving the clamping members to rotate is arranged below the shell; a clamping assembly is arranged in the sink groove, and the clamping assembly is crimped on the crankcase;

[0009] An adjustment component is arranged on the top plate;

[0010] The detection component is arranged on the adjustment component; the position of the detection component is changed by adjusting the component.

[0011] By adopting the above technical solution, the crankshaft mounting seat of the crankcase is placed in the placement hole. The first driving motor drives a plurality of clamping members to rotate, so that the clamping members abut against the outer wall of the crankshaft mounting seat, restricting the horizontal movement of the crankcase. The pressing component is pressed against the crankcase to restrict the vertical movement of the crankcase, ensuring the stability of the crankcase. The position of the detection component is adjusted by the adjustment component to realize the pressure detection of different positions of the crankcase.

[0012] Optionally, the clamping member includes a rotating shaft rotatably connected to the supporting plate. One end of the rotating shaft above the supporting plate is fixedly connected with a swing arm. The swing arm is horizontally arranged. An extension rod is connected above one end of the swing arm away from the rotating shaft. One end of the extension rod away from the swing arm is provided with a pressing wheel. One end of the rotating shaft below the supporting plate is provided with a first gear. The output end of the first driving motor is connected with a second gear that meshes with the first gear.

[0013] By adopting the above technical solution, during use, the first driving motor drives the rotating shaft to rotate through gear transmission, thereby driving the swing of the swing arm. By the forward and reverse rotation of the first driving motor, the swing arm swings inwards or outwards, driving the pressing wheel to abut against or separate from the outer wall of the crankshaft mounting seat, realizing the fixation or loosening of the crankshaft mounting seat, and thus realizing the rapid fixation of the crankcase.

[0014] Optionally, the pressing component includes a supporting sleeve fixedly connected in the sinking groove. A plurality of pressing blocks are slidably arranged on the periphery of the supporting sleeve. A slideway is formed through the side wall of the supporting sleeve. One end of the pressing block is slidably connected in the slideway. An elastic member is arranged between the pressing block and the supporting sleeve. The top end of the supporting sleeve penetrates and is threadedly connected with a pressing rod. One end of the pressing rod located inside the supporting sleeve is provided with a conical pushing block. One end of the pressing block located inside the supporting sleeve is provided with an inclined surface that abuts against the conical surface of the conical pushing block. The other end of the pressing rod is provided with an adjusting part. A pressing plate is threadedly connected to one end of the pressing rod close to the adjusting part. The pressing plate is used to press against the crankcase.

[0015] By adopting the above technical solution, the crankshaft mounting seat of the crankcase is sleeved on the supporting sleeve. By rotating the adjusting part, the pressing rod moves up and down inside the supporting sleeve. When the pressing rod moves downwards, the conical pushing block drives the pressing block to move outwards, so that the pressing block abuts against the inner wall of the crankshaft mounting seat. At this time, the elastic member is stretched. By rotating the pressing plate, the pressing plate presses against the crankcase, thereby fixing the crankcase. When the pressing rod moves upwards, when the elastic member releases elastic potential energy, the pressing block moves towards the inside of the supporting sleeve. At the same time, rotate the pressing plate to remove the pressing plate, and the crankcase can be removed.

[0016] Optionally, the adjusting assembly includes a first turntable and a second turntable. The second turntable penetrates and is rotatably arranged at the eccentric position of the first turntable, and the detection assembly is arranged at the eccentric position of the second turntable. The first turntable penetrates and is rotatably connected to the top plate. A second driving motor for driving the first turntable is arranged below the top plate. A first gear is arranged at the output end of the second driving motor, and a second gear cooperating with the first gear is arranged on the first turntable. A third driving motor for driving the second turntable to rotate is arranged on the first turntable. A third gear is arranged at the output end of the third driving motor, and a fourth gear cooperating with the third gear is arranged on the second turntable.

[0017] By adopting the above technical solution, the second turntable is arranged at the eccentric position of the first turntable, and the detection assembly is arranged at the eccentric position of the second turntable. By driving the rotation of the first turntable by the second driving motor and driving the rotation of the second turntable by the third driving motor, the position of the detection assembly is adjusted, facilitating the detection of different positions of the crankcase by the detection assembly.

[0018] Optionally, the detection assembly includes an electric push rod arranged at the eccentric position of the second turntable. A pressure sensor is arranged at the telescopic end of the electric push rod, and a pressure head is arranged at the detection end of the pressure sensor.

[0019] By adopting the above technical solution, through the telescopic movement of the electric push rod, the pressure head contacts the crankcase. The pressure sensor detects the pressure exerted on the crankcase by the electric push rod, and observes the change of the crankcase to determine whether the crankcase meets the requirements.

[0020] Optionally, a limiting block is arranged at the top end of the housing, and the limiting block is connected to the support feet of the crankcase.

[0021] By adopting the above technical solution, since the crankshaft mounting seat is cylindrical, if only the crankshaft mounting seat is fixed, the crankcase will rotate. By connecting the support feet of the crankcase to the limiting block, the rotation of the crankcase is restricted, ensuring the stability of the crankcase.

[0022] Optionally, a protective cover covering the adjusting assembly is arranged above the top plate.

[0023] By adopting the above technical solution, a protective cover is arranged on the adjusting assembly to prevent dust and other debris from entering the adjusting assembly, ensuring the normal operation of the adjusting assembly.

[0024] Optionally, it further includes a control terminal. An inductor for detecting whether the crankcase is placed in the placement hole is arranged in the housing. The control terminal is electrically connected to the inductor, the first driving motor, the second driving motor, the third driving motor, and the electric push rod respectively.

[0025] By adopting the above technical solution, the control terminal is used to control each component, achieving fast fixation, rapid adjustment of the detection position, accurate application of pressure, and improving the detection efficiency.

[0026] A usage method of a crankcase pressure detection device, adopting the above pressure detection device, includes the following steps:

[0027] S1: First, place the crankshaft mounting seat in the placement hole, and connect the crankshaft support feet to the limit blocks;

[0028] S2: The inductor detects that the crankcase is placed in the mounting hole, transmits the signal to the control terminal, and the control terminal issues an instruction to control the first drive motor to start and drive the clamping member to abut against the outer wall of the crankshaft mounting seat. Then, use the pressing component to press against the crankcase to fix the crankcase;

[0029] S3: The control terminal controls the second drive motor and the third drive motor in the adjustment component to drive the first turntable and the second turntable to rotate respectively, and adjusts the position of the detection component;

[0030] S4: The control terminal controls the telescopic distance of the electric push rod, and the pressure sensor detects the pressure magnitude to complete the pressure detection.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. Place the crankshaft mounting seat of the crankcase in the placement hole, drive multiple clamping members to rotate through the first drive motor, so that the clamping members abut against the outer wall of the crankshaft mounting seat, restricting the horizontal movement of the crankcase, and use the pressing component to press against the crankcase to restrict the vertical movement of the crankcase, ensuring the stability of the crankcase; adjust the position of the detection component through the adjustment component to achieve pressure detection at different positions of the crankcase;

[0033] 2. The crankshaft mounting seat of the crankcase is sleeved on the support sleeve. By rotating the adjustment part, the pressure rod moves up and down in the support sleeve. When the pressure rod moves downward, the conical push block drives the abutting block to move outward, so that the abutting block abuts against the inner wall of the crankshaft mounting seat. At this time, the elastic member is stretched. By rotating the pressing plate, the pressing plate presses against the crankcase to fix the crankcase; when the pressure rod moves upward, when the elastic member releases elastic potential energy, the abutting block moves toward the inside of the support sleeve, and at the same time, rotate the pressing plate to remove the pressing plate, and the crankcase can be removed;

[0034] 3. The second turntable is arranged eccentrically to the first turntable, and the detection component is arranged eccentrically to the second turntable. By driving the rotation of the first turntable through the second drive motor and the rotation of the second turntable through the third drive motor, the position of the detection component is adjusted, facilitating the detection component to detect different positions of the crankcase. Description of the Drawings

[0035] Figure 1 It is a schematic structural diagram of the crankcase pressure detection device of the present application.

[0036] Figure 2 It is a schematic structural diagram of the fixing component of the present application.

[0037] Figure 3 is Figure 2 The enlarged structural schematic diagram of part A in

[0038] Figure 4 It is a schematic structural diagram of the crankcase pressure detection device of the present application.

[0039] Figure 5 It is a schematic structural diagram of the crankcase of the present application.

[0040] Reference numerals: 1, detection platform; 11, bracket; 12, top plate; 13, protective cover; 2, fixing component; 21, housing; 211, placement hole; 22, supporting plate; 221, sinking groove; 23, first driving motor; 24, clamping member; 241, rotating shaft; 242, first gear; 243, swing arm; 244, extension rod; 245, pressing wheel; 25, second gear; 26, limiting block; 27, pressing component; 271, supporting sleeve; 272, pressing block; 273, elastic member; 274, pressing rod; 275, conical pushing block; 276, pressing plate; 3, detection component; 31, electric push rod; 32, pressure sensor; 33, pressure end; 4, adjusting component; 41, first turntable; 411, gear two; 42, second turntable; 421, gear four; 43, second driving motor; 44, third driving motor; 45, gear one; 46, gear three; 5, crankcase; 51, base; 52, crankshaft mounting seat; 53, supporting foot; 54, cylinder barrel. Detailed implementation manners

[0041] The following details the implementation manners of the present application, and the examples of the implementation manners are shown in the drawings.

[0042] In the description of this specification, the description referring to the terms "certain implementation manners", "one implementation manner", "some implementation manners", "schematic implementation manners", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the implementation manner or example are included in at least one implementation manner or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same implementation manner or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more implementation manners or examples.

[0043] A crankcase pressure detection device, referring to Figures 1 - 4, including a detection platform 1, on which a bracket 11 is provided, and on the bracket 11, a top plate 12 is provided; a fixing component 2, arranged on the detection platform 1 and used for fixing the crankcase 5, the fixing component 2 includes a housing 21 arranged on the detection platform 1, a placement hole 211 is opened at the top end of the housing 21, a supporting plate 22 is arranged inside the housing 21, a sinking groove 221 coaxial with the placement hole 211 is arranged on the supporting plate 22, and a plurality of clamping members 24 are rotatably arranged on the supporting plate 22 and around the sinking groove 221, and a first driving motor 23 for driving the clamping members 24 to rotate is arranged below the housing 21; a pressing component 27 is arranged in the sinking groove 221, and the pressing component 27 is pressed against the crankcase 5; an adjusting component 4, arranged on the top plate 12; a detection component 3, arranged on the adjusting component 4; the position of the detection component 3 is changed by the adjusting component 4.

[0044] Place the crankshaft mounting seat 52 of the crankcase 5 in the placement hole 211, drive the plurality of clamping members 24 to rotate through the first driving motor 23, so that the clamping members 24 abut against the outer wall of the crankshaft mounting seat 52, restricting the horizontal movement of the crankcase 5, and use the pressing component 27 to press against the crankcase 5 to restrict the vertical movement of the crankcase 5, ensuring the stability of the crankcase 5; adjust the position of the detection component 3 through the adjusting component 4 to realize the pressure detection of different positions of the crankcase 5.

[0045] Refer to Figure 2 and Figure 3 , the clamping member 24 includes a rotating shaft 241 rotatably connected to the supporting plate 22, one end of the rotating shaft 241 above the supporting plate 22 is fixedly connected with a swing arm 243, the swing arm 243 is horizontally arranged, an extension rod 244 is connected above one end of the swing arm 243 away from the rotating shaft 241, and a pressing wheel 245 is arranged at one end of the extension rod 244 away from the swing arm 243; one end of the rotating shaft 241 below the supporting plate 22 is provided with a first gear 242, and the output end of the first driving motor 23 is connected with a second gear 25 that cooperates with the first gear 242.

[0046] During use, the first driving motor 23 drives the rotating shaft 241 to rotate through gear transmission, thereby driving the swing of the swing arm 243. By the forward and reverse rotation of the first driving motor 23, the swing arm 243 swings inwards or outwards, driving the pressing wheel to abut against or separate from the outer wall of the crankshaft mounting seat 52, realizing the fixing or loosening of the crankshaft mounting seat 52, and thus realizing the rapid fixing of the crankcase 5.

[0047] The pressing assembly 27 includes a support sleeve 271 fixedly connected in the sunk groove 221. A plurality of abutting blocks 272 are slidably arranged on the circumferential side of the support sleeve 271. A slideway is penetratingly formed in the side wall of the support sleeve 271. One end of the abutting block 272 is slidably connected in the slideway. An elastic member 273 is arranged between the abutting block 272 and the support sleeve 271. The top end of the support sleeve 271 penetrates and is threadedly connected with a pressure rod 274. One end of the pressure rod 274 located inside the support sleeve 271 is provided with a conical pushing block 275. One end of the abutting block 272 located inside the support sleeve 271 is provided with an inclined surface abutting against the conical surface of the conical pushing block 275. The other end of the pressure rod 274 is provided with an adjusting portion. A pressing plate 276 is threadedly connected to one end of the pressure rod 274 close to the adjusting portion. The pressing plate 276 is used for pressing against the crankcase 5.

[0048] The crankshaft mounting seat 52 of the crankcase 5 is sleeved on the support sleeve 271. By rotating the adjusting portion, the pressure rod 274 moves up and down inside the support sleeve 271. When the pressure rod 274 moves downward, the conical pushing block 275 drives the abutting block 272 to move outward, so that the abutting block 272 abuts against the inner wall of the crankshaft mounting seat 52. At this time, the elastic member 273 is stretched. By rotating the pressing plate 276, the pressing plate 276 presses against the crankcase 5, thereby fixing the crankcase 5. When the pressure rod 274 moves upward, when the elastic member 273 releases elastic potential energy, the abutting block 272 moves toward the inside of the support sleeve 271. At the same time, rotate the pressing plate 276 to remove the pressing plate 276, and the crankcase 5 can be removed.

[0049] Refer to Figure 4 As shown in, the adjusting assembly 4 includes a first turntable 41 and a second turntable 42. The second turntable 42 penetrates and is rotatably arranged at the eccentric position of the first turntable 41. The detection assembly 3 is arranged at the eccentric position of the second turntable 42. The first turntable 41 penetrates and is rotatably connected to the top plate 12. A second driving motor 43 for driving the first turntable 41 is arranged below the top plate 12. A gear one 45 is arranged at the output end of the second driving motor 43. A gear two 411 engaged with the gear one 45 is arranged on the first turntable 41. A third driving motor 44 for driving the second turntable 42 to rotate is arranged on the first turntable 41. A gear three 46 is arranged at the output end of the third driving motor 44. A gear four 421 engaged with the gear three 46 is arranged on the second turntable 42.

[0050] The second turntable 42 is arranged at the eccentric position of the first turntable 41, and the detection assembly 3 is arranged at the eccentric position of the second turntable 42. By driving the rotation of the first turntable 41 by the second driving motor 43 and driving the rotation of the second turntable 42 by the third driving motor, the position of the detection assembly 3 is adjusted, which is convenient for the detection assembly 3 to detect different positions of the crankcase 5.

[0051] The detection component 3 includes an electric push rod 31 arranged at the eccentric position of the second turntable 42. A pressure sensor 32 is arranged at the telescopic end of the electric push rod 31, and a pressure end head 33 is arranged at the detection end of the pressure sensor 32. Through the telescopic movement of the electric push rod 31, the pressure end head 33 contacts the crankcase 5. The pressure sensor 32 detects the pressure exerted by the electric push rod 31 on the crankcase 5, and observes the change of the crankcase 5 to determine whether the crankcase 5 meets the requirements.

[0052] A limiting block 26 is arranged at the top end of the housing 21, and the limiting block 26 is connected to the support feet of the crankcase 5. Since the crankshaft mounting seat 52 is cylindrical, if only the crankshaft mounting seat 52 is fixed, the crankcase 5 will rotate. By connecting the support feet 53 of the crankcase 5 to the limiting block 26, the rotation of the crankcase 5 is restricted to ensure the stability of the crankcase 5.

[0053] A protective cover 13 covering the adjusting component 4 is arranged above the top plate 12. By arranging the protective cover 13 on the adjusting component 4, dust and other debris are prevented from entering the adjusting component 4 to ensure the normal operation of the adjusting component 4.

[0054] It further includes a control terminal. An inductor for detecting whether the crankcase 5 is placed in the placement hole 211 is arranged in the housing 21. The control terminal is electrically connected to the inductor, the first driving motor 23, the second driving motor 43, the third driving motor 44, and the electric push rod 31 respectively. Through the control terminal, the control of each component is realized, achieving fast fixation, rapid adjustment of the detection position, accurate application of pressure, and improving the detection efficiency.

[0055] A usage method of a pressure detection device for a crankcase 5 adopts the above pressure detection device, including the following steps:

[0056] S1: First, place the crankshaft mounting seat 52 in the placement hole 211, and connect the crankshaft support feet 53 to the limiting block 26;

[0057] S2: The inductor detects that the crankcase 5 is placed in the installation hole, transmits the signal to the control terminal, and the control terminal issues an instruction to control the first driving motor 23 to start and drive the clamping member 24 to abut against the outer wall of the crankshaft mounting seat 52, and then uses the pressing component 27 to press against the crankcase 5 to fix the crankcase 5;

[0058] S3: Through the control terminal, control the second driving motor 43 and the third driving motor 44 in the adjusting component 4 to drive the first turntable 41 and the second turntable 42 to rotate respectively, and adjust the position of the detection component 3;

[0059] S4: Through the control terminal, control the telescopic distance of the electric push rod 31, and detect the pressure magnitude through the pressure sensor 32 to complete the pressure detection.

[0060] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A crankcase (5) pressure detection device, characterized in that: It comprises a detection platform (1), wherein a bracket (11) is arranged on the detection platform (1), and a top plate (12) is arranged on the bracket (11); A fixing assembly (2) is arranged on the detection platform (1) and is used to fix the crankcase (5). The fixing assembly (2) comprises a shell (21) arranged on the detection platform (1). A placement hole (211) is provided at the top of the shell (21). A support plate (22) is arranged inside the shell (21). A sink groove (221) coaxially arranged with the placement hole (211) is arranged on the support plate (22). A plurality of clamping members (24) are rotatably arranged on the support plate (22) and located around the sink groove (221). A first driving motor (23) for driving the clamping members (24) to rotate is arranged below the shell (21); a clamping assembly (27) is arranged inside the sink groove (221), and the clamping assembly (27) is crimped onto the crankcase (5); An adjustment component (4) is arranged on the top plate (12); The detection component (3) is arranged on the adjustment component (4); the position of the detection component (3) is changed by the adjustment component (4).

2. The crankcase (5) pressure detection device according to claim 1, characterized in that: The clamping member (24) comprises a rotating shaft (241) rotatably connected to the supporting plate (22); one end of the rotating shaft (241) located above the supporting plate (22) is fixedly connected to a swing arm (243); the swing arm (243) is arranged horizontally; an extension rod (244) is connected above one end of the swing arm (243) away from the rotating shaft (241); and a clamping wheel (245) is arranged at one end of the extension rod (244) away from the swing arm (243); a first gear (242) is arranged at one end of the rotating shaft (241) located below the supporting plate (22); and an output end of the first driving motor (23) is connected to a second gear (25) matched with the first gear (242).

3. The crankcase (5) pressure detection device according to claim 1, characterized in that: The clamping assembly (27) comprises a supporting sleeve (271) fixedly connected to the sink groove (221); a plurality of clamping blocks (272) are slidably arranged on the circumference of the supporting sleeve (271); a slideway is penetrated through the side wall of the supporting sleeve (271); one end of the clamping block (272) is slidably connected to the slideway; an elastic member (273) is arranged between the clamping block (272) and the supporting sleeve (271); a top end of the supporting sleeve (271) penetrates and is threadedly connected to a clamping member (273); A rod (274), one end of the pressure rod (274) located in the support sleeve (271) is provided with a conical push block (275), one end of the clamping block (272) located in the support sleeve (271) is provided with an inclined surface that abuts against the conical surface of the conical push block (275), the other end of the pressure rod (274) is provided with an adjustment portion, and one end of the pressure rod (274) close to the adjustment portion is threadedly connected with a pressure plate (276), and the pressure plate (276) is used to be crimped onto the crankcase (5).

4. The crankcase (5) pressure detection device according to claim 1, characterized in that: The adjusting component (4) comprises a first rotating disk (41) and a second rotating disk (42), wherein the second rotating disk (42) penetrates through and is rotatably arranged at an eccentric position of the first rotating disk (41), and the detecting component (3) is arranged at an eccentric position of the second rotating disk (42); the first rotating disk (41) penetrates through and is rotatably connected to the top plate (12); a second driving motor (43) for driving the first rotating disk (41) is arranged below the top plate (12), a gear one (45) is arranged at the output end of the second driving motor (43), and a gear two (411) cooperating with the gear one (45) is arranged on the first rotating disk (41); a third driving motor (44) for driving the second rotating disk (42) to rotate is arranged on the first rotating disk (41), a gear three (46) is arranged at the output end of the third driving motor (44), and a gear four (421) cooperating with the gear three (46) is arranged on the second rotating disk (42).

5. The crankcase (5) pressure detection device according to claim 4, characterized in that: The detection assembly (3) comprises an electric push rod (31) arranged at an eccentric position of the second rotating disk (42), a pressure sensor (32) being arranged at the telescopic end of the electric push rod (31), and a pressure terminal (33) being arranged at the detection end of the pressure sensor (32).

6. The crankcase (5) pressure detection device according to claim 1, characterized in that: A limit block (26) is provided at the top end of the housing (21), and the limit block (26) is connected to a support leg of the crankcase (5).

7. The crankcase (5) pressure detection device according to claim 1, characterized in that: A protective cover (13) is arranged above the top plate (12) and covers the adjustment component (4).

8. The crankcase (5) pressure detection device according to claim 5, characterized in that: It also includes a control terminal. A sensor for detecting whether the crankcase (5) is placed in the placement hole (211) is arranged in the housing (21). The control terminal is electrically connected to the sensor, the first drive motor (23), the second drive motor (43), the third drive motor (44) and the electric push rod (31).

9. A method for using a crankcase (5) pressure detection device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: First, the crankshaft mounting seat (52) is placed in the placement hole (211), and the crankshaft supporting foot (53) is connected to the limit block (26); S2: The sensor detects that the crankcase (5) is placed in the mounting hole, and transmits a signal to the control terminal, which issues a command to control the first drive motor (23) to start and drive the clamping member (24) to abut against the outer wall of the crankshaft mounting seat (52), and then uses the clamping assembly (27) to press on the crankcase (5) to fix the crankcase (5); S3: controlling the second drive motor (43) and the third drive motor (44) in the adjustment component (4) through the control terminal to respectively drive the first rotating disk (41) and the second rotating disk (42) to rotate, thereby adjusting the position of the detection component (3); S4: Control the telescopic distance of the electric push rod (31) through the control terminal, detect the pressure through the pressure sensor (32), and complete the pressure detection.

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