Testing device for piston ring of marine dual-fuel engine

Abstract

The utility model relates to the technical field of marine engines, and discloses a marine dual-fuel engine piston ring testing device, which comprises a base and a workbench arranged at the top end of the base, a testing mechanism is arranged on the workbench, an adjusting and fixing mechanism is arranged above the testing mechanism, and a piston ring is arranged on the adjusting and fixing mechanism. The adjusting and fixing mechanism comprises a first supporting frame connected to the top end of the workbench, an electric telescopic rod is installed on the first supporting frame, by starting the electric telescopic rod, the outer wall of the output end of the electric telescopic rod can extrude a stress block, the extruded stress block drives a connecting rod to move, and the connecting rod is driven to move. Through movement of the connecting rod, the extrusion piece can be driven to expand outwards, meanwhile, the spring is driven to conduct extrusion, the inner wall of the piston ring can be extruded along with movement of the extrusion piece, the piston rings of different specifications and sizes can be limited and fixed through the installation mode, and therefore the applicability of the whole equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to marine engine technical field, concretely relates to a marine dual-fuel engine piston ring testing device. BACKGROUND

[0002] Under the background of global energy structure adjustment and increasingly strict environmental protection requirements, marine dual-fuel engine as a kind of efficient, environmental protection power device, gradually becomes the mainstream development direction in the field of marine power.It can use natural gas, fuel oil and other fuels as power source, while meeting the demand of marine power, significantly reducing pollutant emissions.

[0003] When detecting the piston ring, the piston ring needs to be fixed and installed, but most of the existing test equipment can only fix and install one size of the piston ring, which leads to the need to replace parts when testing other specifications of the piston ring, thereby greatly reducing the applicability of the test device.

[0004] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0005] To solve the above technical problems that the piston ring needs to be fixed and installed when detecting the piston ring, but most of the existing test equipment can only fix and install one size of the piston ring, which leads to the need to replace parts when testing other specifications of the piston ring, thereby greatly reducing the applicability of the test device, the basic concept of the technical scheme of the utility model is:

[0006] A marine dual-fuel engine piston ring testing device, comprising a base;

[0007] A workbench is installed at the top end of the base, a test mechanism is provided on the workbench, an adjusting and fixing mechanism is provided above the test mechanism, the adjusting and fixing mechanism comprises a first support frame connected to the top end of the workbench:

[0008] An electric telescopic rod is installed on the first support frame, a second support frame is connected to one side of the first support frame at the top end of the workbench, a connecting shaft is rotatably provided on the outer wall of the top of the second support frame, a rotating frame is installed on the outer wall of the connecting shaft, a through hole is formed in the inner wall of the rotating frame, a fixing ring is connected to the inner wall of the through hole, a spring is connected to one end of the fixing ring, an extrusion piece is connected to the end of the spring away from the fixing ring, a groove is formed in the outer wall of the extrusion piece, a rubber pad is installed in the inner wall of the groove, a connecting rod is movably provided in the inner wall of the fixing ring, a stress block is connected to one end of the connecting rod, and the end of the connecting rod away from the stress block is connected to the outer wall of one end of the extrusion piece.

[0009] As a preferred embodiment of the utility model, the test mechanism includes the motor installed on the outer wall of the workbench, the motor output end is connected with the lead screw, the outer wall of the lead screw is connected with the threaded block, the threaded block top is connected with the polishing block, the outer wall of the lead screw is connected with the transmission wheel, the transmission wheel outer wall is rotatably connected with the transmission belt, the first support frame outer wall is connected with the fixed rod, the fixed rod is rotatably provided with the rotating shaft, one end of the rotating shaft is connected with the gear, the transmission belt end away from the lead screw is rotatably arranged on the outer wall of the rotating shaft, and the outer wall of the rotating frame is connected with the gear ring.

[0010] As a preferred embodiment of the utility model, the connecting rod and the extrusion piece are four in number, and are evenly distributed on the rotating frame.

[0011] As a preferred embodiment of the utility model, the outer wall of the connecting rod is matched with the inner wall of the fixed ring.

[0012] As a preferred embodiment of the utility model, the extrusion piece is arc-shaped, and the four extrusion pieces are connected to form a whole annular shape.

[0013] As a preferred embodiment of the utility model, the workbench top is provided with a groove, and the end of the lead screw away from the motor is rotatably connected to the inner wall of the groove through a bearing.

[0014] As a preferred embodiment of the utility model, the outer wall of the threaded block is matched with the inner wall of the groove.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses, through starting electric telescopic link, its output end outer wall will produce extrusion to the stressed block, and the stressed block that is extruded drives the connecting rod to move, and the extrusion piece can be driven to expand outward through the movement of the connecting rod, and the spring is driven to extrude simultaneously, and the inner wall of the piston ring can be extruded through the movement of the extrusion piece, so that the piston ring of different specifications and sizes can be fixed in position through this mounting mode, thereby improving the applicability of the overall equipment.

[0017] The utility model discloses, through starting motor and driving the lead screw to reverse, thereby drive threaded block and polishing block and move to and fro, thereby to piston ring is carried out vertical polishing effect, through the rotation of the lead screw, drive transmission belt and rotate, can drive gear and rotate through the rotation of the gear, drive gear ring and rotate through the rotation of the gear ring, and this can drive rotating frame and rotate, thereby drive piston ring and rotate evenly, make piston ring outer wall can be evenly subjected to the friction effect of polishing block, thereby can improve the friction test effect of piston ring.

[0018] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] In the drawings:

[0020] Figure 1 is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 is a schematic diagram of the top-down structure of the present application;

[0022] Figure 3 is a schematic diagram of the adjusting and fixing mechanism structure of the present application;

[0023] Figure 4 is a schematic diagram of the adjusting and fixing mechanism structure of the present application;

[0024] Figure 5 is a schematic diagram of the testing mechanism structure of the present application.

[0025] In the drawings: 1, base; 2, workbench; 31, adjusting and fixing mechanism; 311, first support frame; 312, electric telescopic rod; 313, second support frame; 314, connecting shaft; 315, rotating frame; 316, fixing ring; 317, spring; 318, extrusion piece; 319, rubber pad; 3110, stress block; 3111, connecting rod; 32, testing mechanism; 321, motor; 322, screw rod; 323, threaded block; 324, polishing block; 325, fixing rod; 326, gear; 327, transmission belt; 328, toothed ring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and the following embodiments are used to illustrate the present application.

[0027] As Figures 1 to 5As shown, a marine dual-fuel engine piston ring testing device, including a base 1, a workbench 2 installed on the top end of the base 1, a testing mechanism 32 provided on the workbench 2, an adjusting and fixing mechanism 31 provided above the testing mechanism 32, the adjusting and fixing mechanism 31 comprising a first support frame 311 connected to the top end of the workbench 2, a motor telescopic rod 312 installed on the first support frame 311, a second support frame 313 connected to the top end of the workbench 2 on one side of the first support frame 311, a connecting shaft 314 rotatably provided on the top outer wall of the second support frame 313, a rotating frame 315 installed on the outer wall of the connecting shaft 314, a through hole is formed in the inner wall of the rotating frame 315, a fixed ring 316 is connected to the inner wall of the through hole, one end of the fixed ring 316 is connected to a spring 317, the spring 317 is connected to a pressing piece 318 away from the fixed ring 316, a groove is formed in the outer wall of the pressing piece 318, and a rubber pad 319 is installed on the inner wall of the groove. The inner wall of the fixed ring 316 movably provides a connecting rod 3111, one end of the connecting rod 3111 is connected to a stress block 3110, and the other end of the connecting rod 3111 away from the stress block 3110 is connected to the outer wall of one end of the pressing piece 318.

[0028] Further, the number of connecting rods 3111 and pressing pieces 318 is four, and the connecting rods 3111 and the pressing pieces 318 are evenly distributed on the rotating frame 315, so that the rotating frame 315 can be evenly covered, thereby ensuring the close fit between the piston ring.

[0029] Further, the outer wall of the connecting rod 3111 is matched with the inner wall of the fixed ring 316, so that the stability of the connecting rod 3111 during movement can be ensured.

[0030] Further, the pressing piece 318 is arc-shaped, and the four pressing pieces 318 are connected to form a complete circular ring, so that the inner wall of the piston ring can be more closely fitted, and the piston ring can be prevented from deforming during testing.

[0031] The testing mechanism 32 comprises a motor 321 installed on the outer wall of the workbench 2, a lead screw 322 connected to the output end of the motor 321, a threaded block 323 threadedly connected to the outer wall of the lead screw 322, a polishing block 324 connected to the top of the threaded block 323, a transmission wheel connected to the outer wall of the lead screw 322, a transmission belt 327 rotatably connected to the outer wall of the transmission wheel, a fixed rod 325 rotatably provided on the outer wall of the transmission wheel, a transmission shaft connected to one end of the fixed rod 325, a gear 326 connected to one end of the transmission shaft, the other end of the transmission belt 327 away from the lead screw 322 is rotatably provided on the outer wall of the transmission shaft, and a gear ring 328 is connected to the outer wall of the rotating frame 315.

[0032] Further, a recess is formed in the top end of the workbench 2, and the other end of the lead screw 322 away from the motor 321 is rotatably connected to the inner wall of the recess.

[0033] Further, the outer wall of the threaded block 323 is matched with the inner wall of the groove, so that the threaded block 323 can be limited, and the stability of the threaded block 323 during movement can be ensured.

[0034] The implementation principle of the marine dual-fuel engine piston ring testing device of the embodiment is as follows: first, the piston ring is sleeved on the outer wall of the rotating frame 315, and then the electric telescopic rod 312 is started, the output end of the electric telescopic rod 312 will be extended, and the outer wall of the output end will contact and extrude the stress block 3110, the stress block 3110 subjected to extrusion will move outward, at this time, the stress block 3110 will drive the connecting rod 3111 to move, and the connecting rod 3111 will drive the extrusion piece 318 connected at the other end to move during movement, so that the four extrusion pieces 318 will expand outward, thereby contacting and extruding the inner wall of the piston ring, so that the movement of the extrusion piece 318 will drive the spring 317 to be stretched, at this time, the four extrusion pieces 318 are extruded and limited, the limit and fixation of the piston ring are completed, and the outer wall of the rubber pad 319 will contact the inner wall of the piston ring during the outward movement of the extrusion piece 318, so that the friction between the piston ring and the extrusion piece 318 can be increased, so that the fixation and installation of the piston ring can be further improved, and different specifications and sizes of the piston ring can be limited and fixed by this installation mode, so that the applicability of the whole equipment can be improved.

[0035] After the piston ring is fixed, the motor 321 is started, the output end of the motor 321 will drive the screw rod 322 to rotate forward and backward, the threaded block 323 will move left and right reciprocatingly with the rotation of the screw rod 322, so that the threaded block 323 drives the polishing block 324 to move left and right, and the outer wall of the piston ring is subjected to vertical friction, and the transmission belt 327 is rotated with the rotation of the screw rod 322, the gear 326 is rotated with the rotation of the transmission belt 327, the gear ring 328 is rotated with the rotation of the gear 326, so that the rotating frame 315 is rotated by the gear ring 328, thereby the piston ring is rotated, so that the outer wall of the piston ring can be uniformly subjected to friction of the polishing block 324, and the friction testing effect of the piston ring can be improved.

Claims

1. A marine dual-fuel engine piston ring testing device, comprising a base (1); The workbench (2) is arranged at the top end of the base (1), characterized in that, A testing mechanism (32) is arranged on the workbench (2), and an adjusting and fixing mechanism (31) is arranged above the testing mechanism (32); the adjusting and fixing mechanism (31) comprises a first support frame (311) connected to the top end of the workbench (2): An electric telescopic rod (312) is arranged on the first support frame (311); a second support frame (313) is connected to one side of the first support frame (311) at the top end of the workbench (2); a connecting shaft (314) is rotatably arranged on the outer wall of the top of the second support frame (313); a rotating frame (315) is arranged on the outer wall of the connecting shaft (314); a through hole is formed in the inner wall of the rotating frame (315); a fixing ring (316) is connected to the inner wall of the through hole; a spring (317) is connected to one end of the fixing ring (316); an extrusion piece (318) is connected to the end of the spring (317) away from the fixing ring (316); a groove is formed in the outer wall of the extrusion piece (318); a rubber pad (319) is arranged in the groove; a connecting rod (3111) is movably arranged in the inner wall of the fixing ring (316); a stress block (3110) is connected to one end of the connecting rod (3111); and the end of the connecting rod (3111) away from the stress block (3110) is connected to the outer wall of one end of the extrusion piece (318).

2. A marine dual fuel engine piston ring testing device according to claim 1, characterized in that The testing mechanism (32) comprises a motor (321) arranged on the outer wall of the workbench (2); a lead screw (322) is connected to the output end of the motor (321); a threaded block (323) is threadedly connected to the outer wall of the lead screw (322); a polishing block (324) is connected to the top of the threaded block (323); a transmission wheel is connected to the outer wall of the lead screw (322); the transmission wheel is rotatably connected to a transmission belt (327); a fixed rod (325) is connected to the outer wall of the first support frame (311); a shaft is rotatably arranged on the fixed rod (325); a gear (326) is connected to one end of the shaft; the end of the transmission belt (327) away from the lead screw (322) is rotatably arranged on the outer wall of the shaft; and a gear ring (328) is arranged on the outer wall of the rotating frame (315).

3. A marine dual fuel engine piston ring testing device according to claim 1, characterized in that The number of the connecting rods (3111) and the extrusion pieces (318) is four; and the connecting rods (3111) and the extrusion pieces (318) are evenly distributed on the rotating frame (315).

4. A marine dual fuel engine piston ring testing device according to claim 1, characterized in that The outer wall of the connecting rod (3111) is matched with the inner wall of the fixing ring (316).

5. A marine dual fuel engine piston ring testing device according to claim 1, characterized in that, The extrusion piece (318) is in the shape of a circular arc; and the four extrusion pieces (318) are connected to form a whole circular ring.

6. A marine dual fuel engine piston ring testing device according to claim 2, characterized in that A groove is formed in the top end of the workbench (2); and the end of the lead screw (322) away from the motor (321) is rotatably connected to the inner wall of the groove through a bearing.

7. A marine dual fuel engine piston ring testing device according to claim 2, characterized in that The outer wall of the threaded block (323) is matched with the inner wall of the groove.

Images