An ignition test device capable of switching engine models

Abstract

The present invention discloses an ignition test device capable of switching engine models, and relates to the technical field of engine testing, including a side plate and an ignition test machine, wherein one side plate is fixedly connected to the ignition test machine, and two side plates are provided, and the sides of the two side plates close to each other are fixedly connected to fixing rings by bolts, and the sides of the two fixing rings close to each other are fixedly connected to four fixing seats, and a transmission ring 1 is fixedly connected to the fixing seat. Through the effect of the stabilizing wheel rolling in the stabilizing groove, the movement of the base can be supported, and the situation of unstable support after the engine is placed on the fixing pin rod is prevented, so as to achieve the purpose of safely transporting the engine to the vicinity of the ignition test machine, avoid the situation that the engine falls due to the tilt of the engine when turning when using a trolley to transport the engine, and reduce the danger of manually transporting the engine by a trolley. In addition, unnecessary maintenance costs caused by the engine falling are also reduced.

Description

Technical Field

[0001] The invention relates to the technical field of engine testing, and in particular to an ignition testing device capable of switching engine models. Background Art

[0002] On the engine production line, in order to ensure that each engine can pass the production line, the engine needs to be subjected to cold testing or independent ignition testing, namely cold testing and hot testing.

[0003] In the process of transporting the engine, the existing method is to transport the engine that needs ignition test to the bottom of the test device by a trolley, and then connect the transmission shaft and pipelines on the ignition test device to the engine, including fuel pipes, coolant pipes, exhaust pipes, etc. In the process of manually transporting the engine by a trolley, due to the large size and heavy weight of the engine, it is not easy to control it manually during turning. Under normal circumstances, the engine is generally fixed in position with the fixed pin rod on the trolley. When turning, the engine is prone to tilt due to inertia, and the manual transportation method is unstable. When the trolley drives the engine to turn, it is easy to cause the engine to tilt, which causes the trolley and the engine to tip over. The engine falling to the ground will cause damage to the engine, increasing unnecessary maintenance costs. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an ignition test device capable of switching engine models.

[0005] The technical solution is as follows:

[0006] An ignition test device capable of switching engine models comprises a side plate and an ignition test machine, wherein two side plates are provided, a fixing platform is fixedly provided on the ignition test machine, one of the side plates is fixedly connected to the fixing platform, a fixing ring is fixedly connected to each other on one side of the two side plates by bolts, four fixing seats are fixedly connected to each other on one side of the two fixing rings, a transmission ring 1 is fixedly connected to each other on the four fixing seats on the same fixing ring, a fixing plate is fixedly connected to each side of the two side plates that are close to each other, two symmetrically arranged drive shafts are rotatably connected between the two fixing plates, a transmission ring 2 is fixedly connected to each other on the two fixing plates, and a transmission assembly is also included;

[0007] The transmission component includes a transmission belt that is connected between two driving shafts, the driving shaft is connected to the output shaft of an external driving motor, and a plurality of traction blocks are evenly and fixedly connected to the outer surface of the transmission belt, and each traction block is rotatably connected to a moving block at one end away from the transmission belt, and two first rollers are symmetrically rotatably connected to the moving block, and a side of the first roller away from the moving block is rotatably connected to a connecting plate 1, and a side of the connecting plate 1 away from the first roller is rotatably connected to two symmetrically arranged second rollers, a side of the moving block away from the traction block is fixedly connected to a stabilizing plate, and a stabilizing wheel is symmetrically rotatably connected to the stabilizing plate, and a stabilizing groove is provided on the outer surfaces of the two fixed rings, the first roller rolls on the inner side of an adjacent transmission ring 1, the second roller rolls on the outer surface of an adjacent transmission ring 2, and the stabilizing wheel rolls in the adjacent stabilizing groove, and the outer ring surfaces of the first roller, the second roller and the stabilizing wheel are all provided with a rubber layer, and a transfer component for placing and fixing the engine is provided on the stabilizing plate.

[0008] Furthermore, the transfer component includes a base fixedly connected to the side of the stable plate away from the moving block, a permanent magnet is arranged in the base, and a tray is magnetically arranged on the side of the base away from the stable plate. The material of the tray is metal iron, and a plurality of fixing pins are fixedly connected to the side of the tray away from the base by bolts, and two slots are provided on the side of the tray close to the base.

[0009] Furthermore, it also includes a lifting assembly, which includes two fixed rods fixedly connected to the upper surface of the fixed platform, the two fixed rods are symmetrically arranged, the tops of the two fixed rods are fixedly connected with electric slide rails, the two electric slide rails are slidably connected with moving frames, the bottoms of the two moving frames are fixedly connected with electric push rods, a connecting plate 2 is fixedly connected between the telescopic ends of the two electric push rods, two lifting plates are symmetrically fixedly connected to the connecting plate 2, a spring telescopic rod is fixedly connected to the upper surface of the fixed platform, the lifting plate is adapted to the shape of the tray slot, a long groove adapted to the shape of the spring telescopic rod is provided at the bottom of the lifting plate, and the end of the spring telescopic rod away from the fixed platform is slidably connected to the long groove at the bottom of the lifting plate.

[0010] Furthermore, two limit blocks are fixedly connected to the upper surface of the lifting plate, and limit grooves matching the limit blocks on the lifting plate are provided in the notches of the tray, and the limit blocks are plugged into and matched with adjacent limit grooves.

[0011] Furthermore, a protection component is provided on the fixed platform, and the protection component includes a lifting groove opened on the fixed platform, a stabilizing plate is fixedly connected inside the lifting groove, convex plates are fixedly connected on both sides of the bottom of the fixed platform, and multi-section electric telescopic rods are fixedly connected on the upper surfaces of the convex plates, and connecting rods are fixedly connected on the telescopic shafts of the two multi-section electric telescopic rods, a first protection plate is fixedly connected between the two connecting rods, a second protection plate is fixedly connected to the tops of the two electric slide rails, a top plate is fixedly connected between the tops of the two second protection plates, and the first protection plate is slidably arranged inside the stabilizing plate.

[0012] Furthermore, an exhaust hole is opened on the top of the top plate, an exhaust pipe corresponding to the exhaust hole is fixedly connected to the top plate, and an air pump is arranged on the exhaust pipe.

[0013] The beneficial effects of the present invention are as follows:

[0014] The stabilizing plate drives the stabilizing wheel to roll in the stabilizing groove. The stabilizing wheel rolls in the stabilizing groove to support the movement of the base, preventing the engine from being unstable after being placed on the fixed pin rod, thereby achieving the purpose of safely transporting the engine to a place close to the ignition test machine, avoiding the use of a trolley to transport the engine, which may cause the engine to fall due to the tilt of the engine when turning, reducing the danger of manually transporting the engine with a trolley, and also reducing unnecessary maintenance costs caused by the engine falling;

[0015] The lifting plate drives the tray to move synchronously, and the tray drives the engine to move synchronously through the fixed pin rod. The engine will move to the bottom of the top plate, and then the engine is transported. It is convenient for the staff to plug the pipes on multiple ignition test machines onto the engine, so as to test the engine in and out of ignition, reduce manual handling, avoid the situation where manual handling with a trolley needs to be repeatedly aligned with the track on the ignition tester, and improve the efficiency of the engine ignition test docking test;

[0016] When the first protective plate moves to the highest position of the stabilizing plate, the first protective plate will combine with the second protective plate to form a semi-wrapped effect on the engine. If the pipe of the ignition test machine becomes loose when connected to the engine, it can avoid the problem of oil spraying to the outside during the engine ignition test, thereby protecting the safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a three-dimensional schematic diagram of the fixing seat, the transmission ring 1 and the transmission ring 2 of the present invention;

[0019] Figure 3It is a three-dimensional schematic diagram of the first roller and the second roller and other components of the present invention;

[0020] Figure 4 It is a three-dimensional schematic diagram of components such as a drive shaft and a traction block of the present invention;

[0021] Figure 5 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 6 It is a three-dimensional schematic diagram of the fixing platform, side panels, lifting panels and other components of the present invention;

[0023] Figure 7 It is a three-dimensional schematic diagram of the lifting tank and the stabilizing plate and other components of the present invention;

[0024] Figure 8 It is a cross-sectional perspective schematic diagram of the first protection plate and the exhaust pipe and other components of the present invention;

[0025] Fig. 9 It is a three-dimensional schematic diagram of components such as a stabilizing plate, a connecting rod and a first protective plate of the present invention;

[0026] Fig.10 It is a three-dimensional schematic diagram of the bottom structure of the tray of the present invention.

[0027] Among them, the accompanying drawings in the present invention are:

[0028] 1, side plate; 11, fixing ring; 12, fixing seat; 13, transmission ring 1; 14, driving shaft; 15, fixing plate; 16, transmission ring 2;

[0029] 21, transmission belt; 22, traction block; 23, moving block; 24, first roller; 25, connecting plate 1; 26, second roller; 27, stabilizing plate; 28, stabilizing wheel; 29, stabilizing groove;

[0030] 31, base; 32, tray; 33, fixing pin rod;

[0031] 41, fixed platform; 42, fixed rod; 43, electric slide rail; 44, mobile frame; 45, electric push rod; 46, connecting plate 2; 47, lifting plate; 48, spring telescopic rod;

[0032] 51, lifting slot; 52, stabilizing plate; 53, convex plate; 54, multi-section electric telescopic rod; 55, connecting rod; 56, first protective plate; 57, second protective plate; 58, top plate;

[0033] 6. Exhaust pipe; 7. Ignition test machine. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] The embodiments provided by the present invention will be described in detail below:

[0036] like Figures 1 to 5 As shown, an ignition test device with switchable engine models includes a side panel 1 and an ignition test machine 7, two side panels 1 are provided, a fixing platform 41 is fixedly provided on the ignition test machine 7, one of the side panels 1 is fixedly connected to the fixing platform 41, and the sides of the two side panels 1 close to each other are fixedly connected with a fixing ring 11 by bolts, and the sides of the two fixing rings 11 close to each other are fixedly connected with four fixing seats 12, and a transmission ring 13 is fixedly connected to the four fixing seats 12 on the same fixing ring 11, and a fixing plate 15 is fixedly connected to the sides of the two side panels 1 close to each other, and two symmetrically arranged drive shafts 14 are rotatably connected between the two fixing plates 15, and a transmission ring 2 16 is fixedly connected to the two fixing plates 15, and a transmission component for traction transmission is also included.

[0037] The transmission assembly includes a transmission belt 21 which is connected between the two driving shafts 14, and the two driving shafts 14 are connected to the output shaft of the external driving motor, the two driving shafts 14 are fixedly provided with pulleys, a transmission belt 21 is provided between the two pulleys, a plurality of traction blocks 22 are evenly and fixedly connected to the outer surface of the transmission belt 21, and each traction block 22 is rotatably connected to a moving block 23 at one end away from the transmission belt 21, and both ends of the moving block 23 are rotatably connected to a first roller 24, the first roller 24 rolls on the inner side of the adjacent transmission ring 13, the side of the first roller 24 away from the moving block 23 is rotatably connected to a connecting plate 1 25, and the side of the connecting plate 1 25 away from the first roller 24 is rotatably connected to two symmetrically arranged second rollers 26, the second rollers 26 roll on the outer surface of the adjacent transmission ring 16, and the first roller The outer ring surfaces of the wheel 24 and the second roller 26 are both provided with a rubber layer, which is used to be squeezed and deformed when moving to the arc of the transmission ring 13 and the transmission ring 2 16, so as to avoid the device from getting stuck. The side of the moving block 23 away from the traction block 22 is fixedly connected with a stabilizing plate 27, and both ends of the stabilizing plate 27 are rotatably connected with two stabilizing wheels 28. The outer surfaces of the two fixed rings 11 are each provided with a circle of stabilizing grooves 29, and the stabilizing wheels 28 roll in adjacent stabilizing grooves 29 to stabilize the movement of the moving block 23. The outer ring surfaces of the stabilizing wheels 28 are also provided with a rubber layer, which is used to maintain full contact when the stabilizing wheels 28 roll in the stabilizing grooves 29. At the same time, in cooperation with the first roller 24 and the second roller 26 rolling on the transmission ring 13 and the transmission ring 2 16 respectively, the moving block 23 can move along the shape trajectory of the side plate 1.

[0038] like Figures 1 to 4 and Fig.10 As shown, a transfer component for transferring the engine is provided on the stabilizing plate 27, and the transfer component includes a base 31 fixedly connected to the side of the stabilizing plate 27 away from the moving block 23, and the base 31 has a built-in permanent magnet, and a tray 32 is magnetically provided on the side of the base 31 away from the stabilizing plate 27, and the material of the tray 32 is metal iron, and two symmetrical grooves are provided on the side of the tray 32 close to the base 31, and a plurality of fixing pins 33 are fixedly connected to the side of the tray 32 away from the base 31 by bolts, and the plurality of fixing pins 33 have different lengths and are used to adapt to engines of different models, and can support and fix the engine.

[0039] like Figure 1 and Figures 6 to 10As shown, a lifting assembly is also included, which includes two fixed rods 42 fixedly connected to the upper surface of the fixed platform 41, the two fixed rods 42 are symmetrically arranged, the tops of the two fixed rods 42 are fixedly connected to electric slide rails 43, the two electric slide rails 43 are slidably connected to mobile frames 44, the bottoms of the two mobile frames 44 are fixedly connected to electric push rods 45, and the telescopic ends of the two electric push rods 45 are commonly fixedly connected to a connecting plate 2 46, and two lifting plates 47 are symmetrically fixedly connected to the connecting plate 2 46, and two limit blocks are fixedly connected to the upper surface of the lifting plate 47, and the lifting plate 47 is adapted to the shape of the notch of the tray 32, and the notch of the tray 32 is A limit groove is provided that matches the limit block on the lifting plate 47, and the limit block and the limit groove can be plugged together. When the limit block and the limit groove fit together, the tray 32 can be limited and fixed. A spring telescopic rod 48 corresponding to the position of the lifting plate 47 is fixedly connected to the upper surface of the fixed platform 41. The spring telescopic rod 48 includes a fixed end, a telescopic end and a spring. The spring is arranged between the fixed end and the telescopic end. The fixed end is fixedly connected to the upper surface of the fixed platform 41. A long groove that matches the shape of the top of the telescopic end is provided at the bottom of the lifting plate 47. The top of the telescopic end of the spring telescopic rod 48 is slidably connected to the long groove at the bottom of the lifting plate 47 for supporting the lifting plate 47.

[0040] like Figure 1 and Figures 6 to 9 As shown, a protection component is provided on the fixed platform 41, and the protection component includes a lifting groove 51 opened on the fixed platform 41, and a stabilizing plate 52 is fixedly connected inside the lifting groove 51, and convex plates 53 are fixedly connected to both sides of the bottom of the fixed platform 41, and the upper surfaces of the two convex plates 53 are fixedly connected to multi-section electric telescopic rods 54, and the telescopic shafts of the two multi-section electric telescopic rods 54 are fixedly connected to connecting rods 55, and a first protection plate 56 is fixedly connected between the two connecting rods 55, and the first protection plate 56 slides inside the stabilizing plate 52, and the tops of the two electric slide rails 43 are fixedly connected to second protection plates 57, and the first protection plate 56 and the second protection plate 57 are both composed of a frame and a transparent glass plate, and a top plate 58 is fixedly connected between the tops of the two second protection plates 57, and an exhaust hole is opened on the top of the top plate 58, and an exhaust pipe 6 corresponding to the exhaust hole is fixedly connected to the upper surface of the top plate 58, and an air pump is provided on the exhaust pipe 6, and the air outlet pipe of the air pump is connected to the exhaust pipe 6, and the exhaust pipe 6 can be externally connected to the exhaust gas purification equipment.

[0041] In combination with the above preferred embodiments, the following is the entire working process and working principle of the above embodiments:

[0042] The transfer assembly and the transmission assembly cooperate with the transfer engine:

[0043] The staff places the engine to be tested on an upward fixing pin 33, and connects and fixes the fixing pin 33 to the engine through bolts, thereby achieving a fixing effect on the engine. In addition, the lengths of the fixing pin 33 are different, so that they can be adapted to engines of different models, so as to achieve the purpose of fixing engines of different models;

[0044] After the engine is fixed, the staff can start the external drive motor to drive the drive shaft 14 to rotate. The two drive shafts 14 can drive the transmission belts 21 thereon to transmit, and the transmission belts 21 drive the traction block 22 to move synchronously, and the traction block 22 drives the moving block 23 to move synchronously. The moving block 23 drives the first roller 24 to roll on the inside of the transmission ring 13, and the first roller 24 makes the second roller 26 roll on the outside of the transmission ring 2 16 through the connecting plate 1 25. Through this cooperation, the moving block 23 can move stably, and through the rolling of the first roller 24 and the second roller 26, friction can be reduced, thereby avoiding the problem of the moving block 23 moving suddenly due to friction in the conventional limit.

[0045] The moving block 23 will also drive the stabilizing plate 27 to move synchronously, and the stabilizing plate 27 drives the base 31 and the engine on the fixing pin 33 to move synchronously. In addition, the stabilizing plate 27 also drives the stabilizing wheel 28 to roll in the stabilizing groove 29. The stabilizing wheel 28 rolls in the stabilizing groove 29, so that the movement of the base 31 can be supported to prevent the engine from being placed on the fixing pin 33 and being unstable. The purpose of safely transporting the engine to a place close to the ignition test machine 7 is achieved, and the use of a trolley to transport the engine is avoided, which may cause the engine to fall due to the tilt of the engine when turning, reduces the risk of manually transporting the engine by a trolley, and also reduces unnecessary maintenance costs caused by the engine falling.

[0046] The lifting assembly cooperates with the transfer assembly to lift the engine:

[0047] When the tray 32 moves to the position corresponding to the lifting plate 47, the driving shaft 14 is controlled to stop rotating, thereby stopping the transmission and transportation of the engine, and then the electric slide rail 43 is controlled to drive the moving frame 44 to move to the side close to the fixed pin 33. The moving frame 44 drives the connecting plate 2 46 to move synchronously through the electric push rod 45, and the connecting plate 2 46 drives the lifting plate 47 to move to the side close to the tray 32. When the lifting plate 47 continues to move, it will be inserted into the notch at the bottom of the tray 32. At this time, the telescopic shaft of the electric push rod 45 can be controlled by the controller to extend, and the electric push rod 45 drives the lifting plate 47 to move upward through the connecting plate 2 46. The lifting plate 47 will contact the notch at the bottom of the tray 32, and the limit block on the lifting plate 47 will be inserted into the limit groove of the notch of the tray 32. After continuing to move upward, the tray 32 can be lifted. When the limit block is embedded in the limit groove to achieve plug-in cooperation, it can The tray 32 is limited and fixed to prevent the tray 32 from shaking on the lifting plate 47. The tray 32 lifts the engine through the fixing pin rod 33, so that the tray 32 is no longer magnetically attracted by the built-in permanent magnet of the base 31, and then the electric slide rail 43 drives the movable frame 44 to move to the side away from the base 31. The movable frame 44 drives the connecting plate 2 46 to move synchronously through the electric push rod 45. The connecting plate 2 46 drives the tray 32 to move synchronously through the lifting plate 47. The tray 32 drives the engine to move synchronously through the fixing pin rod 33. The engine will move to the bottom of the top plate 58, and then the transportation of the engine is completed, which can facilitate the staff to plug the pipe of the ignition test machine 7 onto the engine for ignition test of the engine, reduce manual transportation, avoid the situation where manual transportation using a trolley needs to be repeatedly aligned with the track on the ignition tester, and improve the efficiency of the engine ignition test docking test.

[0048] When the lifting plate 47 lifts the engine, the spring inside the spring telescopic rod 48 will push up the telescopic end to support the lifting plate 47, preventing the lifting plate 47 from deforming and tilting after the engine is lifted and transported by the lifting plate 47, thereby preventing the engine from falling.

[0049] Protection components for engine ignition test process protection:

[0050] When the engine moves to the bottom of the top plate 58, the telescopic axis of the multi-section electric telescopic rod 54 can be controlled to extend upward. The multi-section electric telescopic rod 54 enables the first protective plate 56 to move upward inside the stabilizing plate 52 through the connecting rod 55. When the first protective plate 56 moves to the highest position of the stabilizing plate 52, the first protective plate 56 will be combined with the second protective plate 57 to form a semi-wrapped effect on the engine. If the pipeline of the ignition test machine 7 becomes loose when connected to the engine, it can avoid the problem of oil spraying to the outside during the engine ignition test, thereby protecting the safety of the staff.

[0051] Exhaust pipe 6 collects exhaust gas:

[0052] When the engine is ignited, the engine will produce exhaust gas. If there is leakage of exhaust gas, the first protective plate 56, the second protective plate 57 and the top plate 58 half-wrap the engine, so that the exhaust gas can be concentrated. Since an exhaust pump is provided on the exhaust pipe 6, the exhaust pump can be controlled to suck the exhaust gas through the exhaust pipe 6 and discharge it to an external exhaust gas purification device for purification, thereby avoiding the exhaust gas from being discharged into the air.

[0053] Transfer after engine ignition test:

[0054] After the engine ignition test, the telescopic axis of the multi-section electric telescopic rod 54 is controlled to retract downward, and the multi-section electric telescopic rod 54 makes the first protective plate 56 move downward inside the stabilizing plate 52 through the connecting rod 55. When the first protective plate 56 moves to the lowest position of the stabilizing plate 52, the electric slide rail 43 is controlled to drive the moving frame 44 to move to the side close to the first protective plate 56. The moving frame 44 drives the connecting plate 2 46 to move synchronously through the electric push rod 45. The connecting plate 2 46 drives the supported engine to move synchronously through the lifting plate 47, so that the engine and the tray 32 move to the top of the base 31. At this time, the telescopic axis of the electric push rod 45 is controlled to retract downward. At this time, the electric push rod 45 will The second connecting plate 46 drives the lifting plate 47 to move downward, and the lifting plate 47 causes the tray 32 to move downward, so that the tray 32 is placed on the base 31 and is magnetically fixed to the base 31, and the electric push rod 45 continues to drive the lifting plate 47 to move downward, so that the limit block of the lifting plate 47 is disengaged from the plug-in relationship with the limit groove, and then the electric slide rail 43 drives the moving frame 44 to move to the side away from the base 31, and the moving frame 44 drives the second connecting plate 46 to drive the lifting plate 47 to move synchronously through the electric push rod 45, so that the lifting plate 47 moves to the bottom of the top plate 58, and then the transmission assembly is started again, and the transmission assembly continues to transport the engine through the transfer assembly, and then the next engine is ignited and tested.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An ignition test device capable of switching engine models, characterized in that: The device comprises a side plate (1) and an ignition test machine (7), wherein two side plates (1) are provided, a fixing table (41) is fixedly provided on the ignition test machine (7), one of the side plates (1) is fixedly connected to the fixing table (41), a fixing ring (11) is fixedly connected to the sides of the two side plates (1) close to each other by bolts, four fixing seats (12) are fixedly connected to the sides of the two fixing rings (11) close to each other, a transmission ring 1 (13) is fixedly connected to the four fixing seats (12) on the same fixing ring (11), a fixing plate (15) is fixedly connected to the sides of the two side plates (1) close to each other, two symmetrically arranged drive shafts (14) are rotatably connected between the two fixing plates (15), and a transmission ring 2 (16) is fixedly connected to the two fixing plates (15), and a transmission assembly is also included; The transmission assembly comprises a transmission belt (21) which is transmission-connected between two drive shafts (14), the drive shaft (14) being connected to the output shaft of an external drive motor, a plurality of traction blocks (22) being evenly and fixedly connected to the outer surface of the transmission belt (21), each traction block (22) being rotationally connected to a moving block (23) at one end away from the transmission belt (21), the moving block (23) being symmetrically rotatably connected to two first rollers (24), a side of the first roller (24) away from the moving block (23) being rotationally connected to a connecting plate 1 (25), a side of the connecting plate 1 (25) away from the first roller (24) being rotationally connected to two symmetrically arranged second rollers (26), A stabilizing plate (27) is fixedly connected to a side of the moving block (23) away from the traction block (22), a stabilizing wheel (28) is symmetrically rotatably connected to the stabilizing plate (27), the outer surfaces of the two fixed rings (11) are provided with stabilizing grooves (29), the first roller (24) rolls on the inner side of the adjacent transmission ring 1 (13), the second roller (26) rolls on the outer surface of the adjacent transmission ring 2 (16), the stabilizing wheel (28) rolls in the adjacent stabilizing grooves (29), the outer ring surfaces of the first roller (24), the second roller (26) and the stabilizing wheel (28) are all provided with a rubber layer, and a transfer assembly for placing and fixing the engine is provided on the stabilizing plate (27).

2. The ignition test device capable of switching engine models according to claim 1, characterized in that: The transfer assembly comprises a base (31) fixedly connected to a side of a stable plate (27) away from a moving block (23), a permanent magnet being arranged in the base (31), a tray (32) being magnetically arranged on a side of the base (31) away from the stable plate (27), the material of the tray (32) being metal iron, a side of the tray (32) away from the base (31) being fixedly connected to a plurality of fixing pins (33) by bolts, and a side of the tray (32) close to the base (31) being provided with two notches.

3. The ignition test device capable of switching engine models according to claim 2, characterized in that: The lifting assembly also includes two fixed rods (42) fixedly connected to the upper surface of the fixed platform (41), the two fixed rods (42) are symmetrically arranged, the tops of the two fixed rods (42) are fixedly connected to electric slide rails (43), the two electric slide rails (43) are slidably connected to mobile racks (44), the bottoms of the two mobile racks (44) are fixedly connected to electric push rods (45), the telescopic ends of the two electric push rods (45) are commonly fixedly connected to a second connecting plate (46), the second connecting plate (46) is symmetrically fixedly connected to two lifting plates (47), the upper surface of the fixed platform (41) is fixedly connected to a spring telescopic rod (48), the lifting plate (47) is adapted to the shape of the notch of the tray (32), the bottom of the lifting plate (47) is provided with a long groove adapted to the shape of the spring telescopic rod (48), and the end of the spring telescopic rod (48) away from the fixed platform (41) is slidably connected to the long groove at the bottom of the lifting plate (47).

4. The ignition test device capable of switching engine models according to claim 3, characterized in that: Two limit blocks are fixedly connected to the upper surface of the lifting plate (47), and a limit slot matching the limit blocks on the lifting plate (47) is provided in the notch of the tray (32), and the limit blocks are plugged into and matched with adjacent limit slots.

5. The ignition test device capable of switching engine models according to claim 4, characterized in that: A protection component is provided on the fixed platform (41), the protection component comprising a lifting groove (51) opened on the fixed platform (41), a stabilizing plate (52) fixedly connected inside the lifting groove (51), convex plates (53) fixedly connected to both sides of the bottom of the fixed platform (41), a multi-section electric telescopic rod (54) fixedly connected to the upper surface of the convex plates (53), a connecting rod (55) fixedly connected to the telescopic shafts of the two multi-section electric telescopic rods (54), a first protection plate (56) fixedly connected between the two connecting rods (55), a second protection plate (57) fixedly connected to the tops of the two electric slide rails (43), a top plate (58) fixedly connected between the tops of the two second protection plates (57), and the first protection plate (56) slidably arranged inside the stabilizing plate (52).

6. The ignition test device capable of switching engine models according to claim 5, characterized in that: An exhaust hole is provided at the top of the top plate (58), an exhaust pipe (6) corresponding to the exhaust hole is fixedly connected to the top plate (58), and an exhaust pump is provided on the exhaust pipe (6).

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