Clamping device of engine practical training platform

Abstract

The utility model provides an engine practical training platform clamping device, and relates to the technical field of teaching instruments.The engine practical training platform clamping device comprises a base, the two ends of the base are rotationally connected with aligning mechanisms respectively, the aligning mechanisms are provided with abutting mechanisms, the abutting mechanisms comprise hydraulic cylinders and oil tanks, all the hydraulic cylinders at one end communicate with one another, and all the hydraulic cylinders at the other end communicate with one another; a stop valve and a booster pump are arranged between the hydraulic cylinder and the oil tank. According to the device, the communicated hydraulic cylinder is matched with the surface profile of the engine, the booster pump is used for applying pressure to the hydraulic cylinder, then the engine is clamped, the center of the engine is adjusted to coincide with the rotating axis through the aligning mechanism, dynamic balance can be achieved, the engine can be manually and randomly rotated to a proper angle, and compared with traditional bolt connection, operation is more convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of teaching apparatus, in particular to an engine practical training platform clamping device. BACKGROUND

[0002] The engine practical training platform clamping device is mainly used in engine teaching. The engine is clamped by the clamping device and can be rotated to a specified angle, thereby facilitating teaching display. However, the outer surface of the engine still has other structures, such as timing chains, which cannot be directly clamped. Therefore, the existing technology still adopts a bolt fixing mode, which is relatively troublesome. SUMMARY

[0003] In order to overcome the existing deficiencies, the engine practical training platform clamping device provided by the embodiments of the present application can solve the problems mentioned in the background.

[0004] The technical scheme adopted by the embodiments of the present application to solve the technical problems is: an engine practical training platform clamping device, comprising a base, two ends of the base are rotationally connected with a centering mechanism, a pressing mechanism is arranged on the centering mechanism, the pressing mechanism comprises a hydraulic cylinder and an oil tank, all the hydraulic cylinders at one end are in communication with each other, a stop valve and a booster pump are arranged between the hydraulic cylinder and the oil tank.

[0005] In a specific embodiment, the base comprises a bottom plate, the bottom plate is fixedly connected with a stand at both ends, and slopes are arranged on both sides of the bottom plate.

[0006] In a specific embodiment, a pulley A is rotationally connected to the stand, a transmission shaft is rotationally connected in the bottom plate, pulley B is fixedly connected to both ends of the transmission shaft, and a belt is arranged between the pulley A and the pulley B.

[0007] In a specific embodiment, the centering mechanism comprises a cross frame, the cross frame is fixedly connected with the corresponding pulley A, a transfer block is slidably connected to the cross frame, and a vertical frame is slidably connected to the transfer block.

[0008] In a specific embodiment, a horizontal screw rod is rotationally connected to the cross frame, a vertical screw rod is rotationally connected to the vertical frame, the horizontal screw rod and the vertical screw rod are both threadedly connected with the transfer block, a horizontal motor is arranged on the cross frame, a vertical motor is arranged on the vertical frame, the output end of the horizontal motor is fixedly connected with the horizontal screw rod, and the output end of the vertical motor is fixedly connected with the vertical screw rod.

[0009] In a specific embodiment, a hand turning mechanism is arranged on the column, which comprises a worm wheel and a lever frame, the worm wheel is fixedly connected with the cross frame, the lever frame is rotationally connected with the column, a worm is rotationally connected with the lever frame, the worm is in clutch engagement with the worm wheel, and a hand wheel is fixedly connected with one end of the worm.

[0010] In a specific embodiment, the hand turning mechanism further comprises a spring pin, which is mounted on the column, a pin hole is formed in the lever frame and matched with a pin head of the spring pin, and the pin head of the spring pin is in pin connection with the lever frame.

[0011] In a specific embodiment, a stop pad is rotationally connected with the telescopic end of the hydraulic cylinder.

[0012] In a specific embodiment, an inner thread is arranged on the end face of the cylinder body of the hydraulic cylinder, and the stop pad is in screw connection with the inner thread.

[0013] In a specific embodiment, a cross-shaped recess is formed in the stop pad.

[0014] The engine practical training platform clamping device provided by the embodiment has the following advantages:

[0015] The hydraulic cylinders are matched with the surface profile of the engine, the hydraulic cylinders are pressurized by the booster pump, the engine is clamped, the center of the engine is adjusted to coincide with the rotation axis by the aligning mechanism, dynamic balance is achieved, the engine can be manually rotated to a suitable angle at will, and the operation is more convenient than the traditional bolt connection operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The first view structure schematic diagram of the engine practical training platform clamping device provided by the embodiment is shown in the figure;

[0017] Figure 2 The second view structure schematic diagram of the engine practical training platform clamping device provided by the embodiment is shown in the figure;

[0018] Figure 3 The aligning mechanism structure schematic diagram provided by the embodiment is shown in the figure;

[0019] Figure 4 The hand turning mechanism and pulley A connection relationship structure schematic diagram provided by the embodiment is shown in the figure;

[0020] Figure 5 The stop pad mechanism structure schematic diagram provided by the embodiment is shown in the figure.

[0021] In the figure: 10-base; 11-bottom plate; 12-stand; 13-belt pulley A; 14-transmission shaft; 15-belt pulley B; 16-belt; 20-aligning mechanism; 21-cross frame; 22-adapter block; 23-vertical frame; 24-horizontal screw; 25-vertical screw; 26-horizontal motor; 27-vertical motor; 30-pressing mechanism; 31-hydraulic cylinder; 32-oil tank; 33-stop valve; 34-boost pump; 35-pad; 36-internal thread; 40-hand turning mechanism; 41-worm wheel; 42-worm; 43-rod frame; 44-spring pin; 45-hand wheel. DETAILED DESCRIPTION

[0022] The technical solution in the embodiments of the present application is to solve the problems mentioned in the background art, and the general idea is as follows:

[0023] Please refer to Figures 1-5 A clamping device for an engine practical training platform, comprising a base 10, both ends of the base 10 are rotatably connected with an aligning mechanism 20, the aligning mechanism 20 is provided with a pressing mechanism 30, the pressing mechanism 30 comprises a hydraulic cylinder 31 and an oil tank 32, all the hydraulic cylinders 31 at one end are communicated with each other, and a stop valve 33 and a boost pump 34 are arranged between the hydraulic cylinder 31 and the oil tank 32. Among them, the hydraulic cylinder 31 is matched with the surface profile of the engine, the boost pump 34 is used to pressurize the hydraulic cylinder 31, so as to clamp the engine, the center of the engine is adjusted to coincide with the rotation axis by the aligning mechanism 20, that is, dynamic balance can be achieved, the engine can be manually rotated to a suitable angle at will, and the operation is more convenient than the traditional bolt connection operation.

[0024] Please refer to Figures 1-5 The base 10 comprises a bottom plate 11, both ends of the bottom plate 11 are fixedly connected with a stand 12, and both sides of the bottom plate 11 are provided with slopes. Here, the engine is placed on a trolley and pushed to the teaching site, pushed onto the bottom plate 11 through the slopes, and then clamped by the pressing mechanism 30, and the trolley can be removed after the engine is lifted by the aligning mechanism 20.

[0025] Please refer to Figures 1-5 The stand 12 is rotatably connected with a belt pulley A 13, the bottom plate 11 is rotatably connected with a transmission shaft 14, both ends of the transmission shaft 14 are fixedly connected with belt pulleys B 15, and a belt 16 is arranged between the belt pulley A 13 and the belt pulley B 15. Here, the belt pulley A 13 is installed on the corresponding aligning mechanism 20, and synchronous rotation of the two aligning mechanisms 20 is realized through the belt pulley A 13, the belt 16, the belt pulley B 15 and the transmission shaft 14. In this embodiment, the contact surfaces of the belt 16, the belt pulley A 13 and the belt pulley B 15 are all provided with teeth, and the teeth are engaged with each other to avoid slipping and improve the synchronization effect.

[0026] Please refer to Figures 1-5The centering mechanism 20 comprises a cross frame 21, an adapter block 22 and a vertical frame 23, the cross frame 21 is fixedly connected with the corresponding belt wheel A13, the adapter block 22 is provided with dovetail structures perpendicular to each other on two sides, the cross frame 21 and the vertical frame 23 are respectively provided with dovetail grooves matched with the dovetail structures, and the adapter block 22 is slidably connected with the cross frame 21 and the vertical frame 23 through the dovetail structures on two sides. Here, the cross frame 21 and the vertical frame 23 are connected through the adapter block 22 to realize displacement adjustment in the horizontal and vertical directions, the displacement in the two directions is superimposed, which is equivalent to free movement in a vertical plane, and adjustment of dynamic balance is realized.

[0027] Please refer to Figures 1-5 A horizontal screw rod 24 is rotatably connected to the cross frame 21, and a vertical screw rod 25 is rotatably connected to the vertical frame 23, the horizontal screw rod 24 and the vertical screw rod 25 are threadedly connected with the adapter block 22, a horizontal motor 26 is arranged on the cross frame 21, and a vertical motor 27 is arranged on the vertical frame 23, the output end of the horizontal motor 26 is fixedly connected with the horizontal screw rod 24, and the output end of the vertical motor 27 is fixedly connected with the vertical screw rod 25. Here, the horizontal motor 26 drives the horizontal screw rod 24 to rotate, thereby driving the adapter block 22 to move horizontally on the cross frame 21, horizontal gravity center adjustment is realized, until the engine is vertically erected, then the vertical motor 27 drives the vertical screw rod 25 to rotate, thereby driving the vertical frame 23 to move vertically on the adapter block 22, vertical gravity center adjustment is realized, until the reset moment of the engine left and right deflection tends to zero, in this way, the gravity center of the engine coincides with the rotation axis, the state of dynamic balance is realized, the engine can be freely rotated by hand and kept at any angle, so as to facilitate display at each angle.

[0028] Please refer to Figures 1-5 A hand turning mechanism 40 is arranged on the stand column 12, the hand turning mechanism 40 comprises a worm wheel 41 and a lever frame 43, the worm wheel 41 is fixedly connected with the cross frame 21, the lever frame 43 is rotatably connected with the stand column 12, a worm rod 42 is rotatably connected to the lever frame 43, the worm rod 42 is in clutch engagement with the worm wheel 41, and a hand wheel 45 is fixedly connected to one end of the worm rod 42. Here, when the cross frame 21 rotates, the lever frame 43 is lifted to make the worm rod 42 away from the worm wheel 41, in this way, the engine can be freely and relatively quickly rotated to a specified angle by hand, when it is necessary to accurately adjust the specified angle, the worm rod 42 is engaged with the worm wheel 41, the worm rod 42 is rotated by rotating the hand wheel 45, thereby driving the worm wheel 41 and the cross frame 21 to rotate, because of the speed reduction effect, the fine adjustment of the display angle of the engine is realized, and because of the self-locking effect of the worm wheel 41 and the worm rod 42, the current display angle is locked.

[0029] Please refer to Figures 1-5The hand rotating mechanism 40 further comprises a spring pin 44, which is installed on the stand column 12, the rod holder 43 is provided with a pin hole corresponding to the pin head of the spring pin 44, and the pin head of the spring pin 44 is in pin connection with the rod holder 43. Here, the rod holder 43 has two postures, i.e. engagement and disengagement of the worm 42, the rod holder 43 is provided with two pin holes corresponding to the two postures, and the two postures are locked by the spring pin 44, so that the worm gear 41 can be freely rotated, or rotated by the worm 42 or locked by the worm 42, and the controllability of the rotation of the practical training platform is improved. In the embodiment, the oil tank 32 and the booster pump 34 are installed at one end of the vertical support 23, all the hydraulic cylinders 31 on one vertical support 23 are connected together through hard pipes, and then connected to the oil tank 32 through the stop valve 33 and the booster pump 34. Since the hydraulic cylinders 31 are distributed on the vertical support 23, when the vertical support 23 is upright or inverted after rotation, the oil in the oil tank 32 can flow into the hydraulic cylinders 31 or return, which is convenient for maintenance and debugging.

[0030] Please refer to Figures 1-5 The telescopic end of the hydraulic cylinder 31 is rotatably connected with a resisting pad 35. Here, the resisting pad 35 is used to adhere to the surface of the engine to increase the friction force, and also avoids damage to the surface of the cylinder body.

[0031] Please refer to Figures 1-5 The end surface of the cylinder body of the hydraulic cylinder 31 is provided with an internal thread 36, and the resisting pad 35 is in screw connection with the internal thread 36. Here, when the position of an individual hydraulic cylinder 31 is interfered by the timing chain or other structures and cannot be resisted to the surface of the engine, the resisting pad 35 at this position can be compressed inward and then rotated and fixed to the internal thread 36, which is equivalent to temporarily shielding the hydraulic cylinder 31, and other hydraulic cylinders 31 can be used for clamping, so that the universality of the device can be improved.

[0032] Please refer to Figures 1-5 The resisting pad 35 is provided with a cross-shaped groove. Here, the cross-shaped groove can be clamped on the reinforcing ribs on the surface of the engine to avoid slipping, and also facilitates the rotation of the resisting pad 35 to be screwed with the internal thread 36. Since the reinforcing ribs on the surface of the cylinder body are not necessarily horizontal and vertical, the resisting pad 35 is rotatably connected to the telescopic end of the hydraulic cylinder 31, so that the angle can be adjusted to accurately clamp the reinforcing ribs on the surface of the cylinder body.

[0033] The application uses: the engine is placed on the trolley and pushed to the teaching site, is pushed to the bottom plate 11 through the slope, according to the surface condition of the engine, the abutting pad 35 of the hydraulic cylinder 31 unsuitable for ejection is screwed on the internal thread 36 first, the hydraulic cylinder 31 is temporarily shielded, then the booster pump 34 is started, all hydraulic cylinders 31 are pushed out, because all hydraulic cylinders 31 on a vertical frame 23 are interconnected, the length can be automatically adjusted and abutted, then the booster pump 34 and the stop valve 33 are closed, then the vertical motor 27 and the vertical screw rod 25 rotate to make the vertical frame 23 move upward relative to the adapter block 22, the engine is lifted off the trolley, the trolley is moved away, then the vertical motor 27 and the horizontal motor 26 act respectively to adjust the center of gravity of the engine on the vertical plane, until the center of gravity coincides with the rotation axis of the horizontal frame 21, in this way, the engine can be freely and relatively quickly rotated to the specified angle by hand, when accurate adjustment of the specified angle is required, the worm 42 is engaged on the worm wheel 41, the worm 42 is rotated by rotating the hand wheel 45, and the worm wheel 41 and the horizontal frame 21 are driven to rotate, because of the speed reduction effect, the fine adjustment of the display angle of the engine is realized, and because of the self-locking effect of the worm wheel 41 and the worm 42, the current display angle is locked.

[0034] In summary, the hydraulic cylinders 31 are communicated and matched with the surface profile of the engine, the booster pump 34 is used to pressurize the hydraulic cylinders 31, and then the engine is clamped, the centering mechanism 20 is used to adjust the center of the engine to coincide with the rotation axis, so that dynamic balance is realized, the engine can be manually rotated to the appropriate angle at will, and the operation is more convenient than the traditional bolt connection.

[0035] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the application, and are not limitations on the embodiments. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the application.

Claims

1. An engine training bench clamping device, characterized in that, The device includes a base, with a self-aligning mechanism rotatably connected to each end of the base. The self-aligning mechanism is equipped with a clamping mechanism, which includes a hydraulic cylinder and an oil tank. All the hydraulic cylinders at one end are interconnected, and a shut-off valve and a booster pump are provided between the hydraulic cylinder and the oil tank.

2. The engine training bench clamping device of claim 1, wherein, The base includes a base plate, with columns fixedly connected to both ends of the base plate, and slopes provided on both sides of the base plate.

3. The engine training bench holding device of claim 2, wherein A pulley A is rotatably connected to the column, and a drive shaft is rotatably connected inside the base plate. Pulleys B are fixedly connected to both ends of the drive shaft, and a belt is provided between pulley A and pulley B.

4. The engine training bench holding device of claim 3, wherein The self-aligning mechanism includes a crossbeam, which is fixedly connected to the corresponding pulley A. A transition block is slidably connected to the crossbeam, and a vertical frame is slidably connected to the transition block.

5. The engine training bench holding device of claim 4, wherein A horizontal lead screw is rotatably connected to the horizontal frame, and a vertical lead screw is rotatably connected to the vertical frame. Both the horizontal and vertical lead screws are threadedly connected to the adapter block. A horizontal motor is installed on the horizontal frame, and a vertical motor is installed on the vertical frame. The output end of the horizontal motor is fixedly connected to the horizontal lead screw, and the output end of the vertical motor is fixedly connected to the vertical lead screw.

6. The engine training bench holding device of claim 5, wherein The column is equipped with a manual turning mechanism, which includes a worm gear and a rod frame. The worm gear is fixedly connected to the cross frame, and the rod frame is rotatably connected to the column. A worm is rotatably connected to the rod frame, and the worm is engaged with the worm gear in a clutch-type engagement. A handwheel is fixedly connected to one end of the worm.

7. The engine training bench holding device of claim 6, wherein The manual turning mechanism also includes a spring pin, which is installed on the column. The rod frame has a pin hole that matches the pin head of the spring pin, and the pin head of the spring pin is pin-connected to the rod frame.

8. The engine training bench holding device of claim 1 wherein, A pad is rotatably connected to the telescopic end of the hydraulic cylinder.

9. The engine training bench holding device of claim 8, wherein The cylinder body end face of the hydraulic cylinder is provided with an internal thread, and the abutment is screwed into the internal thread.

10. The engine training bench holding device of claim 9, wherein The pad has a cross-shaped groove.

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