Four-side rotating body sealing device

Abstract

The utility model discloses a four-side rotating body sealing device which comprises a rotating tetrahedron mechanism. Comprising a driving mechanism; comprising an auxiliary supporting mechanism; wherein the rotating tetrahedron mechanism comprises a core body and blocking plates installed outside the core body, the number of the blocking plates is four, the blocking plates are installed on the four faces of the core body through positioning pin bolts, and flange shafts are symmetrically arranged at the two ends of the core body; the driving mechanism comprises a motor arranged on one side of the core body, a speed reducer arranged at one end of an output shaft of the motor and a driving wheel arranged at the output end of the speed reducer, and the motor is in transmission connection with a flange shaft on the core body through the driving wheel to drive the core body to rotate and change the surface. And plugging of different heights, different plugging surface shapes and different cylinder body lengths can be completed at the same station. Compared with the prior art, the device is economical in production cost and small in occupied space, and the production takt is shortened by times.

Description

Technical Field

[0001] The utility model relates to the technical field of engine assembly sealing detection equipment, in particular to a four-sided rotating body sealing device. Background Art

[0002] In order to reduce costs, major automobile factories produce multiple types of engines on the same line, resulting in an increasing number of types with similar structures such as engine blocks, cylinder heads, and reducers. Manual replacement of plugging fixtures or adding leak detection equipment is inefficient and easy to be installed improperly, while the latter greatly increases the cost of leak testing equipment. It is necessary to reduce the error rate of mixed-line production while saving costs, improve production efficiency, reduce space occupancy, and increase production rhythm. The current switching solutions for leak testing plugging plates are roughly as follows: 1. Stop the machine and quickly replace the plugging fixture manually, test the sealing effect after fixing, and then start production; 2. Add leak testing equipment, and plug and test leaks according to machine models and workstations. The first method involves human participation and cannot be automated, with low work efficiency and high error rate. The second method increases the length of the equipment, reduces the production rhythm, occupies space, and increases equipment costs.

[0003] Therefore, we need to propose a four-sided rotating body sealing device. Utility Model Content

[0004] The purpose of the utility model is to provide a four-sided rotating body sealing device, which can complete the sealing of different heights, different sealing surface shapes and different cylinder lengths at the same station. Compared with the existing technology, this device has economical production cost, small space occupation, and shortens the production cycle by several times, so as to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A tetrahedron sealing device, comprising a rotating tetrahedron mechanism for sealing an engine cylinder block;

[0007] comprising a driving mechanism disposed on one side of the rotating tetrahedron mechanism and used for driving the rotating tetrahedron mechanism;

[0008] It includes an auxiliary support mechanism disposed above the rotating tetrahedron mechanism and used for auxiliary support of the rotating tetrahedron mechanism;

[0009] The rotating tetrahedron mechanism includes a core body and a blocking plate installed outside the core body. The blocking plates are provided in four groups. The blocking plates are installed on four surfaces of the core body through positioning pins and bolts. Flange shafts are symmetrically arranged at both ends of the core body.

[0010] The driving mechanism includes a motor installed on one side of the core, a reducer at one end of the motor output shaft and a driving wheel at the output end of the reducer. The motor is connected to the flange shaft on the core through the driving wheel to drive the core to rotate and change surface.

[0011] Preferably, the flange of the flange shaft is key-connected to the end surface of the core body, and the flange of the flange shaft is fixed by a locating pin.

[0012] Preferably, the core body is provided with an active bearing seat at one end of the motor and a driven bearing seat at the other end of the core body, and the shafts of the two flange shafts at both ends of the core body are respectively inserted and fixed to the bearing inner ring of the active bearing seat and the bearing inner ring of the driven bearing seat.

[0013] Preferably, a fixing frame for fixing the reducer is installed on the outer side of the upper end of the active bearing seat through fixing screws, and the active wheel is rotatably installed inside the fixing frame.

[0014] Preferably, a driven wheel is installed at the end of the flange shaft located on one side of the active bearing seat, and the active wheel is connected to the driven wheel through a synchronous belt transmission.

[0015] Preferably, the auxiliary support mechanism includes a cylinder and a fixing plate for fixing the cylinder, the top of the active bearing seat and the driven bearing seat are both provided with pads, the fixing plate is installed on the two sets of pads by fixing screws, and the cylinder is fixedly installed on the fixing plate.

[0016] Preferably, a support rod for auxiliary support of the blocking plate is installed on one side of the telescopic rod of the cylinder, which is used for intermediate support and leveling of the large surface.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model can be compatible with at least four types of cylinder top surfaces and automatically level and seal. The switching of the large sealing surfaces is completed by motor drive, and the large surface is intermediately supported and leveled by the auxiliary support mechanism. The sealing of different heights, different sealing surface shapes and different cylinder lengths can be completed at the same workstation. Compared with the existing technology, this device has economical production cost, less space occupation, and shortens the production cycle by several times. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the core of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the support rod of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the fixing plate of the utility model.

[0023] In the figure: 1. Core body; 2. Motor; 3. Reducer; 4. Fixed frame; 5. Driven wheel; 6. Synchronous belt; 7. Active bearing seat; 8. Driven bearing seat; 9. Base plate; 10. Flange shaft; 11. Sealing plate; 12. Fixed plate; 13. Cylinder; 14. Support rod; 15. Driving wheel. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figure 1-2 , the present invention provides a technical solution:

[0026] A four-sided rotating body sealing device, including a rotating tetrahedron mechanism for sealing an engine cylinder block;

[0027] Among them, the rotating tetrahedron mechanism includes a core body 1 and a sealing plate 11 installed outside the core body 1. Four groups of sealing plates 11 are provided. The sealing plates 11 are installed on the four faces of the core body 1 through positioning pin bolts. Flange shafts 10 are symmetrically arranged at both ends of the core body 1;

[0028] The flange of the flange shaft 10 is key-connected to the end face of the core body 1, and the flange of the flange shaft 10 is fixed by a positioning pin. An active bearing seat 7 is installed at one end of the core body 1 where the motor 2 is located, and a driven bearing seat 8 is installed at the other end of the core body 1. The shaft rods of the two flange shafts 10 at both ends of the core body 1 are respectively inserted and fixed in the bearing inner rings of the active bearing seat 7 and the driven bearing seat 8.

[0029] During actual use, four different sealing plates 11 can be distributed and installed on the four outer walls of the core body 1 through positioning pin bolts to correspond to engine cylinder blocks with different heights, different sealing surface shapes, and different cylinder block lengths, so as to be compatible with workpieces that require multi-size cylinder top surface plugging and sealing and need to quickly switch multiple sealing plates 11 with multiple sealing surfaces in a limited space. The rotation of the core body 1 is realized through the cooperation of the flange shafts 10 and the bearing seats at both ends of the core body 1, and at the same time, the automatic switching of the sealing surface is realized through the driving mechanism outside the core body 1.

[0030] Please refer to Figure 1-2 :

[0031] It includes a driving mechanism for driving the rotating tetrahedron mechanism arranged on one side of the rotating tetrahedron mechanism;

[0032] The driving mechanism includes a motor 2 installed on one side of the core 1, a reducer 3 at one end of the output shaft of the motor 2, and a driving wheel 15 at the output end of the reducer 3. The motor 2 is connected to the flange shaft 10 on the core 1 through the driving wheel 15 to drive the core 1 to rotate and change surface.

[0033] A fixed frame 4 for fixing the reducer 3 is installed on the outer side of the upper end of the active bearing seat 7 through fixing screws, and the driving wheel 15 is rotatably installed inside the fixed frame 4. A driven wheel 5 is installed at the end of the flange shaft 10 located on one side of the active bearing seat 7, and the driving wheel 15 is connected to the driven wheel 5 through a synchronous belt 6.

[0034] By arranging a driving mechanism including a motor 2, a reducer 3 and a driving wheel 15 outside the core body 1, a driven wheel 5 is installed on the flange shaft 10 on the active bearing seat 7 of the core body 1, and the synchronous belt 6 and the driving wheel 15 are coordinated. After starting the motor 2, the core body 1 can be driven to rotate, so that the surface can be changed according to different cylinder bodies, thereby realizing automatic response.

[0035] See also Figure 3-4 :

[0036] It includes an auxiliary support mechanism disposed above the rotating tetrahedron mechanism and used for auxiliary support of the rotating tetrahedron mechanism;

[0037] The auxiliary support mechanism includes a cylinder 13 and a fixing plate 12 for fixing the cylinder 13. Pads 9 are provided on the tops of the active bearing seat 7 and the driven bearing seat 8. The fixing plate 12 is mounted on the two sets of pads 9 by fixing screws, and the cylinder 13 is fixedly mounted on the fixing plate 12. A support rod 14 for auxiliary support of the blocking plate 11 is installed on one side of the telescopic rod of the cylinder 13, which is used for intermediate support and leveling of the large surface.

[0038] By installing a fixing plate 12 on the pad 9 on the active bearing seat 7 and the driven bearing seat 8, and installing a cylinder 13 on the fixing plate 12, before performing a plugging test, after the core body 1 switches the plugging plate 11, the cylinder 13 is started, and the cylinder 13 drives the support rod 14 to move downward to perform intermediate support and large-surface leveling. On the one hand, the plugging plate 11 can be kept flat and stable, and on the other hand, the plugging plate 11 can be prevented from easily displacing and shaking during the test. To achieve this purpose, multiple groups of cylinders 13 and support rods 14 are arranged to perform multi-point positioning of the plugging plate 11.

[0039] See also Figure 1-4 :

[0040] Among them, the fixed plate 12 has a certain gap from the blocking plate 11 of the rotating tetrahedron mechanism to facilitate the rotation of the core 1. The entire device is lifted and lowered by a hydraulic cylinder. The end of the hydraulic rod of the hydraulic cylinder is fixed on the fixed plate 12 to drive the rotating tetrahedron mechanism and the auxiliary support mechanism to lift and lower until the blocking plate 11 is attached to the engine cylinder body;

[0041] In actual use, the rotating tetrahedron is connected by the flange shaft 10, the bearing seat is fixed, and the motor 2 and the reducer 3 are driven, and the transmission is transmitted through the synchronous belt 6 to realize the replacement of the different plugging plates 11 on the four sides of the core 1. After the plugging plate 11 is switched, the support rod 14 of the auxiliary support mechanism supports the rotating tetrahedron, thereby completing the action before sealing. Then the hydraulic cylinder is pressed down to seal. After the plugging test is completed, if the plugging plate 11 needs to be switched, the support rod 14 of the auxiliary support mechanism is retracted to facilitate the rotation of the core 1, the servo motor 2 is started, and the core 1 rotates to the specified type of plugging plate 11 and stops, and angle compensation is performed. Then the support rod 14 of the auxiliary support mechanism supports the core 1 again to complete the closed-loop switching.

[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A four-sided rotating body sealing device, characterized in that: Includes a rotating tetrahedron mechanism for sealing an engine block; comprising a driving mechanism disposed on one side of the rotating tetrahedron mechanism and used for driving the rotating tetrahedron mechanism; It includes an auxiliary support mechanism disposed above the rotating tetrahedron mechanism and used for auxiliary support of the rotating tetrahedron mechanism; The rotating tetrahedron mechanism comprises a core body (1) and a blocking plate (11) mounted on the outside of the core body (1), wherein four groups of the blocking plates (11) are provided, and the blocking plates (11) are mounted on four surfaces of the core body (1) by means of positioning pins and bolts, and flange shafts (10) are symmetrically arranged at both ends of the core body (1); The driving mechanism comprises a motor (2) respectively mounted on one side of the core (1), a reducer (3) at one end of the output shaft of the motor (2), and a driving wheel (15) at the output end of the reducer (3); the motor (2) is connected to a flange shaft (10) on the core (1) through the driving wheel (15) to drive the core (1) to rotate and change planes.

2. The four-sided rotating body sealing device according to claim 1, characterized in that: The flange of the flange shaft (10) is key-connected to the end surface of the core body (1), and the flange of the flange shaft (10) is fixed by a positioning pin.

3. The tetrahedral rotating body sealing device according to claim 1, characterized in that: The core body (1) is provided with an active bearing seat (7) at one end of the motor (2), and a driven bearing seat (8) is provided at the other end of the core body (1). The shafts of the two flange shafts (10) at both ends of the core body (1) are respectively plugged and fixed to the bearing inner ring of the active bearing seat (7) and the bearing inner ring of the driven bearing seat (8).

4. The four-sided rotating body sealing device according to claim 3, characterized in that: A fixed frame (4) for fixing the reducer (3) is installed on the outer side of the upper end of the active bearing seat (7) via fixing screws, and the active wheel (15) is rotatably installed inside the fixed frame (4).

5. The four-sided rotating body sealing device according to claim 4, characterized in that: A driven wheel (5) is installed at the end of the flange shaft (10) located on one side of the active bearing seat (7), and the active wheel (15) is connected to the driven wheel (5) through a synchronous belt (6).

6. The tetrahedral rotating body sealing device according to claim 3, characterized in that: The auxiliary support mechanism comprises a cylinder (13) and a fixing plate (12) for fixing the cylinder (13); a pad (9) is provided on the top of the active bearing seat (7) and the driven bearing seat (8); the fixing plate (12) is mounted on the two sets of pads (9) by fixing screws; and the cylinder (13) is fixedly mounted on the fixing plate (12).

7. The tetrahedral rotating body sealing device according to claim 6, characterized in that: A support rod (14) for auxiliary support of the blocking plate (11) is installed on one side of the telescopic rod of the cylinder (13) and is used for intermediate support and leveling of the large surface.

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