Pushing device for disassembly and assembly of tail gas purification device

Abstract

The utility model provides a pushing device for dismounting and mounting a tail gas purification device. The pushing device comprises a vertical bracket, a fixed cylinder, a pushing structure and an adjusting structure, the vertical support is provided with a horizontally-arranged working table. The fixing cylinder is arranged on the working table, a plane part is arranged at the top end of the fixing cylinder, and a clamping groove matched with the bottom end of the tail gas purifier shell is formed in the plane part. The central axis of the clamping groove in the vertical direction is collinear with the axis of the fixing cylinder, and the bottom face of the clamping groove is provided with a via hole communicating with a cylinder cavity of the fixing cylinder. The pushing structure is arranged on the vertical support and provided with a circular pushing plate which is located above the plane part and can move in a lifting mode. The adjusting structure extends into a cylinder cavity of the fixed cylinder from the bottom end of the fixed cylinder and can drive the fixed cylinder to move horizontally, so that the axis of the fixed cylinder and the axis of the circular push plate are collinear. According to the pushing device for disassembling and assembling the tail gas purification device, it can be guaranteed that the circular pushing plate is located in the center of the catalysis unit in the press-fitting process, stress concentration is avoided, the press-fitting effect is guaranteed, and practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of purifier disassembly and assembly auxiliary equipment, and particularly relates to a pushing device for disassembly and assembly of an exhaust gas purification device. Background Art

[0002] Exhaust gas purification device refers to the exhaust gas purifier of the car, which usually includes a cylindrical shell and a honeycomb catalytic unit located inside the shell. The catalytic unit contains precious metals such as platinum, palladium and rhodium, which can remove CO, HC and NO emitted by the car. X The exhaust gas is converted into carbon dioxide, water, and nitrogen. Regarding the disassembly and assembly of the exhaust purification device, the honeycomb catalytic unit is pressed into the cylindrical cavity of the shell, or pushed out of the honeycomb catalytic unit in the cylindrical cavity of the shell. Because the honeycomb catalytic unit and the cylindrical cavity are tightly connected, a pushing device is required during the disassembly and assembly process.

[0003] In the prior art, the pushing device is usually provided with a circular pressure plate that can be moved vertically, and a placement table is provided under the pressure plate. During the press-fitting process, the outer shell is placed on the placement table, and the catalytic unit is placed on the top, and then the catalytic unit is pressed by the pressure plate to allow the catalytic unit to enter the cylindrical cavity of the outer shell. During the disassembly process, an auxiliary cylinder that supports the outer eaves of the purifier shell to be disassembled is usually placed under the shell, and the catalytic unit is pressed into the auxiliary cylinder by the pressure plate. However, the diameter of the pressure plate involved is usually smaller than the cross-section of the cylindrical cavity of the outer shell, and the process of placing the outer shell on the placement table is usually done manually, so it is impossible to ensure that the axis of the pressure plate and the axis of the outer shell are in the same straight line. This causes the catalytic unit to be easily stuck due to uneven force during the press-fitting process, which in turn causes the catalytic unit to be crushed and the press-fitting effect is poor. Utility Model Content

[0004] An embodiment of the utility model provides a pushing device for assembling and disassembling an exhaust gas purification device, aiming to solve the problem of poor practicality of the pushing equipment used in the existing exhaust gas purification device due to poor press-fitting effect.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a pushing device for disassembling and assembling an exhaust gas purification device, comprising:

[0006] Vertical stand with horizontally set work surface;

[0007] A fixed cylinder is arranged on the work surface, the top of the fixed cylinder is provided with a flat portion, and the flat portion is provided with a slot adapted to the bottom end of the exhaust gas purifier housing; the vertical center axis of the slot is collinear with the axis of the fixed cylinder, and the bottom surface is provided with a through hole communicating with the barrel cavity of the fixed cylinder;

[0008] A push structure is provided on the vertical support and is provided with a circular push plate located above the plane portion and capable of being raised and lowered;

[0009] The adjusting structure extends into the cylinder cavity of the fixed cylinder at the bottom end of the fixed cylinder and is used to drive the fixed cylinder to move horizontally so that the axis of the fixed cylinder is collinear with the axis of the circular push plate.

[0010] In a possible implementation, the pushing structure includes a first telescopic structure, which is fixed on the vertical bracket along the vertical direction, and the telescopic end of the first telescopic structure is connected to the circular pushing plate.

[0011] In a possible implementation, the fixing cylinder includes:

[0012] The cylinder has an axis arranged in the vertical direction and a bottom end abutting against the work surface;

[0013] The top plate is fixed on the top of the cylinder, and the upper plate surface of the top plate is the plane portion; the slot and the through hole are both arranged on the top plate; the connection between the through hole and the slot forms an annular surface for the bottom outer edge of the exhaust gas purifier shell to be erected.

[0014] In a possible implementation, the diameter of the through hole is greater than or equal to the inner diameter of the exhaust gas purifier housing.

[0015] In a possible implementation, the inner diameter of the cylinder is larger than the diameter of the through hole.

[0016] In a possible implementation, the adjustment structure includes:

[0017] A support cylinder is arranged in a vertical direction and is located below the work surface;

[0018] A circular seat is provided at the top end of the support cylinder, and the top end extends upward after passing through the circular hole on the work surface; the axis of the circular seat is collinear with the axis of the circular push plate; a through center hole is provided on the circular seat, and the axis of the center hole is collinear with the axis of the circular seat;

[0019] a carrier plate, horizontally arranged above the circular seat;

[0020] a second telescopic structure, disposed in the support tube and fixedly connected to the bottom end of the circular seat, wherein the telescopic end of the second telescopic structure passes through the center hole and is fixedly connected to the carrier plate;

[0021] There are multiple linkage parts, each of which is arranged in a ring-shaped interval around the axis of the circular seat and is connected to the carrier plate. Each linkage part is used to abut against the inner wall of the cylinder cavity of the fixed cylinder after the second telescopic structure drives the carrier plate downward, so that the fixed cylinder moves until the axis is collinear with the axis of the circular seat.

[0022] In a possible implementation, each of the linkage components includes:

[0023] A transverse sliding post is provided in a horizontal sliding cavity inside the circular seat and slides radially along the circular seat. A first end of the transverse sliding post can extend out of the circular seat. A wedge block is provided at the other end of the transverse sliding post. The wedge block has a first inclined portion facing obliquely upward.

[0024] A vertical rod is arranged in the vertical direction, and its top end is fixedly connected to the carrier plate, and its bottom end extends into the vertical sliding cavity provided in the circular seat. The bottom end of the vertical rod is provided with a second inclined portion adapted to the first inclined portion; after the vertical rod moves downward, it drives the wedge block to move away from the axis of the circular seat through the second inclined portion and the first inclined portion, and causes the extended end of the horizontal sliding column to abut against the inner wall of the cylinder;

[0025] A spring is sleeved in the transverse sliding column, with one end abutting against the wedge block and the other end abutting against the inner wall of the horizontal sliding cavity, and is used to bounce the wedge block so that the transverse sliding column maintains a tendency to move toward the axial direction of the circular seat.

[0026] In this implementation, the work surface mounted on the vertical support provides a flat surface for the fixed cylinder, while the slots at the top of the fixed cylinder ensure stable placement of the exhaust gas purifier housing to be disassembled. The adjustment structure allows the fixed cylinder to be moved on the work surface until its axis is aligned with the axis of the circular push plate, thereby ensuring that the central axis of the exhaust gas purifier housing to be press-fitted is aligned with the axis of the circular push plate. This structure ensures that when the push mechanism is activated and the catalytic unit is press-fitted, the circular push plate is positioned at the center of the catalytic unit, avoiding stress concentration and ensuring a proper press-fit of the catalytic unit, resulting in a highly practical design. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a pushing device for disassembling and assembling an exhaust gas purification device provided by an embodiment of the present utility model;

[0028] Figure 2 A schematic diagram of the front structure of a pushing device for disassembling and assembling an exhaust gas purification device provided by an embodiment of the present utility model (partially in cross-section);

[0029] Figure 3 for Figure 2 The diagram shows an enlarged structural diagram of location A of the pushing device for disassembling and assembling the exhaust gas purification device;

[0030] Description of reference numerals:

[0031] 10. Vertical bracket; 11. Work surface;

[0032] 20. Fixed cylinder; 21. Cylinder body; 22. Top plate; 23. Slot; 24. Through hole; 25. Annular surface;

[0033] 30. Pushing structure; 31. First telescopic structure; 32. Circular push plate;

[0034] 40. Adjustment structure; 41. Support tube; 42. Circular seat; 43. Carrier plate; 44. Second telescopic structure; 45. Linkage member; 451. Horizontal sliding column; 452. Vertical rod; 453. Spring; 454. Wedge block. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] Please also refer to Figure 1 and Figure 2 The present invention now provides a description of the pushing device for disassembling and assembling an exhaust gas purification device. The pushing device comprises a vertical support 10, a fixed cylinder 20, a pushing structure 30, and an adjustment structure 40. The vertical support 10 includes a horizontally disposed work surface 11. The fixed cylinder 20 is mounted on the work surface 11. A flat surface is provided at the top of the fixed cylinder 20, and a slot 23 is provided on the flat surface to mate with the bottom end of the exhaust gas purifier housing. The vertical axis of the slot 23 is collinear with the axis of the fixed cylinder 20, and a through-hole 24 is provided on the bottom surface to communicate with the cylinder cavity of the fixed cylinder 20. The pushing structure 30 is mounted on the vertical support 10 and includes a circular push plate 32 positioned above the flat surface and capable of being raised and lowered. The adjustment structure 40 extends into the cylinder cavity of the fixed cylinder 20 at the bottom end of the fixed cylinder 20, driving the fixed cylinder 20 to move horizontally so that the axis of the fixed cylinder 20 is collinear with the axis of the circular push plate 32.

[0037] Compared with the prior art, the pushing device for disassembling and assembling the exhaust gas purification device provided in this embodiment has a work surface 11 provided on the vertical bracket 10 to ensure that a flat surface is provided for the fixed cylinder 20, and the slot 23 on the top of the fixed cylinder 20 ensures that the exhaust gas purifier shell to be disassembled and assembled is stably placed. The adjustment structure 40 can move the fixed cylinder 20 on the work surface 11 until its axis is collinear with the axis of the circular push plate 32, thereby ensuring that the central axis of the exhaust gas purifier shell to be press-fitted is collinear with the axis of the circular push plate 32. This structure can ensure that when the pushing structure 30 is started and the catalytic unit is press-fitted, the circular push plate 32 is located at the center of the catalytic unit, thereby avoiding stress concentration and ensuring the press-fitting effect of the catalytic unit, and is highly practical.

[0038] Regarding the pushing device for disassembling and assembling the exhaust gas purification device provided in this embodiment, the disassembly steps are as follows: first, the fixed cylinder 20 is adjusted through the adjustment structure 40 so that its axis is arranged collinearly with the axis of the circular push plate 32; then, the exhaust gas purifier housing is placed in the slot 23, and the pushing structure 30 is started. The pushing structure 30 pushes the catalytic unit in the housing through the through hole 24 into the barrel cavity of the fixed cylinder 20; then, the adjustment structure 40 is closed, and the fixed cylinder 20 is picked up to remove the disassembled catalytic unit.

[0039] In addition, it should be noted that the fixing cylinder 20 does not have only a single fixed size specification, and it can be provided with several. Each fixing cylinder 20 only needs to be provided with different specifications of the slots 23 and through holes 24 according to the exhaust gas purifier corresponding to different vehicle models, thereby ensuring universality.

[0040] In some embodiments, the push structure 30 may be configured as follows: Figure 1 The structure shown. Figure 1 The push structure 30 includes a first telescopic structure 31 , which is fixed on the vertical support 10 along the vertical direction. The first telescopic structure 31 has a simple structure, is easy to manufacture, and has high practicality. The telescopic end of the first telescopic structure 31 is connected to a circular push plate 32 .

[0041] In this embodiment, the bottom of the circular push plate 32 may be covered with a silicone rubber layer to avoid hard contact with the catalytic unit.

[0042] It should be noted that the first telescopic structure 31 can be a hydraulic cylinder, and the vertical support 10 can be a gantry, with a crossbeam on the top for mounting the first telescopic structure 31, see Figure 1 .

[0043] In some embodiments, the fixing cylinder 20 may be Figure 3 The structure shown. Figure 3The fixed cylinder 20 includes a cylinder body 21 and a top plate 22. The axis of the cylinder body 21 is arranged in a vertical direction, and the bottom end abuts the work surface 11. The top plate 22 is fixed to the top of the cylinder body 21, and the upper plate surface of the top plate 22 is a flat portion. The slot 23 and the through hole 24 are both provided on the top plate 22. The connection between the through hole 24 and the slot 23 forms an annular surface 25 for the bottom outer edge of the exhaust gas purifier housing to be supported.

[0044] The cylinder body 21 is a cylindrical cylinder, and the outer edge of the bottom end of the cylinder body 21 contacts the work surface 11. The top plate 22 can ensure the formation of a plane, and at the same time facilitates the opening of the slot 23 and the through hole 24. The annular surface 25 formed between the two can ensure the installation of the outer edge of the bottom end of the exhaust purifier shell.

[0045] The slot 23 can be a circular slot, or an elliptical slot, and can be specifically set according to the exhaust catalyst of different specifications. At the same time, the shape of the through hole 24 also needs to be set according to the inner cavity of the shell of the exhaust catalyst, mainly to ensure that the catalytic unit can pass smoothly.

[0046] In some embodiments, the fixing cylinder 20 may be Figure 3 See the structure shown. Figure 3 The diameter of the through hole 24 is greater than or equal to the inner diameter of the exhaust gas purifier housing. This structure ensures that after the catalytic unit is separated from the exhaust gas purifier housing, it can smoothly pass through the through hole 24 and enter the cylinder 21, which is convenient for subsequent removal.

[0047] Of course, if the inner cavity of the exhaust gas purifier housing is elliptical, the corresponding through hole 24 is also elliptical. In this case, the diameter of the through hole 24 is also slightly larger than the diameter of the inner cavity of the exhaust gas purifier housing.

[0048] In some embodiments, the cylinder 21 may be formed as follows: Figure 3 See the structure shown. Figure 3 The inner diameter of the cylinder 21 is larger than the diameter of the through hole 24 to prevent the catalytic unit from being stuck in the cylinder 21 and facilitate the removal of the catalytic unit.

[0049] In some embodiments, the adjustment structure 40 may be implemented as follows: Figure 3 See the structure shown. Figure 3The adjustment structure 40 includes a support tube 41, a circular seat 42, a carrier plate 43, a second telescopic structure 44 and a linkage 45. The support tube 41 is arranged along the vertical direction and is located below the work table 11. The circular seat 42 is arranged at the top end of the support tube 41, and the top end extends upward after passing through the circular hole on the work table 11. The axis of the circular seat 42 is collinear with the axis of the circular push plate 32. A through center hole is provided on the circular seat 42, and the axis of the center hole is collinear with the axis of the circular seat 42. The carrier plate 43 is horizontally arranged above the circular seat 42. The second telescopic structure 44 is arranged in the support tube 41 and is fixedly connected to the bottom end of the circular seat 42. The telescopic end of the second telescopic structure 44 passes through the center hole and is fixedly connected to the carrier plate 43. There are multiple linkage members 45, each linkage member 45 is arranged in a ring-shaped interval around the axis of the circular seat 42 and is connected to the carrier plate 43. After the second telescopic structure 44 drives the carrier plate 43 downward, each linkage member 45 can abut against the inner wall of the cylinder cavity of the fixed cylinder 20, so that the fixed cylinder 20 moves to a position where the axis is collinear with the axis of the circular seat 42.

[0050] The support tube 41 ensures the fixed installation of the circular seat 42 and its stability. The second telescopic structure 44 drives the carrier plate 43 to move up and down. In particular, after descending, the linkage 45 drives the fixed tube 20 to move horizontally until its axis is aligned with the axis of the circular push plate 32. This ensures that the central axis of the exhaust gas purifier is aligned with the axis of the circular push plate 32, ensuring a press-fitting effect. The carrier plate 43 facilitates the actuation of the linkage 45 and also provides a receiving surface to ensure that the catalytic unit can be received after disassembly.

[0051] In some embodiments, the linkage member 45 may be configured as follows: Figure 3 See the structure shown. Figure 3Each linkage member 45 includes a transverse slide 451, a vertical rod 452, and a spring 453. The transverse slide 451 slides radially along the circular seat 42 within a horizontal sliding cavity within the circular seat 42. The first end of the transverse slide 451 can extend out of the circular seat 42. A wedge block 454 is provided at the other end of the transverse slide 451. The wedge block 454 has a first inclined portion facing upward. The vertical rod 452 is arranged vertically, with its top end fixedly connected to the carrier plate 43 and its bottom end extending into the vertical sliding cavity within the circular seat 42. The bottom end of the vertical rod 452 has a second inclined portion that mates with the first inclined portion. When the vertical rod 452 is able to descend, the second inclined portion and the first inclined portion drive the wedge block 454 to move away from the axis of the circular seat 42, causing the extended end of the transverse slide 451 to abut against the inner wall of the cylinder 21. The spring 453 is sleeved in the transverse sliding column 451, with one end abutting against the wedge block 454 and the other end abutting against the inner wall of the horizontal sliding cavity, which can bounce the wedge block 454 so that the transverse sliding column 451 maintains a tendency to move toward the axial direction of the circular seat 42.

[0052] After the carrier plate 43 is driven downward by the second telescopic structure 44, the vertical rod 452 is further moved downward. Through the adaptation of the second inclined portion and the first inclined portion, the combination of the wedge block 454 and the horizontal slide 451 can be driven to move outward, so that the extended end of the horizontal slide 451 abuts against the inner wall of the cylinder 21.

[0053] Because multiple linkage parts 45 are arranged in a ring-shaped interval and started at the same time, the cylinder 21 can be aligned so that its axis is collinear with the axis of the circular push plate 32, thereby ensuring that the center axis of the slot 23 and the exhaust gas purifier placed inside is collinear with the axis of the circular push plate 32, thereby ensuring the press-fitting effect. It has a simple structure, is easy to operate, and is highly practical.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. The pushing device for disassembling and assembling the exhaust gas purification device is characterized in that: include: Vertical stand with horizontally set work surface; A fixed cylinder is arranged on the work surface, the top of the fixed cylinder is provided with a flat portion, and the flat portion is provided with a slot adapted to the bottom end of the exhaust gas purifier housing; the vertical center axis of the slot is collinear with the axis of the fixed cylinder, and the bottom surface is provided with a through hole communicating with the barrel cavity of the fixed cylinder; A push structure is provided on the vertical support and is provided with a circular push plate located above the plane portion and capable of being raised and lowered; The adjusting structure extends into the cylinder cavity of the fixed cylinder at the bottom end of the fixed cylinder and is used to drive the fixed cylinder to move horizontally so that the axis of the fixed cylinder is collinear with the axis of the circular push plate.

2. The pushing device for assembling and disassembling the exhaust gas purification device according to claim 1, characterized in that: The pushing structure includes a first telescopic structure, which is fixed on the vertical bracket along the vertical direction, and the telescopic end of the first telescopic structure is connected to the circular pushing plate.

3. The pushing device for assembling and disassembling the exhaust gas purification device according to claim 1, characterized in that: The fixing cylinder comprises: The cylinder has an axis arranged in the vertical direction and a bottom end abutting against the work surface; The top plate is fixed on the top of the cylinder, and the upper plate surface of the top plate is the plane portion; the slot and the through hole are both arranged on the top plate; the connection between the through hole and the slot forms an annular surface for the bottom outer edge of the exhaust gas purifier shell to be erected.

4. The pushing device for assembling and disassembling the exhaust gas purification device according to claim 3, characterized in that: The diameter of the through hole is greater than or equal to the inner diameter of the exhaust gas purifier housing.

5. The pushing device for assembling and disassembling the exhaust gas purification device according to claim 3, characterized in that: The inner diameter of the cylinder is larger than the diameter of the through hole.

6. The pushing device for assembling and disassembling the exhaust gas purification device according to claim 3, characterized in that: The regulating structure comprises: A support cylinder is arranged in a vertical direction and is located below the work surface; A circular seat is provided at the top end of the support cylinder, and the top end extends upward after passing through the circular hole on the work surface; the axis of the circular seat is collinear with the axis of the circular push plate; a through center hole is provided on the circular seat, and the axis of the center hole is collinear with the axis of the circular seat; a carrier plate, horizontally arranged above the circular seat; a second telescopic structure, disposed in the support tube and fixedly connected to the bottom end of the circular seat, wherein the telescopic end of the second telescopic structure passes through the center hole and is fixedly connected to the carrier plate; There are multiple linkage parts, each of which is arranged in a ring-shaped interval around the axis of the circular seat and is connected to the carrier plate. Each linkage part is used to abut against the inner wall of the cylinder cavity of the fixed cylinder after the second telescopic structure drives the carrier plate downward, so that the fixed cylinder moves until the axis is collinear with the axis of the circular seat.

7. The pushing device for assembling and disassembling the exhaust gas purification device according to claim 6, characterized in that: Each of the linkages comprises: A transverse sliding post is provided in a horizontal sliding cavity inside the circular seat and slides radially along the circular seat. A first end of the transverse sliding post can extend out of the circular seat. A wedge block is provided at the other end of the transverse sliding post. The wedge block has a first inclined portion facing obliquely upward. A vertical rod is arranged in the vertical direction, and its top end is fixedly connected to the carrier plate, and its bottom end extends into the vertical sliding cavity provided in the circular seat. The bottom end of the vertical rod is provided with a second inclined portion adapted to the first inclined portion; after the vertical rod moves downward, it drives the wedge block to move away from the axis of the circular seat through the second inclined portion and the first inclined portion, and causes the extended end of the horizontal sliding column to abut against the inner wall of the cylinder; A spring is sleeved in the transverse sliding column, with one end abutting against the wedge block and the other end abutting against the inner wall of the horizontal sliding cavity, and is used to bounce the wedge block so that the transverse sliding column maintains a tendency to move toward the axial direction of the circular seat.

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