Split flange

Abstract

The utility model discloses a kind of split type connecting flanges, it is related to flange technical field, including two groups of flange components, the similar side of two flange components is equipped with arc slot, and arc slot is equipped with the insertion rib of being inserted in piston rod side recess, to when two flange components are relied on arc slot and are set in piston rod outside, insertion rib is inserted in piston rod side recess;Through hole for being used for fastening bolt installation is opened in flange component, to when fastening bolt is placed on through hole and is screwed on base, the connection of flange component and base is realized.The utility model split type flange component is combined by arc slot and insertion rib, the efficient positioning and anti-rotation function of piston rod are realized, the cooperation of through hole and fastening bolt makes rigid connection between flange and base.Form split type structure is convenient to disassemble and can be assembled and connected at any position of piston rod side, so that flange cannot be subsequently assembled component shielding package, avoids subsequent inconvenient maintenance situation.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically to a split-type connecting flange. Background Technology

[0002] In the existing installation and operation system of dry ice briquetting machines, the hydraulic cylinder, as the core power output unit, needs to achieve rigid linkage with the equipment base through a specific mechanical interface to ensure that the base can accurately perform reciprocating stamping actions during the briquetting process. Currently, the industry commonly uses integrated flange structures such as weld neck flanges (WN type) or plate flat-welded flanges (SO type) to connect the end of the cylinder piston rod to the base. These flanges form a non-removable integral structure with the piston rod end face and the base bearing surface through high-strength welding or precision bolt assemblies. Their advantage lies in their ability to withstand impact loads as high as 50-150MPa generated during dry ice briquetting, and the tight fit of the metal contact surfaces achieves dynamic sealing, preventing high-pressure oil leakage.

[0003] However, in actual working conditions, the modular assembly design of the briquetting machine requires the hydraulic system, transmission mechanism, and auxiliary components (such as temperature sensors and lubrication lines) to be densely arranged around the cylinder-base connection node. This layout results in the connection interface between the cylinder piston rod end and the base being partially or completely enclosed within the equipment's internal enclosed space by multiple layers of functional components (such as hydraulic valve group supports, guide rail fixing seats, and cooling pipe clamps). When the base wears or deforms due to long-term high-pressure impact, or when a customized base suitable for different mold specifications needs to be replaced, technicians must remove the outer shielding components one by one to expose the flange connection area for maintenance operations.

[0004] Therefore, while the existing rigid connection scheme based on an integrated flange meets the high-intensity operation requirements of dry ice briquetting machines, it creates a structural contradiction with their modular maintenance needs. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the prior art by proposing a split-type connecting flange. The connecting flange, through its split-type and insert design, enables the base to be installed and connected at any position on the side of the piston rod, so that the flange will not be obstructed or covered by the subsequently assembled components, thus avoiding the situation where subsequent maintenance is inconvenient.

[0006] To solve the above problems, this utility model provides the following technical solution:

[0007] A split-type connecting flange includes two sets of flange components that are adapted to each other and detachably connected. Both flange components have arc-shaped grooves on their adjacent sides, and insert ribs that can be inserted into grooves on the side of a piston rod are provided within the arc-shaped grooves. When the two flange components are held against the outside of the piston rod by the arc-shaped grooves, the insert ribs are inserted into the grooves on the side of the piston rod, thus connecting the flange components to the piston rod. The flange components have through holes for installing fastening bolts, so that when the fastening bolts are placed in the through holes and tightened onto the base, the flange components are connected to the base.

[0008] As a further embodiment of this invention, the connecting flange also includes a locking element for enabling a detachable connection between the two flange components.

[0009] As a further embodiment of this utility model: the locking component includes connecting ears respectively provided on the two flange components. When the two flange components are held by the arc groove outside the piston rod, the connecting ears on the two flange components are arranged opposite to each other and connected by locking bolts.

[0010] As a further embodiment of this utility model: the locking component includes a plug and a slot respectively disposed on the two flange components. When the two flange components are held against the outside of the piston rod by means of the arc groove, the plug and the slot are arranged opposite to each other and the plug is inserted into the slot.

[0011] As a further embodiment of this utility model: the flange component is provided with a limiting bolt at the outer periphery of the slot, and one end of the limiting bolt can extend into the slot. The insert block is provided with a threaded hole along the length direction of the limiting bolt, so that when the limiting bolt is tightened, the end of the limiting bolt located in the slot is installed on the threaded hole.

[0012] As a further embodiment of this utility model: the insert and the slot together form a point limiting structure, and the point limiting structure is set into two groups and evenly distributed on the two flange components.

[0013] As a further embodiment of this utility model: the insertion edge is arranged along the arc length direction of the arc groove.

[0014] As a further embodiment of this utility model: the insert and slot on the same flange component are located on both sides of the arc groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The split-type flange assembly achieves efficient positioning and anti-rotation of the piston rod through a combination of arc-shaped grooves and insert ribs. The insert ribs' embedding into the piston rod grooves ensures axial fixation while preventing radial slippage, significantly improving connection stability. Simultaneously, the through-hole and fastening bolts create a rigid connection between the flange and the base, simplifying the installation process. The split structure facilitates disassembly and allows for assembly and connection at any position on the side of the piston rod, preventing the flange from being obstructed or enclosed by subsequently assembled components, thus avoiding difficulties in future maintenance and repair.

[0017] 2. By introducing independent locking mechanisms to achieve a detachable connection between the two flange components, the flexibility of the split structure is further enhanced. The presence of the locking mechanisms not only strengthens the overall structural strength of the flanges but also disperses stress concentration under complex operating conditions, reducing the risk of component deformation. The detachable design allows for partial maintenance without completely disassembling the flanges, significantly shortening maintenance time and improving equipment operating efficiency.

[0018] 3. The use of symmetrically distributed connecting ears and locking bolts as the locking mechanism offers advantages in terms of mechanical optimization and ease of operation. The symmetrical layout of the connecting ears ensures even distribution of locking force, avoiding uneven load problems caused by unilateral force application; the locking bolts provide adjustable preload, which can adapt to dynamic working conditions such as thermal expansion, and can also achieve precise installation through torque control.

[0019] 4. The mechanical interlocking structure between the insert and the slot achieves rapid positioning through geometric fit, offering significant advantages in assembly efficiency. When the insert is inserted into the slot, it forms a physical limit, effectively resisting circumferential shear forces, making it particularly suitable for industrial environments with high-frequency vibration. This boltless, purely mechanical locking method reduces the number of parts, lowers maintenance costs, and the plug-in design provides intuitive assembly feedback, reducing the probability of misoperation.

[0020] 5. The innovative combination of the limit bolt and threaded hole achieves a dual locking mechanism. The limit bolt can both constrain the axial displacement of the insert and generate additional preload through thread engagement, forming a dynamic compensation capability. When the insert develops gaps due to wear, simply retightening the limit bolt restores the connection accuracy, greatly extending the service life of the flange.

[0021] 6. The layout strategy of placing the insert and slot on both sides of the arc-shaped groove achieves a balance between functional zoning and structural compactness. This arrangement ensures the physical isolation of the locking mechanism and the positioning mechanism, avoiding functional interference, and also forms a self-balancing structure through symmetrical distribution, offsetting residual stress during assembly. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a front view schematic diagram of the structure of this utility model. Figure 1;

[0024] Figure 2 This is a front view schematic diagram of the structure of this utility model. Figure 2 ;

[0025] Figure 3 This is a three-dimensional structural diagram of a flange component in this utility model.

[0026] In the diagram: 1. Flange component; 2. Arc groove; 3. Insert rib; 4. Through hole; 5. Fastening bolt; 6. Connecting lug; 7. Locking bolt; 8. Insert block; 9. Slot; 10. Limit bolt; 11. Threaded hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-3 As shown, a split-type connecting flange is used to connect the side of the piston rod of the hydraulic cylinder to the base, instead of the conventional connection of the end of the piston rod to the base. This change in connection position allows the base to be installed at any side of the piston rod, avoiding the inconvenience of base maintenance, disassembly and replacement in the prior art.

[0029] Specifically, the connecting flange includes two sets of mating flange components 1. Both flange components 1 have arc-shaped grooves 2 on their adjacent sides, and insertion ribs 3 are provided within the arc-shaped grooves 2. The insertion ribs 3 are arranged along the arc length of the arc-shaped grooves 2. Correspondingly, a groove is provided on the side of the piston rod. The size and shape of the groove are adapted to the insertion ribs 3. During installation, the flange component 1 can be placed on the side of the piston rod by relying on the fitting of the insertion ribs 3 and the groove, thus achieving the connection between the flange component 1 and the piston rod. This connection direction is the piston rod axial direction. Simultaneously, a through hole 4 is provided on the flange component 1, through which fastening bolts 5 can pass. When the base is placed at the corresponding position on the side of the piston rod, the fastening bolts 5 are tightened onto the base, achieving the connection between the flange component 1 and the base.

[0030] In summary, flange component 1 serves as a connector between the piston rod and the base. The connection between flange component 1 and the side of the piston rod is a plug-in joint, which is simple to operate. This plug-in joint method allows for quick connection between flange component 1 and the piston rod, and the connection position can be anywhere on the side of the piston rod, not limited to the end, thus increasing its applicability. Furthermore, the ability to connect flange component 1 at any position on the side of the piston rod allows for adjustment of its position. Therefore, the installation position of flange component 1 can be planned in advance based on the positions of components to be assembled on the subsequent briquetting machine, ensuring that flange component 1 is not obstructed or enclosed by subsequently assembled components, avoiding inconvenience for future maintenance.

[0031] To prevent shearing forces from occurring between the two flange components 1 during use, this application provides a detachable connection between the two flange components 1, achieved using locking mechanisms. Three types of locking methods are provided below:

[0032] 1) First locking method: such as Figures 1-2 As shown, the locking component includes connecting lugs 6 respectively disposed on two flange members 1, where the two flange members 1 are in a... Figure 1 In the shown relative arrangement, the two connecting ears 6 are arranged opposite each other. When the two flange components 1 are mounted on the side of the piston rod by the insertion edge 3, the two connecting ears 6 in this arrangement can be connected by locking bolts 7. This locking method securely connects the two flange components 1, improving the connection stability between the base and the piston rod. It should be noted that, in order to further improve the connection stability, when the two connecting ears 6 are both located on the same side of the two flange components 1, two connecting ears 6 can also be provided on the other side of the two flange components 1.

[0033] 2) Second locking method: such as Figure 3 As shown, the locking mechanism includes a plug 8 on one flange member 1 and a slot 9 on the other flange member 1. When the two flange members 1 are held against the outside of the piston rod by the arc groove 2, the plug 8 and the slot 9 are arranged opposite each other, and the plug 8 is fitted into the slot 9. The two flange members 1 can be locked by the plug-in engagement between the plug 8 and the slot 9. To further improve the stability of the locking connection, when the plug 8 and the slot 9 together form a point limiting structure, the point limiting structure is set into two sets and evenly distributed on the two flange members 1. At the same time, to further improve the locking effect, when two sets of plug 8 and two sets of slot 9 are provided, the four are arranged in a cross layout, that is, plug 8 and slot 9 are provided on the same flange member 1. This state can be achieved by... Figure 3 To represent this, in order to balance and adapt the piston rod's position to the locking effect produced by the second locking method, this application preferably uses... Figure 3 The insert 8 and slot 9 in the layout are respectively located on both sides of the arc-shaped slot 2.

[0034] 3) Third locking method: Combine the first and second locking methods mentioned above to make the two flange components 1 have a uniform multiple locking effect.

[0035] Furthermore, in the second locking method described above, in order to prevent the insert 8 from moving within the slot 9, a limiting bolt 10 can be provided at the outer periphery of the flange component 1 located in the slot 9, and one end of the limiting bolt 10 can extend into the slot 9. A threaded hole 11 is provided on the insert 8 along the length direction of the limiting bolt 10, so that when the limiting bolt 10 is tightened, the end of the limiting bolt 10 located in the slot 9 is installed in the threaded hole 11, thereby achieving stable locking of the insert 8 within the slot 9.

[0036] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A split-type connecting flange, characterized in that, The system includes two sets of flange components (1) that are adapted to each other and detachably connected. Both flange components (1) have arc-shaped grooves (2) on their adjacent sides, and the arc-shaped grooves (2) are provided with insert ribs (3) that can be inserted into the grooves on the side of the piston rod. When the two flange components (1) are held against the outside of the piston rod by the arc-shaped grooves (2), the insert ribs (3) are inserted into the grooves on the side of the piston rod to realize the connection between the flange components (1) and the piston rod. The flange components (1) are provided with through holes (4) for installing fastening bolts (5) so that when the fastening bolts (5) are placed on the through holes (4) and tightened on the base, the flange components (1) are connected to the base.

2. A split-type connecting flange according to claim 1, characterized in that, The connecting flange also includes a locking element for enabling a detachable connection between the two flange components (1).

3. A split-type connecting flange according to claim 2, characterized in that, The locking element includes connecting ears (6) respectively provided on the two flange members (1). When the two flange members (1) are held on the outside of the piston rod by the arc groove (2), the connecting ears (6) on the two flange members (1) are arranged opposite to each other and connected by locking bolts (7).

4. A split-type connecting flange according to claim 2, characterized in that, The locking element includes a plug (8) and a slot (9) respectively disposed on the two flange members (1). When the two flange members (1) are held against the outside of the piston rod by the arc groove (2), the plug (8) and the slot (9) are arranged opposite to each other and the plug (8) is inserted into the slot (9).

5. A split-type connecting flange according to claim 4, characterized in that, The flange component (1) is provided with a limiting bolt (10) at the outer periphery of the slot (9), and one end of the limiting bolt (10) can extend into the slot (9). The insert (8) is provided with a threaded hole (11) along the length direction of the limiting bolt (10), so that when the limiting bolt (10) is tightened, one end of the limiting bolt (10) located in the slot (9) is installed on the threaded hole (11).

6. A split-type connecting flange according to claim 4 or 5, characterized in that, The insert (8) and slot (9) together form a point limiting structure, which is set into two groups and evenly distributed on the two flange components (1).

7. A split-type connecting flange according to any one of claims 1-5, characterized in that, The insertion edge (3) is arranged along the arc length direction of the arc groove (2).

8. A split-type connecting flange according to claim 6, characterized in that, The insert (8) and slot (9) on the same flange member (1) are located on both sides of the arc groove (2).

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