A clamping device of a bearing grease seal maintenance tool

Abstract

The utility model relates to the field of sealing member bonding tool discloses a clamping device of bearing lubricating grease seal maintenance frock, including upper pressure piece and lower pressure piece, upper pressure piece and lower pressure piece detachable connection, upper pressure piece and lower pressure piece upper and lower enclose and form the cavity, the seal ring is located in this cavity, the side of upper pressure piece close to the cavity forms the recess, the side of recess close to lower pressure piece extends to the cavity and forms the protruding piece, sets up first antiskid part near protruding piece, the side of protruding piece close to second antiskid part is inclined to set, the inclined plane and the V type groove of seal ring abut, to limit the lateral displacement of seal ring, the side of lower pressure piece close to the cavity is provided with second antiskid part, the side of upper pressure piece away from recess is provided with the inclined plane, the inclined plane and lower pressure piece top combination form has the adjusting part, sets up the adjusting block for adjusting the adjusting part in the upper pressure piece and lower pressure piece to seal ring clamping degree. The utility model intends to solve the problem that the existing frock clamp block structure is difficult to adapt to different size seal ring.

Description

Technical Field

[0001] This utility model relates to the field of sealing bonding tools, specifically to a clamping device for a bearing grease sealing maintenance fixture. Background Technology

[0002] The tooling for bonding split-type seal rings is a key piece of equipment in the replacement process of main bearing seal rings for wind turbine generators. Its structure typically includes a pair of clamps for securing the two ends of the seal ring, a guide rod connecting the clamps, and a locking component. The clamps move towards each other via the guide rod, ensuring alignment of the bonding sections, while the locking component maintains bonding pressure until the adhesive cures. This tooling is designed to improve bonding accuracy and strength, ensuring the sealing performance of the seal ring. This is particularly important in applications involving bearing grease sealing, where the integrity of the seal ring directly affects the sealing effect of the grease and the long-term operational reliability of the bearing. The seal ring used by our company has a trapezoidal cross-section, with an inclined side on the left, a vertical side on the right, and a horizontal side at the bottom. A V-groove is located at the top of the structure, with an arc-shaped transition at the bottom, making the V-groove shape smoother.

[0003] In the prior art, Chinese Patent Publication No. CN203680130U discloses a tooling for bonding split sealing rings, including a pair of clamping blocks for fixing the two ends of the split sealing ring respectively. The pair of clamping blocks are connected by a guide rod and can move towards each other along the axial direction of the guide rod, and there is no rotation between the clamping blocks and the guide rod. This utility model can accurately align the bonding sections at both ends of the sealing ring through the guide rod, and can further use locking components to clamp the two ends of the sealing ring, so that all areas of the sealing ring cross-section are subjected to uniform force during bonding, thereby ensuring bonding strength and guaranteeing the sealing performance of the sealing ring.

[0004] However, the above-mentioned prior art still has the following defects when used for the maintenance of bearing grease seals: the structure of the clamping block is relatively rigid and the structure of the clamping block is fixed, making it difficult to ideally adapt to flexible seals of different sizes. Furthermore, under dynamic working conditions such as high-temperature curing, the grease may cause slippage at the point where the clamping block and the seal are to come into contact, resulting in insufficient uniformity and stability of the clamping force. Utility Model Content

[0005] The present invention aims to provide a clamping device for a bearing grease sealing maintenance fixture, so as to solve the problem that the existing fixture clamping block structure is difficult to adapt to sealing rings of different sizes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A clamping device for a bearing grease sealing maintenance fixture includes an upper pressure block and a lower pressure block, which are locked together by a locking member. The upper and lower pressure blocks form a cavity, and a sealing ring is located in the cavity. A groove is formed on the side of the upper pressure block near the cavity, and a protrusion extends into the cavity from the side of the groove near the lower pressure block. A first anti-slip part is provided next to the protrusion. The side of the protrusion near the second anti-slip part is inclined, and the inclined surface abuts against the V-groove of the sealing ring to limit the lateral movement of the sealing ring. A second anti-slip part is provided on the side of the lower pressure block near the cavity. A slope is provided on the side of the upper pressure block away from the groove. The slope and the top of the lower pressure block combine to form an adjustment part, which contains an adjustment block for adjusting the clamping degree of the upper and lower pressure blocks on the sealing ring.

[0007] Beneficial effects: 1. The upper and lower pressure blocks form a cavity to clamp the sealing ring in a wrapping manner. With the design of the first and second anti-slip parts, the surface of the sealing ring can be deformed and embedded into the anti-slip structure when locked, which significantly increases the friction and effectively prevents the sealing ring from slipping during operation, ensuring the stability and safety of maintenance work.

[0008] 2. By utilizing the cooperative structure of the adjusting block and the adjusting part, the clamping force of the upper and lower pressure blocks on the sealing ring can be flexibly adjusted, which can adapt to the maintenance needs of sealing rings of different sizes, materials or wear levels, thus expanding the applicability of the device.

[0009] 3. The locking mechanism enables the upper and lower pressure blocks to be quickly locked and released. Combined with the sliding adjustment method of the adjusting block, the clamping and tension adjustment process of the sealing ring is simplified, the operation steps are reduced, and the work efficiency of bearing grease sealing maintenance is improved.

[0010] 4. The overall structure achieves precise positioning and secure clamping of the sealing ring through the cooperation of multiple parts, avoiding the displacement or detachment of the sealing ring during maintenance, ensuring the quality of maintenance work, and extending the service life of the tooling itself.

[0011] 5. The protrusions that abut against the V-groove of the sealing ring can precisely constrain the position of the sealing ring from the side, preventing it from shifting to one side during clamping or stretching. This further improves the positioning accuracy of the sealing ring, ensuring that the sealing ring is subjected to uniform force during maintenance operations and avoiding localized wear or damage to the sealing performance caused by shifting.

[0012] Preferably, as an improvement, each of the first anti-slip parts and the second anti-slip parts is evenly arranged along the width direction of the upper pressure block and extends along the length direction of the upper pressure block.

[0013] Beneficial effects: The evenly distributed first and second anti-slip parts can make the top and bottom of the sealing ring more evenly stressed, and the structure extending in the length direction can make the sealing ring more fully in contact. Combined with the positioning function of the protrusion, it not only enhances the anti-slip effect, but also avoids uneven deformation of the sealing ring caused by local stress concentration, and improves the stability of clamping.

[0014] Preferably, as an improvement, the lower pressure block includes a base plate and a support plate for limiting the sealing ring, the support plate is fixedly disposed on the base plate, the top of the support plate is connected to the upper pressure block by a locking member, and the second anti-slip part is located on the base plate.

[0015] Beneficial effects: The base plate and support plate form a two-way constraint on the bottom and the other side of the sealing ring, which, together with the protrusion of the upper pressure block, forms an enclosed positioning, which fully restricts the displacement of the sealing ring; and the one-piece molding structure enhances the overall strength of the lower pressure block, prevents the parts from loosening under stress, and extends the service life of the tooling.

[0016] Preferably, as an improvement, the adjusting block is a wedge-shaped block, the height of which gradually decreases along the width direction of the lower pressing block, and the contour of the adjusting part formed by the upper pressing block and the top of the support plate matches the adjusting block.

[0017] Beneficial effects: The wedge structure allows the clamping force to be adjusted precisely by changing the height of the upper and lower pressure blocks during the sliding process of the adjusting block, thus adapting to sealing rings of different thicknesses or hardnesses; the contour matching between the adjusting part and the adjusting block ensures the smoothness of the adjustment process and avoids jamming or adjustment failure.

[0018] Preferably, as an improvement, the adjusting block is provided with a U-shaped groove in the middle, which passes through the outer periphery of the locking member.

[0019] Beneficial effects: The U-shaped groove passing through the outer periphery of the locking component provides a guide for the adjusting block, ensuring its stable movement along the preset direction without affecting the locking function of the locking component. This allows the adjustment and locking operations to operate independently, improving the convenience of operation and the compactness of the structure.

[0020] Preferably, as an improvement, the lower pressure block is also connected to a mounting block for a tension clamping device, the mounting block being located below the adjusting block.

[0021] Beneficial effects: The mounting block provides a dedicated connecting carrier for the stretching tool, avoiding structural damage caused by applying force directly to the pressure block; and the position of the mounting block does not interfere with the operating space of the adjusting block, so that the adjustment clamping and stretching operations do not interfere with each other, thus optimizing the overall operation process.

[0022] Preferably, as an improvement, the mounting block has a fixing hole for fixing the tensioning buckle on the side near the adjusting block.

[0023] Beneficial effects: The fixing holes can quickly position and securely install the tension buckle, ensuring that the tension buckle does not fall off or shift during the transmission of tensile force, thus improving the safety of tensile operations.

[0024] Preferably, as an improvement, the mounting block has a positioning hole for mounting the tensioning clamp on the side adjacent to the fixing hole.

[0025] Beneficial effects: The positioning holes provide a precise installation position for the tensioning pliers, ensuring that the force applied by the tensioning pliers is consistent with the force direction of the tensioning buckle, reducing force loss; and the adjacent fixing holes and positioning holes make the layout of the entire device more compact, making it easier for operators to operate and thus improving work efficiency.

[0026] Preferably, as an improvement, the side of the base plate away from the support plate extends along the cavity direction to form a snap-fit ​​block, which is used to restrict the bottom of the sealing ring.

[0027] Beneficial effects: The snap-fit ​​block formed by the extension of the base plate directly limits the bottom of the sealing ring, which can effectively prevent the sealing ring from moving along the V-groove direction of the sealing ring during the movement of the clamping device, thereby preventing it from detaching from the cavity or causing the sealing surface to not fit tightly. This reduces the failure of sealing ring adhesion from the root and ensures the long-term reliable operation of the sealing system. Attached Figure Description

[0028] Figure 1 This is a schematic diagram illustrating the use of this utility model.

[0029] Figure 2 This is a structural schematic diagram of Embodiment 1 of the present utility model.

[0030] Figure 3 This is a cross-sectional view of Embodiment 1 of the present utility model.

[0031] Figure 4 This is a front view of Embodiment 1 of the present utility model.

[0032] Figure 5 This is a left view of Embodiment 1 of the present utility model.

[0033] Figure 6 This is a cross-sectional view of Embodiment 2 of the present invention.

[0034] The reference numerals in the accompanying drawings include: upper pressure block 1, cavity 11, first anti-slip part 12, protrusion 13, lower pressure block 2, second anti-slip part 21, second limiting part 22, snap-fit ​​block 23, locking part 3, adjusting part 4, U-shaped groove 41, mounting block 5, positioning hole 51, fixing hole 52, and sealing ring 6. Detailed Implementation

[0035] The following detailed description illustrates the specific implementation method: Example 1 is basically as shown in the attached document. Figure 1 As shown: like Figures 1-3 As shown, this embodiment provides a clamping device for a bearing grease sealing maintenance fixture, including an upper pressure block 1 and a lower pressure block 2. The upper pressure block 1 and the lower pressure block 2 are locked and fixed by a locking member 3. In this embodiment, the locking member 3 is a bolt. The upper pressure block 1 and the lower pressure block 2 form a cavity 11 by their upper and lower sides. The sealing ring 6 is located in the cavity 11. Specifically, a groove is formed on the side of the upper pressure block 1 near the cavity 11, and a protrusion 13 extends into the cavity 11 from the side of the groove near the lower pressure block 2. A first anti-slip part 12 is provided next to the protrusion 13. The protrusion 13 is inclined on the side near the second anti-slip part 21, and the inclined surface abuts against the V-groove 41 of the sealing ring 6 to limit the lateral movement of the sealing ring 6; the lower pressure block 2 includes a base plate and a support plate, the support plate is fixedly mounted on the base plate, and the second limiting part 22 on the inner side of the base plate and the support plate fits against the outer side of the sealing ring 6 to prevent the sealing ring 6 from moving. The second anti-slip part 21 is provided on the side of the base plate near the cavity 11. The first anti-slip parts 12 and the second anti-slip parts 21 are evenly arranged along the width direction of the upper pressure block 1 and extend along the length direction of the upper pressure block 1.

[0036] like Figure 2 and Figure 4 As shown, each of the first anti-slip parts 12 and the second anti-slip parts 21 is a groove extending along the length direction, so that when the locking member 3 is turned, the sealing ring 6 deforms and gets stuck in the groove, so that when the operator pulls the clamping device, the sealing ring 6 slips. Each of the second anti-slip parts 21 is set on the base plate and is evenly arranged along the width direction of the base plate.

[0037] like Figure 1 and Figure 4 As shown, the upper pressure block 1 has a sloping surface on the side away from the groove. This sloping surface, combined with the top of the support plate, forms an adjustment section 4. The adjustment section 4 contains an adjustment block for adjusting the clamping tightness of the upper pressure block 1 and the lower pressure block 2 on the sealing ring 6. Specifically, the adjustment block is a wedge-shaped block, and its height gradually decreases along the width direction of the lower pressure block 2. The contour of the adjustment section 4 formed by the upper pressure block 1 and the top of the support plate matches the adjustment block. A U-shaped groove 41 is provided in the middle of the adjustment block, and this U-shaped groove 41 passes through the outer periphery of the locking member 3.

[0038] like Figure 1 As shown, the lower pressure block 2 is also connected to a mounting block 5 for a tension clamping device. The mounting block 5 is located below the adjusting block. The mounting block 5 is provided with a fixing hole 52 for fixing the tension buckle on the side near the adjusting block. The mounting block 5 is provided with a positioning hole 51 for installing the tension clamp on the side near the fixing hole 52.

[0039] The specific installation process of the above-mentioned device is as follows: First, place the bottom plate of the lower pressure block 2 under the sealing ring 6 to be maintained, ensuring that the side of the sealing ring 6 away from the first limiting part 13 is attached to the inner side of the support plate, and use the bottom plate and the support plate to initially limit the position of the sealing ring 6. Then, cover the lower pressure block 2 with the upper pressure block 1, so that the first limiting part 13 on the inner wall of the upper pressure block 1 fits against the contour of the sealing ring 6 near that side, further preventing the sealing ring 6 from shifting. At this time, the upper pressure block 1 and the lower pressure block 2 form a cavity 11 to accommodate the sealing ring 6. There is a gap between the upper pressure block 1 and the lip of the sealing ring 6 to protect the lip. The top and bottom of the sealing ring 6 abut against the inner walls of the upper pressure block 1 and the lower pressure block 2, respectively. Tighten the locking part 3 to make the upper pressure block 1 and the lower pressure block 2 initially close together. At this time, the adjusting block 4 is in the initial position in the adjusting part, and the upper pressure block 1 and the lower pressure block 2 initially clamp the sealing ring 6. Next, based on the actual size of the sealing ring 6 and maintenance requirements, the clamping degree is adjusted by pushing the adjusting block 4 to slide along the width direction of the lower pressure block 2. Since the height of the adjusting block 4 gradually decreases along this direction, its fit with the adjusting part changes when the adjusting block 4 is slid, causing a change in the distance between the upper pressure block 1 and the lower pressure block 2: sliding in the direction of increasing height increases the clamping degree; sliding in the direction of decreasing height decreases the clamping degree. Until the first anti-slip part 12 and the second anti-slip part 21 on the upper pressure block 1 and the lower pressure block 2 are in close contact with the sealing ring 6, and the sealing ring 6 deforms and engages in the groove, the locking member 3 is tightened so that the upper pressure block 1 and the lower pressure block 2 can clamp the sealing ring. The tensioning buckle is fixed in the fixing hole 52 of the mounting block 5, and the tensioning clamp is installed in the positioning hole 51 adjacent to the fixing hole 52. The operator manipulates the tensioning clamp, using the tensioning buckle to transmit tension, causing the entire clamping device and the sealing ring 6 in the cavity 11 to move or stretch, completing the maintenance work of the bearing grease seal.

[0040] like Figure 1 As shown, the usage process is as follows: After the device is installed on both sides of the sealing ring 6 through the above installation process, one end of the tension rope is fitted into the connecting hole in the second mounting part of one of the clamping mechanisms, and the other end is connected to the locking buckle. Then, the two clamps of the tension clamp are inserted into the first positioning hole 51 on the first mounting part on the left and the second positioning hole 51 on the locking buckle, respectively. The tension clamp is then operated to apply a pushing force smoothly, pushing the locking buckle body to move around its connection point with the first mounting part, thereby pulling the tensioning member and pulling the sealing ring 6 end face on the right to move to the left until the two end faces of the sealing ring 6 are tightly and evenly fitted into place. Then, the fixing member is passed through the fixing hole 52 of the locking buckle bend and firmly connected to the first mounting part of the clamping mechanism on the left side of the sealing ring 6. Finally, after maintaining the tension and completing the subsequent permanent fixation, the pressure of the tension clamp is released, and the tension clamp, tension rope, locking buckle and clamping device are disassembled in reverse order.

[0041] Example 2 The difference between this embodiment and Embodiment 1 is that there is a snap-fit ​​block 23 on the base plate. In order to prevent the sealing ring from falling off along the unconnected part of the lower pressure block 2 and the upper pressure block 1, this embodiment has a snap-fit ​​block 23 on the side of the base plate away from the support plate.

[0042] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A clamping device for a bearing grease sealing maintenance fixture, characterized in that: The device includes an upper pressure block and a lower pressure block, which are locked together by a locking device. The upper and lower pressure blocks form a cavity, and a sealing ring is located inside the cavity. A groove is formed on the side of the upper pressure block near the cavity, and a protrusion is formed by extending the groove into the cavity. A first anti-slip part is provided next to the protrusion. The side of the protrusion near the first anti-slip part is inclined, and the inclined surface abuts against the V-groove of the sealing ring to limit the lateral movement of the sealing ring. A second anti-slip part is provided on the side of the lower pressure block near the cavity. A slope is provided on the side of the upper pressure block away from the groove. The slope and the top of the lower pressure block combine to form an adjustment part. An adjustment block is provided in the adjustment part for adjusting the clamping degree of the upper and lower pressure blocks on the sealing ring.

2. The clamping device for a bearing grease sealing maintenance fixture according to claim 1, characterized in that: The first and second anti-slip parts are evenly arranged along the width direction of the upper pressure block and extend along the length direction of the upper pressure block.

3. The clamping device for a bearing grease sealing maintenance fixture according to claim 2, characterized in that: The lower pressure block includes a base plate and a support plate for limiting the sealing ring. The support plate is fixedly mounted on the base plate. The top of the support plate is connected to the upper pressure block by a locking member, and the second anti-slip part is located on the base plate.

4. The clamping device for a bearing grease sealing maintenance fixture according to claim 1, characterized in that: The adjusting block is a wedge-shaped block, and the height of the adjusting block gradually decreases along the width direction of the lower pressing block. The contour of the adjusting part formed by the upper pressing block and the top of the support plate matches the adjusting block.

5. The clamping device for a bearing grease sealing maintenance fixture according to claim 4, characterized in that: The adjusting block has a U-shaped groove in the middle, which is slidably connected to the outer periphery of the locking element.

6. The clamping device for a bearing grease sealing maintenance fixture according to claim 1, characterized in that: The pressure block is also connected to a mounting block for a tension clamping device, which is located below the adjusting block.

7. The clamping device for a bearing grease sealing maintenance fixture according to claim 6, characterized in that: The mounting block has a fixing hole on the side near the adjusting block for securing the tensioning buckle.

8. The clamping device for a bearing grease sealing maintenance fixture according to claim 7, characterized in that: The mounting block has a positioning hole for installing tensioning clamps on the side adjacent to the fixing hole.

9. The clamping device for a bearing grease sealing maintenance fixture according to claim 2, characterized in that: The side of the base plate away from the support plate extends along the cavity direction to form a snap-fit ​​block, which is used to restrict the bottom of the sealing ring.

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