Nut anti-loosening device

Abstract

The utility model relates to vehicle nut anti -loosening technical field, concretely is a nut anti -loosening device, including the tooth cover and flange prong, the top of tooth cover is established with the locating groove, the locating groove penetrates tooth cover, the top fixed mounting of tooth cover has two fixed blocks, the top of fixed block is fixedly connected with the bottom of baffle, the screw hole of baffle outside one end top is connected with the fastening bolt with the internal thread, the fastening nut is connected with fastening bolt on screw thread, the bottom fixed mounting of baffle outside one end has the support block, the bottom of support block is flush with the bottom of tooth cover, the side of flange prong is detachably connected with the divider flange disc through the bolt, the middle part of divider flange disc end surface is provided with the nut, the fastening bolt and support block are tightly in the observation hole, this nut anti -loosening device can effectively limit the rotation of nut, prevents its loosening under the high -frequency vibration and high -speed rotating environment.

Description

Technical Field

[0001] This utility model relates to the field of vehicle nut anti-loosening technology, specifically a nut anti-loosening device. Background Technology

[0002] In the field of special vehicles and construction machinery, transfer cases are widely used, but the fastening nuts of the transfer case flanges are not equipped with anti-loosening devices. In actual operation, the drive shaft flange fork of the special vehicle or construction machinery connects to the transfer case flange and rotates clockwise at high speed. Simultaneously, the vehicle or construction machinery has inherent "resonance points" during operation, generating high-frequency vibrations. Under the combined effect of this high-speed rotation and high-frequency vibration, the transfer case flange fastening nuts are prone to loosening by rotating counterclockwise, and in severe cases, this can lead to the transfer case flange coming off completely. This not only causes significant damage to the special vehicle or construction machinery but also incurs high repair costs, resulting in substantial economic losses and safety hazards for the user. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model discloses a nut anti-loosening device. The technical solution adopted includes a toothed sleeve and a flange fork. The top of the toothed sleeve has a positioning groove that penetrates through the toothed sleeve. Two fixing blocks are fixedly installed on the top of the toothed sleeve. The top of the fixing blocks is fixedly connected to the bottom of a baffle. A fastening bolt is threaded into the screw hole at the top of one outer end of the baffle. A fastening nut is threaded onto the fastening bolt. A support block is fixedly installed at the bottom of one outer end of the baffle. The bottom of the support block is flush with the bottom of the toothed sleeve. A transfer case flange is detachably connected to the side of the flange fork by bolts. A nut is provided in the middle of the end face of the transfer case flange. The toothed sleeve is sleeved on the outside of the nut. An observation hole is provided on the side of the flange fork. The fastening bolt and the support block are pressed against the observation hole.

[0004] As a preferred embodiment of this utility model, the positioning groove is a hexagonal groove or a dodecagonal groove.

[0005] As a preferred technical solution of this utility model, there are two baffles, one end of the inner side of the two baffles is fixedly connected to the top of the two fixing blocks respectively, the top of the two baffles is threaded with fastening bolts, and the bottom of the two baffles is fixedly installed with support blocks.

[0006] As a preferred embodiment of this utility model, the baffle is elongated, the bottom of the baffle is fixedly connected to the top of two fixing blocks, the top of both ends of the baffle is threaded with fastening bolts, and the bottom of both ends of the baffle is fixedly installed with support blocks.

[0007] As a preferred embodiment of this utility model, the baffle is trapezoidal.

[0008] The beneficial effects of this utility model are as follows: Through the cooperation of the baffle, fastening bolts, and support block, this utility model can securely fix the gear sleeve to the drive shaft flange fork, allowing the positioning groove on the gear sleeve to position the nut on the transfer case flange, effectively limiting the rotation of the nut and preventing it from loosening under high-frequency vibration and high-speed rotation. This completely solves the problem of loosening and falling off the transfer case flange fastening nut, ensuring the normal operation of special vehicles and engineering machinery, reducing maintenance costs caused by equipment damage, and possessing significant economic and practical value. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the shape and structure of the double-baffle hexagonal positioning groove of this utility model;

[0010] Figure 2 This is a schematic diagram of the morphological structure of the double-baffle twelve-corner positioning groove of this utility model;

[0011] Figure 3 This is a schematic diagram of the morphological structure of the trapezoidal baffle twelve-corner positioning groove of this utility model;

[0012] Figure 4 This is a schematic diagram of the hexagonal positioning groove structure of the trapezoidal baffle of this utility model;

[0013] Figure 5 This is a schematic diagram of the shape and structure of the hexagonal positioning groove of the long strip baffle of this utility model;

[0014] Figure 6 This is a schematic diagram of the morphological structure of the twelve-corner positioning groove of the long strip baffle of this utility model;

[0015] Figure 7 This is a schematic diagram of the utility model in use.

[0016] In the diagram: 1. Gear sleeve, 2. Positioning groove, 3. Fixing block, 4. Baffle, 5. Fastening bolt, 6. Support block, 7. Flange fork, 8. Nut, 9. Observation hole, 10. Transfer case flange, 11. Fastening nut. Detailed Implementation

[0017] Example 1

[0018] like Figures 1 to 4As shown, this utility model discloses a nut anti-loosening device. The technical solution includes a toothed sleeve 1 and a flange fork 7. The top of the toothed sleeve 1 has a positioning groove 2 that penetrates the toothed sleeve 1. The positioning groove 2 is a hexagonal groove or a dodecagonal groove. Two fixing blocks 3 are fixedly installed on the top of the toothed sleeve 1. The top of the fixing blocks 3 is fixedly connected to the bottom of the baffle 4. A fastening bolt 5 is threaded into the screw hole at the top of one outer end of the baffle 4. A fastening nut 11 is threaded onto the fastening bolt 5. A support block 6 is fixedly installed at the bottom of one outer end of the baffle 4. The bottom of 6 is flush with the bottom of the gear sleeve 1. The side of the flange fork 7 is detachably connected to the transfer case flange 10 by bolts. A nut 8 is provided in the middle of the end face of the transfer case flange 10. The gear sleeve 1 is fitted on the outside of the nut 8. An observation hole 9 is provided on the side of the flange fork 7. The fastening bolt 5 and the support block 6 are pressed against the observation hole 9. There are two baffles 4. One end of the inner side of the two baffles 4 is fixedly connected to the top of the two fixing blocks 3 respectively. The top of the two baffles 4 is threaded with a fastening bolt 5. The bottom of the two baffles 4 is fixedly installed with a support block 6.

[0019] In this embodiment, the baffle 4 has two parts that are lighter in overall weight, and the outside of the positioning groove 2 is not blocked by the baffle 4, which is suitable for cases where the nut 8 is long. Furthermore, the trapezoidal baffle 4 is the preferred form of Embodiment 1 and is suitable for scenarios that require lightweight design.

[0020] Example 2

[0021] like Figures 5 to 6 As shown, this utility model discloses a nut anti-loosening device. The technical solution includes a toothed sleeve 1 and a flange fork 7. The top of the toothed sleeve 1 has a positioning groove 2 that penetrates the toothed sleeve 1. The positioning groove 2 is a hexagonal groove or a dodecagonal groove. Two fixing blocks 3 are fixedly installed on the top of the toothed sleeve 1. The top of the fixing blocks 3 is fixedly connected to the bottom of the baffle 4. A fastening bolt 5 is threaded into the screw hole at the top of one outer end of the baffle 4. A fastening nut 11 is threaded onto the fastening bolt 5. A support block 6 is fixedly installed at the bottom of one outer end of the baffle 4. The bottom of the support block 6 is flush with the bottom of the toothed sleeve 1. The side of the flange fork 7 is detachably connected to the transfer case flange 10 by bolts. A nut 8 is provided in the middle of the end face of the transfer case flange 10. The toothed sleeve 1 is sleeved on the outside of the nut 8. An observation hole 9 is provided on the side of the flange fork 7. The fastening bolt 5 and the support block 6 are pressed against the observation hole 9. The baffle 4 is long and narrow. The bottom of the baffle 4 is fixedly connected to the top of the two fixing blocks 3. The top of both ends of the baffle 4 is threaded with fastening bolts 5. The bottom of both ends of the baffle 4 is fixedly installed with support blocks 6.

[0022] In this embodiment, the elongated baffle 4 connects the two fixing blocks 3 into a whole, which improves the overall strength of the toothed sleeve 1 and the baffle 4, and can better resist the impact of high-frequency vibration and high-speed rotation, and the anti-loosening effect is more stable.

[0023] The working principle of this utility model is as follows: Figure 7 As shown, the flange fork 7 is disassembled from the transfer case flange 10. The gear sleeve 1 is placed on the transfer case flange 10, and the hexagonal or dodecagonal positioning groove 2 on the gear sleeve 1 is fitted onto the nut 8. The flange fork 7 and the transfer case flange 10 are then assembled and installed, so that the two baffles 4 on the gear sleeve 1 enter the two observation holes 9 on both sides of the flange fork 7. At this time, the gear sleeve 1 and the support block 6 are in contact with the end face of the transfer case flange 10. The fastening bolt 5 is turned so that the fastening bolt 5 and the support block 6 are pressed against the observation hole 9, thereby fixing the baffles 4 and the gear sleeve 1. The fastening nut 11 is turned so that the fastening bolt 5 is locked onto the baffles 4, keeping it stable. At this time, the nut 8 is positioned by the fastening bolt 5, the support block 6 and the gear sleeve 1, thereby effectively preventing the nut 8 from loosening.

[0024] It should be noted that the flange fork 7, nut 8, inspection hole 9, and transfer case flange 10 are all existing components. Their structures are described in the specification and drawings to clearly illustrate the technical solution of this utility model, but these components are not within the protection scope of this utility model. Components not described in detail herein are prior art.

[0025] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A nut anti-loosening device, comprising a toothed sleeve (1) and a flange fork (7), characterized in that, The top of the toothed sleeve (1) is provided with a positioning groove (2), which passes through the toothed sleeve (1). Two fixing blocks (3) are fixedly installed on the top of the toothed sleeve (1). The top of the fixing blocks (3) is fixedly connected to the bottom of the baffle (4). A fastening bolt (5) is threaded into the screw hole at the top of the outer end of the baffle (4). A fastening nut (11) is threaded onto the fastening bolt (5). A support block (6) is fixedly installed at the bottom of the outer end of the baffle (4). The bottom of the support block (6) is flush with the bottom of the toothed sleeve (1). A transfer case flange (10) is detachably connected to the side of the flange fork (7) by bolts. A nut (8) is provided in the middle of the end face of the transfer case flange (10). The toothed sleeve (1) is sleeved on the outside of the nut (8). An observation hole (9) is provided on the side of the flange fork (7). The fastening bolt (5) and the support block (6) are pressed against the observation hole (9).

2. The nut anti-loosening device according to claim 1, characterized in that: The positioning groove (2) is a hexagonal groove or a dodecagonal groove.

3. The nut anti-loosening device according to claim 1, characterized in that: Two baffles (4) are provided. One end of the inner side of the two baffles (4) is fixedly connected to the top of the two fixing blocks (3). The top of the two baffles (4) is threaded with fastening bolts (5). The bottom of the two baffles (4) is fixedly installed with support blocks (6).

4. The nut anti-loosening device according to claim 1, characterized in that: The baffle (4) is long and narrow. The bottom of the baffle (4) is fixedly connected to the top of two fixing blocks (3). The top of both ends of the baffle (4) are threaded with fastening bolts (5). The bottom of both ends of the baffle (4) are fixedly installed with support blocks (6).

5. A nut anti-loosening device according to claim 3, characterized in that: The baffle (4) is trapezoidal.

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