Novel bolt anti-loosening structure

Abstract

The utility model relates to a novel bolt anti-loosening structure which comprises a bearing seat body connected through three outer hexagon bolts arranged in a triangular shape, and supporting columns are arranged on the bearing seat body and located between every two of the three outer hexagon bolts. The tops of the three supporting columns are fixedly provided with trefoil anti-loosening pieces which are located among the three outer hexagon bolts, the tops of the trefoil anti-loosening pieces do not exceed the tops of the outer hexagon bolts, three blades are arranged at the three ends of each trefoil anti-loosening piece, a through hole is formed in the middle of each trefoil anti-loosening piece, and a connecting bolt connected with the top of the bearing seat body is installed in each through hole. And the three blades are respectively and fixedly provided with separation blades which are in full contact with the three outer hexagon bolts. The novel bolt anti-loosening structure provided by the utility model is high in mounting precision, and can effectively identify and replace a broken bolt from the appearance, so that the service life of a transmission shaft is prolonged, and the reliability of the transmission shaft is improved.

Description

Technical Field

[0001] The utility model relates to the field of transmission shaft manufacturing, in particular to a novel bolt anti-loosening structure. Background Art

[0002] At present, there are various methods for preventing bolts from loosening in the industry, including adding a stop / anti-loosening washer at the nut position, applying thread-specific fastening glue on the thread, using self-locking nuts, split pins to prevent loosening, and connecting steel wires in series with bolt groups. However, the above anti-loosening methods are all measures for the case where there are nuts, and are not very applicable to the case of bearing seat bolts (without nuts) such as SWZ-type joints. Figure 8-10 As shown, the bearing seat body 6 is connected to the connecting bolt hole 63 opened on the bearing seat body 6 by a plurality of hexagonal bolts 3 (usually 3 hexagonal bolts are a group) arranged in a triangle. The traditional anti-loosening method of the bearing seat bolts (without nuts) is: a triangular anti-loosening plate 7 is used on the top of the bearing seat to weld the heads of a group of hexagonal bolts 3 at this position, thereby playing an anti-loosening role. Under normal circumstances, this type of anti-loosening device can indeed play a good anti-loosening effect, but if one of the bolts in this group of bolts breaks (because the traditional anti-loosening method is to weld the bolt and the anti-loosening plate into one body), it is difficult for the user to distinguish it from other normal bolts in appearance, and it is impossible to replace the new bolts as soon as possible, which will eventually cause the entire group of bolts to break, and then cause the joints or even the transmission shaft to break, resulting in major accidents such as production site shutdown, and increasing production costs. Utility Model Content

[0003] In view of the deficiencies in the background technology, the utility model provides a novel bolt anti-loosening structure, which has high installation accuracy and can effectively identify broken bolts from the appearance and replace them, thereby improving the service life and reliability of the transmission shaft.

[0004] The technical solution of the utility model to solve the technical problem is as follows:

[0005] The utility model discloses a novel bolt anti-loosening structure, comprising a bearing seat body connected by three external hexagonal bolts arranged in a triangle shape, support columns are respectively arranged on the bearing seat body between the three external hexagonal bolts, three leaf-shaped anti-loosening sheets are fixedly arranged on the tops of the three support columns, the three leaf-shaped anti-loosening sheets are located between the three external hexagonal bolts and the tops do not exceed the tops of the external hexagonal bolts, the three leaf-shaped anti-loosening sheets do not contact the external hexagonal bolts, the three ends of the three leaf-shaped anti-loosening sheets are respectively three leaf-shaped sheets, the middle part of the three leaf-shaped anti-loosening sheets are provided with through holes, the connecting bolts connected to the top of the bearing seat body are installed in the through holes, and the three leaf-shaped sheets are respectively fixedly arranged with baffles which fully contact the three external hexagonal bolts.

[0006] Furthermore, inner holes are respectively opened at corresponding positions of each support column on the bearing seat body, and the support column includes an upper column body and a lower column foot. The top of the upper column body is welded and fixed to the bottom of the three-leaf anti-loosening plate, and the lower column foot is adapted to the inner hole and arranged in the inner hole.

[0007] Furthermore, the inner diameter of the inner hole is 7 mm.

[0008] Furthermore, a threaded hole is provided on the bearing seat body at a position corresponding to the through hole of the three-leaf anti-loosening piece, and the bottom of the connecting bolt is connected to the threaded hole.

[0009] Furthermore, each of the blocking pieces is respectively welded and fixed to the three-leaf anti-loosening piece.

[0010] Furthermore, the top of the connecting bolt is welded and fixed to the three-leaf anti-loosening piece.

[0011] Furthermore, the connecting bolts are hexagon socket bolts.

[0012] Furthermore, the top of the connecting bolt does not exceed the top of the hexagonal bolt by 10 mm.

[0013] Furthermore, the three blades of the three-leaf anti-loosening piece are connected in pairs through three arcs, which are the first blade and / or the second blade. A baffle is respectively arranged on both sides of the upper surface of the first blade, and a baffle is fixedly arranged on one side of the upper surface of the second blade.

[0014] Furthermore, each of the blocking pieces does not contact the connecting bolts.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The utility model has novel, concise and reasonable design, is easy to manufacture and use, has low cost and good effect.

[0017] (2) The utility model sets a support column to limit the installation. Compared with the traditional welding bolt anti-loosening method, the structure has high installation accuracy and can prevent the three-leaf anti-loosening plate from contacting the hexagonal bolts, thereby improving the reliability of anti-loosening.

[0018] (3) The utility model provides a baffle plate on the three-leaf anti-loosening plate that is in full contact with the external hexagonal bolt. While preventing the external hexagonal bolt from loosening, if the external hexagonal bolt breaks, the user can intuitively identify the broken bolt (the bolts in this group are integrated and will separate automatically if broken), and the user can replace them in time, thereby extending the service life and reliability of the transmission shaft.

[0019] (4) The utility model can ensure that the connecting bolt will not loosen after long-term use by welding the hexagon socket connecting bolt to the three-leaf anti-loosening plate.

[0020] (5) The utility model welds and fixes the top of the support column to the three-leaf anti-loosening plate, welds and fixes the connecting bolts to the three-leaf anti-loosening plate, and welds and fixes each baffle to the three-leaf anti-loosening plate, so that the components are integrated and the reliability of the entire structure during use is effectively improved.

[0021] (6) The utility model arranges the blades of the three-leaf anti-loosening plate into two structures, and one or two blocking plates can be welded and arranged as needed, thereby improving the reliability of the entire anti-loosening structure during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a top view schematic diagram of the anti-loosening structure of the utility model;

[0024] Figure 3 It is a three-dimensional schematic diagram of the three-leaf anti-loosening piece in the utility model;

[0025] Figure 4 It is a top view schematic diagram of the three-leaf anti-loosening sheet in the utility model;

[0026] Figure 5 It is a schematic diagram of the support column in the utility model;

[0027] Figure 6 It is a schematic diagram of the baffle in the utility model;

[0028] Figure 7 It is a schematic diagram of bolt holes and inner holes formed on the bearing seat body in the utility model;

[0029] Figure 8 It is a schematic diagram of a traditional bolt anti-loosening structure;

[0030] Fig. 9 It is a top view schematic diagram of a traditional bolt anti-loosening structure;

[0031] Fig.10 It is a schematic diagram of opening connecting bolt holes on a conventional bearing seat body;

[0032] In the figure: 1. connecting bolt; 2. baffle; 3. hexagonal bolt; 4. support column; 41. upper column; 42. lower column foot; 5. three-leaf anti-loosening plate; 51. blade; 511. first blade; 512. second blade; 52. through hole; 6. bearing seat body; 61. threaded hole; 62. inner hole; 63. connecting bolt hole; 7. triangular anti-loosening plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the disclosure belongs. The "upper", "lower", "left", "right", "front", "back", "inside", "outside" and the like used in the patent application specification and claims of the present disclosure are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly. The places not described in detail in the utility model are all known technologies of technicians in the technical field.

[0034] Embodiment 1:

[0035] As attached Figure 1-10 As shown, the utility model is a novel bolt anti-loosening structure, comprising a bearing seat body 6 with connecting bolt holes 63, the bearing seat body 6 is connected with each connecting bolt hole 63 by three external hexagonal bolts 3 arranged in a triangular shape, in order to prevent the three external hexagonal bolts 3 from loosening, support columns 4 are vertically arranged between the three external hexagonal bolts 3 on the bearing seat body 6, and three support columns 4 are fixedly provided with three-leaf anti-loosening sheets 5 located between the three external hexagonal bolts 3 and whose tops do not exceed the tops of the external hexagonal bolts 3 on the tops of the three support columns 4. The three-leaf anti-loosening piece 5 does not contact the top of each external hexagonal bolt 3, and the gap is preferably maintained at 2 mm. The three-leaf anti-loosening piece 5 can be made by wire cutting and has high dimensional accuracy. Its three ends are three blades 51, and a through hole 52 is opened in the middle. A connecting bolt 1 connected to the top of the bearing seat body 6 is installed in the through hole 52. The connecting bolt 1 is preferably a hexagon socket bolt. The three blades 51 are respectively fixed with a baffle 2 that fully contacts the three external hexagonal bolts 3, and there is no gap between the baffle 2 and each external hexagonal bolt 3.

[0036] When in use, first install and pre-tighten the external hexagonal bolts 3, and then vertically set a support column 4 between the three external hexagonal bolts 3 on the top of the bearing seat body 6, and then place the three-leaf anti-loosening sheet 5 on the top of the three support columns 4 according to the position of the drawing, and then pass the connecting bolt 1 through the through hole 52 to firmly connect it to the top of the bearing seat body 6, and finally fix the baffle 2 on each blade 51 of the three-leaf anti-loosening sheet 3, and make the baffle 2 fully contact with the top of each external hexagonal bolt 3 to prevent the external hexagonal bolt 3 from loosening. Each baffle 2 shall not exceed the range of the blade 51 and shall not be placed arbitrarily, but shall be placed according to the drawing. In long-term use, if a certain external hexagonal bolt 3 breaks, because each external hexagonal bolt 3 is integrated, it can be separated from the bearing seat body 6 by itself after breaking, and the operator can easily observe and replace it, which effectively improves the service life and reliability of the transmission shaft.

[0037] Example 2

[0038] On the basis of Example 1, in order to enable the anti-loosening structure to be accurately installed and to improve its reliability, in this embodiment, inner holes 62 are respectively opened at corresponding positions of each support column 4 on the bearing seat body 6, and the inner diameter of the inner hole 62 is 7 mm. The support column 4 includes an upper column 41 and a lower column foot 42. The top of the upper column 41 is welded and fixed to the bottom of the three-leaf anti-loosening piece 5, and the lower column foot 42 is adapted to the inner hole 62 and arranged in the inner hole 62 to play a limiting role; a threaded hole 61 is opened on the bearing seat body 6 at a position corresponding to the through hole 52 of the three-leaf anti-loosening piece 5, and the bottom of the connecting bolt 1 is connected to the threaded hole 61; each of the baffles 2 is welded and fixed to the three-leaf anti-loosening piece 5; the top of the connecting bolt 1 is welded and fixed to the three-leaf anti-loosening piece 5, which can ensure that the connecting bolt 1 will not loosen after long-term use.

[0039] In this embodiment, the three-leaf anti-loosening piece 5 is produced by the limiting method of the support column 4 in combination with wire cutting. Compared with the traditional welding bolt anti-loosening method, the installation accuracy of the structure is greatly improved, and the three-leaf anti-loosening piece 5 does not contact the external hexagonal bolts 3, thereby improving the reliability of anti-loosening.

[0040] Preferably, the top of the connecting bolt 1 can appropriately exceed the top of the external hexagonal bolt 3, but the maximum does not exceed 10 mm from the top of the external hexagonal bolt 3; each of the baffles 2 does not contact the connecting bolt 1.

[0041] Example 3

[0042] On the basis of Embodiment 1 or 2, in this embodiment, the three blades 51 of the three-leaf anti-loosening piece 5 are connected in pairs through three arcs, and the blades 51 can be the first blade 511 and / or the second blade 512, and a baffle 2 is respectively arranged on both sides of the upper surface of the first blade 511, and a baffle 2 is fixedly arranged on one side of the upper surface of the second blade 512. Usually, a first blade 511 and two second blades 512 are arranged in the three-leaf anti-loosening piece 5, so that a baffle 2 can be arranged on both sides of the first blade 511 to contact with two external hexagonal bolts 3, and the other two second blades 512 can be arranged with a baffle 2 to contact with two external hexagonal bolts 3, that is, there are two baffles 2 that are in full contact with one external hexagonal bolt 3, so as to improve the reliability of the entire anti-loosening structure.

Claims

1. A novel bolt anti-loosening structure, comprising a bearing seat body (6) connected by three hexagonal bolts (3) arranged in a triangular shape, characterized in that: Support columns (4) are respectively arranged between the three external hexagonal bolts (3) on the bearing seat body (6); three leaf-shaped anti-loosening plates (5) are fixedly arranged on the tops of the three support columns (4), which are located between the three external hexagonal bolts (3) and whose tops do not exceed the tops of the external hexagonal bolts (3); the three leaf-shaped anti-loosening plates (5) do not contact the external hexagonal bolts (3); the three ends of the three leaf-shaped anti-loosening plates (51) are respectively provided with three leaves (51), the middle of which is provided with a through hole (52); a connecting bolt (1) connected to the top of the bearing seat body (6) is installed in the through hole (52); and baffles (2) that are fully in contact with the three external hexagonal bolts (3) are respectively fixedly arranged on the three leaves (51).

2. A new bolt anti-loosening structure according to claim 1, characterized in that: Inner holes (62) are respectively provided at corresponding positions of the support columns (4) on the bearing seat body (6); the support columns (4) include an upper column body (41) and a lower column foot (42); the top of the upper column body (41) is welded and fixed to the bottom of the three-leaf anti-loosening plate (5); and the lower column foot (42) is adapted to the inner hole (62) and is arranged in the inner hole (62).

3. A new bolt anti-loosening structure according to claim 2, characterized in that: The inner diameter of the inner hole (62) is 7 mm.

4. A new bolt anti-loosening structure according to claim 1, characterized in that: A threaded hole (61) is provided on the bearing seat body (6) at a position corresponding to the through hole (52) of the three-leaf anti-loosening plate (5), and the bottom of the connecting bolt (1) is connected to the threaded hole (61).

5. The novel bolt anti-loosening structure according to claim 1 is characterized in that: Each of the blocking pieces (2) is respectively welded and fixed to the three-leaf anti-loosening piece (5).

6. The novel bolt anti-loosening structure according to claim 1 is characterized in that: The top of the connecting bolt (1) is welded and fixed to the three-leaf anti-loosening sheet (5).

7. The novel bolt anti-loosening structure according to claim 1 is characterized in that: The connecting bolt (1) is a hexagon socket bolt.

8. The novel bolt anti-loosening structure according to claim 1 is characterized in that: The top of the connecting bolt (1) does not exceed the top of the external hexagonal bolt (3) by 10 mm.

9. The novel bolt anti-loosening structure according to claim 1 is characterized in that: The three leaves (51) of the three-leaf anti-loosening piece (5) are connected in pairs through three arcs, and are the first leaf (511) and / or the second leaf (512). A blocking piece (2) is respectively arranged on both sides of the upper surface of the first leaf (511), and a blocking piece (2) is fixedly arranged on one side of the upper surface of the second leaf (512).

10. The novel bolt anti-loosening structure according to claim 1 is characterized in that: Each of the baffles (2) does not contact the connecting bolt (1).

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