CN111082629B

CN111082629B - Brushless motor that single line surrounded

Info

Publication number: CN111082629B
Application number: CN202010025855.5A
Authority: CN
Inventors: 刘发明
Original assignee: Ningbo Jinrui Machinery Co ltd
Current assignee: NINGBO JINRUI MACHINERY Co.,Ltd.
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2021-02-19
Anticipated expiration: 2040-01-10
Also published as: CN111082629A; CN112737261A

Abstract

The invention discloses a single-wire-wound brushless motor, which structurally comprises a front end cover, a motor body, radiating fins and a sealing ring, wherein the radiating fins are uniformly distributed outside the motor body in an equidistant mode, the motor body is mechanically connected with the front end cover, and the sealing ring is arranged between the front end cover and the motor body in a fit mode. Through the thread groove of hexagon socket head cap bolt and front end housing, the screw hole of organism carries out threaded connection, only adopt the bolt and need not adopt the nut can realize being connected of front end housing and organism, and the front end housing adopts novel structure setting, can carry out horizontal screens to the bolt, thereby can prevent effectively that hexagon bolt from taking place not hard up or taking place the direction fine motion, can improve front end housing and organism installation fastness greatly, effectively prevent that the front end housing from breaking away from the organism, avoid front end housing and motor impaired, also can prevent that hexagon socket head cap bolt from being revolved tighter, the event can not cause the extrusion force to the front end housing, have the guard action to the front end housing, it is also comparatively convenient that the bolt is dismantled.

Description

Brushless motor that single line surrounded

Technical Field

The invention relates to the technical field of motors, in particular to a single-wire surrounding brushless motor.

Background

The brushless DC motor is composed of a motor body and a driver, is a typical electromechanical integrated product, and adopts a semiconductor switch device to realize electronic commutation, namely the electronic switch device replaces a traditional contact commutator and an electric brush.

All adopt many bolts to fix between current outer rotor brushless motor's the front end housing and the casing, brushless motor can produce vibrations in the function, vibrations can make the bolt resonance, installation direction of rotation of bolt is the same with the direction of rotation of brushless motor pivot, get off for a long time and can make the bolt take place to become flexible, thereby and cause the front end housing to break away from the casing, can lead to the motor impaired, installation direction of rotation of bolt is opposite with the direction of rotation of brushless motor pivot, get off for a long time and can make the bolt revolve tighter, thereby can lead to the fact the extrusion force to the front end housing, easily make the front end housing damaged, it is also comparatively labouring to revolve out simultaneously.

Disclosure of Invention

The main purpose of the present invention is to overcome the disadvantages of the prior art, and to provide a single-wire-wound brushless motor.

The invention is realized by adopting the following technical scheme: a single-wire-wound brushless motor structurally comprises a front end cover, a motor body, radiating fins and a sealing ring, wherein the radiating fins are uniformly distributed outside the motor body in an equidistant mode, the motor body is mechanically connected with the front end cover, and the sealing ring is arranged between the front end cover and the motor body in a fit mode;

the front end housing is including rotatory screens mechanism, translation limiting plate, spacing calorie of post, hexagon socket head cap screw, adjusting gear, apron body, rotating gear, apron body center is equipped with adjusting gear, the meshing has rotating gear on four square of adjusting gear, there is the translation limiting plate one side of rotating gear through the equal swing joint of T nature pole, translation limiting plate and apron body sliding connection, the one side that adjusting gear was kept away from to the translation limiting plate all is connected with spacing calorie of post perpendicularly, one side of spacing calorie of post all is provided with hexagon socket head cap screw, adjusting gear still cooperates the rotatory screens mechanism that has and apron body coupling.

As the optimization, the apron body is including base member, gib block, bulge loop, thread groove, the central point of base member puts and is provided with the bulge loop as an organic whole structure with it, four square positions of base member and the one end of keeping away from the bulge loop all are equipped with the thread groove, the both sides of thread groove all are provided with the gib block as an organic whole structure with the base member, the translation limiting plate is located between two mutually parallel gib blocks and the recess and the gib block sliding connection of translation limiting plate, the bulge loop is rotatable coupling with adjusting gear.

Preferably, the rotary clamping mechanism comprises a rotary disc, a linkage gear and a clamping group, the linkage gear which is of a concentric circle structure is fixed on the bottom surface of the rotary disc, the clamping groups are arranged on two oblique directions of the rotary disc, the linkage gear is meshed with the adjusting gear, and the rotary disc is movably connected with the base body.

Preferably, the clamping group comprises a first spring, a fixed cylinder, a clamping ball, a sliding sheet and an opening, the first spring is arranged in the fixed cylinder, one end of the first spring is connected with the clamping ball, the clamping ball is fixedly provided with the sliding sheet in sliding connection with the fixed cylinder, the sliding sheet is matched with the opening, the opening is formed in the fixed cylinder, and the clamping ball can be clamped with a clamping groove in the rotary disc.

As optimization, one end, far away from the inner hexagon, of the inner hexagon bolt is provided with a limiting clamping hole, and the limiting clamping hole can be clamped with the limiting clamping column.

As optimizing, spacing calorie of post is including high strength owner cylinder, expansion gap, No. two springs, spring leaf, high strength owner cylinder one end sets up for the plane end, and the other end sets up for the hemisphere structure, and the plane end is connected with the translation limiting plate is perpendicular, the expansion gap has all been seted up to the both sides of high strength owner cylinder, the expansion gap has all cooperated the spring leaf, two through No. two spring coupling between the spring leaf, No. two springs position placed in the middle is the domes setting, and the convex surface is outwards, and the concave surface is inwards.

Advantageous effects

(I) The invention rotates the inner hexagonal bolt to rotate into a threaded hole on a machine body through the arrangement of a rotary clamping mechanism, a limiting clamping column, the inner hexagonal bolt, an adjusting gear and the like, the inner hexagonal bolt is rotated into a threaded groove to connect a front end cover with the machine body, the limiting clamping hole is just opposite to the limiting clamping column, then two sliding sheets are spread, so that the sliding sheets generate pressure on a first spring, a clamping ball is separated from a clamping groove of a rotating disc, the rotating disc is rotated, a linkage gear is rotated along with the linkage gear, the adjusting gear is driven to rotate, the adjusting gear drives four rotating gears meshed with the linkage gear to synchronously rotate, a translation limiting plate moves towards the limiting clamping hole under the limiting guiding action of a guide strip until the limiting clamping column passes through the limiting clamping hole, the limiting clamping of the inner hexagonal bolt is realized, and the inner hexagonal bolt is effectively prevented from loosening, the sliding sheet is released, so that the spring is compressed to reset and provides thrust for the clamping balls, the clamping balls can penetrate through the clamping grooves formed in the rotary disc, the rotary disc is clamped, the rotary disc is effectively prevented from rotating due to external vibration force, the mounting stability of the inner hexagonal bolt is further improved, and the mounting firmness of the front end cover and the machine body can be improved;

(II) the limiting clamping column is arranged by combining the second spring, the spring piece and the like, when the limiting clamping column passes through the limiting clamping hole, certain pressure can be generated on the spring piece, so that the second spring is compressed, the high-strength main column body can conveniently pass through the limiting clamping hole to clamp, after the limiting clamping column passes through the limiting clamping hole, the second spring can generate thrust on the spring piece based on the characteristics of the second spring, the spring piece can be better contacted with the limiting clamping hole, and the clamping firmness of the limiting clamping column and the limiting clamping hole is further improved.

In summary, compared with the prior art, the invention has the beneficial effects that: through the thread groove of hexagon socket head cap bolt and front end housing, the screw hole of organism carries out threaded connection, only adopt the bolt and need not adopt the nut can realize being connected of front end housing and organism, and the front end housing adopts novel structure setting, through rotatory screens mechanism, the translation limiting plate, spacing calorie of post, hexagon socket head cap bolt, adjusting gear, the apron body, the combination setting of parts such as rotating gear, can carry out horizontal screens to the bolt, thereby can prevent effectively that hexagon bolt from taking place not hard up or taking place the orientation fine motion, can improve front end housing and organism installation fastness greatly, prevent effectively that the front end housing from breaking away from the organism, avoid front end housing and motor impaired, also can prevent that hexagon socket head cap bolt from being revolved more tightly, so can not cause the extrusion force to the front end housing, have the guard action to the front end housing, it is also comparatively convenient to dismantle the bolt.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural diagram of a single-wire-wound brushless motor according to the present invention.

Fig. 2 is a schematic structural view of the front end cap of the present invention.

Fig. 3 is a schematic cross-sectional view of the cover plate body according to the present invention.

Fig. 4 is a front structural schematic view of the front end cover of the present invention.

Fig. 5 is a schematic view of the reverse structure of the front end cap of the present invention.

Fig. 6 is a schematic structural view of the rotary detent mechanism of the present invention.

FIG. 7 is a diagram illustrating a structure of a clamping group according to the present invention.

Fig. 8 is a schematic cross-sectional view of the bolt of the present invention.

Fig. 9 is a schematic cross-sectional view of a first state of the limit clip of the present invention.

Fig. 10 is a schematic cross-sectional view of a first state of the limit clip of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

the device comprises a front end cover-100, a machine body-200, a radiating fin-300, a sealing ring-400, a rotary clamping mechanism-101, a translation limiting plate-102, a limiting clamping column-103, an inner hexagon bolt-104, an adjusting gear-105, a cover plate body-106, a rotary gear-107, a base body-106 a, a guide strip-106 b, a convex ring-106 c, a thread groove-106 d, a rotary disc-101 a, a linkage gear-101 b, a clamping group-101 c, a first spring-101 d, a fixed cylinder-101 e, a clamping bead-101 f, a sliding sheet-101 g, an opening-101 h, a limiting clamping hole-104 a, a high-strength main cylinder-103 a, a movable opening-103 b, a second spring-103 c and a spring sheet-103 d.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-8, the present invention provides a single-wire-wound brushless motor, comprising: the structure of the engine comprises a front end cover 100, an engine body 200, radiating fins 300 and a sealing ring 400, wherein the radiating fins 300 arranged in an equidistant manner are uniformly distributed outside the engine body 200, the engine body 200 is mechanically connected with the front end cover 100, the sealing ring 400 is arranged between the front end cover 100 and the engine body 200 in a fit manner, and the sealing ring 400 is arranged to improve the installation tightness of the engine body 200 and the front end cover 100;

the front end cover 100 comprises a rotary clamping mechanism 101, a translation limiting plate 102, limiting clamping columns 103, inner hexagon bolts 104, an adjusting gear 105, a cover plate body 106 and a rotating gear 107, wherein the adjusting gear 105 is arranged at the center of the cover plate body 106, the rotating gear 107 is meshed with four square positions of the adjusting gear 105, one surface of the rotating gear 107 is movably connected with the translation limiting plate 102 through a T-shaped rod, the translation limiting plate 102 is in sliding connection with the cover plate body 106, one surface, far away from the adjusting gear 105, of the translation limiting plate 102 is vertically connected with the limiting clamping columns 103, one side of each limiting clamping column 103 is provided with the inner hexagon bolt 104, and the adjusting gear 105 is matched with the rotary clamping mechanism 101 connected with the cover plate body 106;

the combination of the adjusting gear 105 and the rotating gear 107 is arranged to improve the adjusting efficiency of the clamping position;

the limiting clamping columns 103 are arranged to transversely clamp and fix the inner hexagon bolts 104, so that the inner hexagon bolts 104 are effectively prevented from loosening.

The cover plate body 106 comprises a base 106a, guide bars 106b, a convex ring 106c and a thread groove 106d, the convex ring 106c integrated with the base 106a is arranged at the central position of the base 106a, the thread grooves 106d are arranged at four square positions of the base 106a and at one end far away from the convex ring 106c, the guide bars 106b integrated with the base 106a are arranged at two sides of the thread groove 106d, the translation limiting plate 102 is arranged between the two parallel guide bars 106b, the groove of the translation limiting plate 102 is in sliding connection with the guide bars 106b, and the convex ring 106c is in rotatable connection with the adjusting gear 105;

the guide strips 106b are arranged to limit and guide the translation of the translation limiting plate 102, so that the straight movement of the limiting clamping columns 103 is facilitated, and the matching precision of the limiting clamping columns 103 and the limiting clamping holes 104a is improved;

the convex ring 106c is arranged to facilitate the installation of the adjusting gear 105, so that the adjusting gear 105 cannot be influenced by the rotating shaft of the machine body 200 to rotate along with the rotating shaft;

the thread groove 106d is provided to connect the cover plate body 106 and the hexagon socket head cap screw 104, so that the cover plate body 106 and the machine body 200 can be connected without using a nut.

The rotary clamping mechanism 101 comprises a rotary disc 101a, a linkage gear 101b and a clamping group 101c, the linkage gear 101b which is in a concentric circle structure is fixed on the bottom surface of the rotary disc 101a, the clamping group 101c is arranged on each of two oblique directions of the rotary disc 101a, the linkage gear 101b is meshed with the adjusting gear 105, and the rotary disc 101a is movably connected with the base 106 a;

the combination of the turntable 101a and the linkage gear 101b is arranged to make the limit clipping column 103 separate from the limit clipping hole 104a, or to facilitate the clipping of the limit clipping hole 104a and the limit clipping column 103,

the clamping group 101c comprises a first spring 101d, a fixed cylinder 101e, a clamping ball 101f, a sliding sheet 101g and an opening 101h, the first spring 101d is arranged in the fixed cylinder 101e, one end of the first spring 101d is connected with the clamping ball 101f, the clamping ball 101f is fixedly provided with the sliding sheet 101g which is in sliding connection with the fixed cylinder 101e, the sliding sheet 101g is matched with the opening 101h, the opening 101h is formed in the fixed cylinder 101e, and the clamping ball 101f can be clamped with a clamping groove in the rotary disc 101 a;

the clamping group 101c is arranged for clamping and fixing the rotating disc 101a, so that the rotating disc 101a is prevented from loosening.

Spacing calorie of hole 104a has been seted up to hexagon socket head cap screw 104 one end of keeping away from its hexagon socket head cap, spacing calorie of hole 104a can block with spacing calorie of post 103 looks mutually to can carry out the screens fixed to hexagon socket head cap screw 104, avoid hexagon socket head cap screw 104 to take place to become flexible.

Example 2

Referring to fig. 1-3 and 8-10, the present invention provides a technical solution of a single-wire-wound brushless motor: the structure of the engine comprises a front end cover 100, an engine body 200, radiating fins 300 and a sealing ring 400, wherein the radiating fins 300 arranged in an equidistant manner are uniformly distributed outside the engine body 200, the engine body 200 is mechanically connected with the front end cover 100, the sealing ring 400 is arranged between the front end cover 100 and the engine body 200 in a fit manner, and the sealing ring 400 is arranged to improve the installation tightness of the engine body 200 and the front end cover 100;

referring to fig. 2, the front end cover 100 includes a rotation blocking mechanism 101, a translation limiting plate 102, a limiting blocking column 103, an inner hexagon bolt 104, an adjusting gear 105, a cover plate body 106, and a rotating gear 107, wherein the center of the cover plate body 106 is provided with the adjusting gear 105, the rotating gear 107 is engaged with four squares of the adjusting gear 105, one side of the rotating gear 107 is movably connected with the translation limiting plate 102 through a T-shaped rod, the translation limiting plate 102 is slidably connected with the cover plate body 106, one side of the translation limiting plate 102 away from the adjusting gear 105 is vertically connected with the limiting blocking column 103, one side of the limiting blocking column 103 is provided with the inner hexagon bolt 104, and the adjusting gear 105 is further matched with the rotation blocking mechanism 101 connected with the cover plate body 106;

Referring to fig. 3, the cover plate body 106 includes a base 106a, a guide bar 106b, a convex ring 106c, and a threaded groove 106d, the convex ring 106c integrated with the base 106a is disposed at a central position of the base 106a, the threaded grooves 106d are disposed at four square positions of the base 106a and at one end away from the convex ring 106c, the guide bar 106b integrated with the base 106a is disposed at two sides of the threaded groove 106d, the translation limiting plate 102 is disposed between the two parallel guide bars 106b, a groove of the translation limiting plate 102 is slidably connected with the guide bar 106b, and the convex ring 106c is rotatably connected with the adjusting gear 105;

Referring to fig. 8, a limiting locking hole 104a is formed in an end of the hexagon socket head cap screw 104 away from the hexagon socket head cap, and the limiting locking hole 104a can be engaged with the limiting locking post 103, so that the hexagon socket head cap screw 104 can be locked and fixed, and the hexagon socket head cap screw 104 is prevented from being loosened.

Referring to fig. 9-10, the limiting clip column 103 includes a high-strength main column 103a, a movable port 103b, a second spring 103c, and spring pieces 103d, one end of the high-strength main column 103a is a flat end, the other end of the high-strength main column is a hemisphere structure, the flat end is vertically connected to the translation limiting plate 102, the movable port 103b is disposed on both sides of the high-strength main column 103a, the movable ports 103b are both matched with the spring pieces 103d, the two spring pieces 103d are connected by the second spring 103c, the middle part of the second spring 103c is arranged in an arch structure, the convex surface faces outward, and the concave surface faces inward;

no. two spring 103c and spring leaf 103 d's combination setting, all have elasticity based on both to be convenient for spacing calorie of post 103 to pass spacing calorie of hole 104a, after the block, spring leaf 103d can contact with spacing calorie of hole 104a better, further improves spacing calorie of post 103 and spacing calorie of hole 104 a's block fastness.

The working principle of the invention is as follows: the hexagon socket head cap bolt 104 is rotated into a threaded hole on the machine body 200 and then is rotated into a threaded groove 106d, so that the front end cover 100 is connected with the machine body 200, at the moment, the limit clamping hole 104a is opposite to the limit clamping column 103, then the two sliding sheets 101g are spread, the sliding sheets 101g generate pressure on the first spring 101d, the clamping balls 101f are separated from the clamping grooves of the rotating disc 101a, the rotating disc 101a is rotated, the linkage gear 101b is rotated along with the rotation, the adjusting gear 105 is driven to rotate, the adjusting gear 105 drives the four rotating gears 107 meshed with the linkage gear to synchronously rotate, the translation limiting plate 102 moves towards the limit clamping hole 104a under the limit guiding action of the guide strip 106b until the limit clamping column 103 passes through the limit clamping hole 104a, the limit clamping of the hexagon socket head cap bolt 104 is realized, and the looseness of the hexagon socket head cap bolt 104 is effectively prevented, therefore, the sliding piece 101g is released, the first spring 101d is compressed to reset and provides thrust for the clamping bead 101f, the clamping bead 101f can penetrate through the clamping groove formed by the rotary disc 101a, the rotary disc 101a is clamped, the rotary disc 101a is effectively prevented from rotating under the action of external vibration force, the mounting stability of the hexagon socket head cap bolt 104 is further improved, and the mounting firmness of the front end cover 100 and the machine body 200 can be improved;

when the limiting clamping column 103 passes through the limiting clamping hole 104a, certain pressure can be generated on the spring plate 103d, the second spring 103c is compressed, the high-strength main column body 103a can conveniently pass through the limiting clamping hole 104a to clamp, after the spring plate 103d passes through the limiting clamping hole, thrust can be generated on the spring plate 103d due to the characteristics of the second spring 103c, the spring plate 103d can be better contacted with the limiting clamping hole 104a, and the clamping firmness of the limiting clamping column 103 and the limiting clamping hole 104a is further improved.

In summary, the technical progress obtained by the invention compared with the prior art is as follows: through the thread groove of hexagon socket head cap bolt and front end housing, the screw hole of organism carries out threaded connection, only adopt the bolt and need not adopt the nut can realize being connected of front end housing and organism, and the front end housing adopts novel structure setting, through rotatory screens mechanism, the translation limiting plate, spacing calorie of post, hexagon socket head cap bolt, adjusting gear, the apron body, the combination setting of parts such as rotating gear, can carry out horizontal screens to the bolt, thereby can prevent effectively that hexagon bolt from taking place not hard up or taking place the orientation fine motion, can improve front end housing and organism installation fastness greatly, prevent effectively that the front end housing from breaking away from the organism, avoid front end housing and motor impaired, also can prevent that hexagon socket head cap bolt from being revolved more tightly, so can not cause the extrusion force to the front end housing, have the guard action to the front end housing, it is also comparatively convenient to dismantle the bolt.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. A single-wire-wound brushless motor structurally comprises a front end cover (100), a motor body (200), radiating fins (300) and a sealing ring (400), wherein the radiating fins (300) are uniformly distributed outside the motor body (200), the motor body (200) is connected with the front end cover (100), the sealing ring (400) is arranged between the front end cover (100) and the motor body (200), the single-wire-wound brushless motor is characterized in that the front end cover (100) comprises a rotary clamping mechanism (101), a translation limiting plate (102), a limiting clamping column (103), an inner hexagonal bolt (104), an adjusting gear (105), a cover plate body (106) and a rotating gear (107), the adjusting gear (105) matched with the rotating gear (107) is installed on the cover plate body (106), the rotating gear (107) is provided with a translation limiting plate (102) connected with the cover plate body (106), and the translation limiting plate (102) is connected with the limiting clamping column (, one side of each limiting clamping column (103) is provided with an inner hexagon bolt (104), and the adjusting gear (105) is also matched with a rotary clamping mechanism (101) connected with the cover plate body (106); the cover plate body (106) comprises a base body (106a), guide strips (106b), convex rings (106c) and thread grooves (106d), the convex rings (106c) are arranged at the center of the base body (106a), the thread grooves (106d) are arranged at four square positions, the guide strips (106b) are arranged on two sides of each thread groove (106d), the translation limiting plate (102) is connected with the guide strips (106b) in a sliding mode, and the convex rings (106c) are connected with the adjusting gear (105); the rotary clamping mechanism (101) comprises a rotary disc (101a), a linkage gear (101b) and a clamping group (101c), the linkage gear (101b) matched with the adjusting gear (105) is fixed on the rotary disc (101a), the rotary disc (101a) is provided with 2 clamping groups (101c), and the rotary disc (101a) is movably connected with a base body (106 a); the clamping group (101c) comprises a first spring (101d), a fixed cylinder (101e), a clamping ball (101f), a sliding sheet (101g) and an opening (101h), the first spring (101d) is arranged in the fixed cylinder (101e), one end of the first spring (101d) is connected with the clamping ball (101f), the clamping ball (101f) is connected with the sliding sheet (101g) matched with the opening (101h), the opening (101h) is formed in the fixed cylinder (101e), and the clamping ball (101f) can be clamped with a clamping groove in the rotary disc (101 a); the inner hexagon bolt (104) is provided with a limiting clamping hole (104a) clamped with the limiting clamping column (103); the limiting clamp column (103) comprises a high-strength main column body (103a), movable ports (103b), a second spring (103c) and spring pieces (103d), one end of the high-strength main column body (103a) is arranged as a plane end, the other end of the high-strength main column body is arranged as a hemispheroid structure, the plane end is vertically connected with the translation limiting plate (102), 2 movable ports (103b) are formed in the high-strength main column body (103a), each movable port (103b) is matched with a spring piece (103d), and the two spring pieces (103d) are connected through the second spring (103 c);

the inner hexagon bolt (104) is rotated into a threaded hole on the machine body (200) and then is rotated into a threaded groove (106d), so that the front end cover (100) is connected with the machine body (200), at the moment, a limiting clamping hole (104a) is just opposite to a limiting clamping column (103), then two sliding sheets (101g) are spread, the sliding sheets (101g) generate pressure on a first spring (101d), a clamping ball (101f) is separated from a clamping groove of a rotating disc (101a), the rotating disc (101a) is rotated, a linkage gear (101b) rotates along with the linkage gear, an adjusting gear (105) is driven to rotate, the adjusting gear (105) drives four rotating gears (107) which are meshed with the adjusting gear to synchronously rotate, a translation limiting plate (102) moves towards the limiting clamping hole (104a) under the limiting guiding action of a guide bar (106b) until the limiting clamping column (103) passes through the limiting clamping hole (104a), thereby realize spacing screens to hexagon socket head cap bolt (104), it is not hard up to prevent effectively that hexagon socket head cap bolt (104) from taking place, thereby release gleitbretter (101g), make spring (101d) because compressed will reset and provide thrust to calorie pearl (101f), make calorie pearl (101f) can pass the draw-in groove that carousel (101a) are, thereby play the purpose of screens to carousel (101a), effectively prevent that carousel (101a) from receiving external vibration power and taking place to rotate, further improve the steadiness of hexagon socket head cap bolt (104) installation, thereby can improve the fastness of front end housing (100) and organism (200) installation.