CN209483787U - A kind of interface bolt variable-diameter structure and starter - Google Patents

Abstract

The utility model discloses a kind of interface bolt variable-diameter structure and starter, interface bolt variable-diameter structure includes bottom bolts and adjusting bolt；Bottom bolts include head and the first threaded joints；Adjusting bolt includes the portion and the second threaded joints of being fastenedly connected, and the portion of being fastenedly connected is in nut type, and the portion of being fastenedly connected has internal screw thread compatible with first threaded joints, and the diameter of the second threaded joints is different from the diameter of the first threaded joints.Starter includes multiple Interface Terminals, and multiple Interface Terminals completely or partially use above-mentioned interface bolt variable-diameter structure.The utility model is used to meet client to the requirement of interface terminal diameter by adjusting bolt, without changing the structure of starter, i.e. without the new mold because of Interface Terminal diameter issue, save mold type and die sinking expense, the design efforts would for reducing modification exploitation, substantially reduces the development cycle of such amelioration product.

Description

A kind of interface bolt variable-diameter structure and starter

Technical field

The utility model relates to a kind of interface bolt variable-diameter structure and using the starter of the interface bolt variable-diameter structure.

Background technique

Starter is the core component of engine start, and working principle is by converting machinery for the electric energy of battery Can, the moment of resistance of engine is overcome, by the engine start of stationary state.

Starter on the market designs the bolt being integrated referring to Fig. 1 to Fig. 5, the Interface Terminal of starter, spiral shell at present Bolt diameter be it is fixed immutable, be not able to satisfy the demand of client.

Wherein: the current design of starter cathode Interface Terminal 2 (industry is referred to as 31 terminals), referring to fig. 2: brush bottom plate 4, brush cover 1 processes a through-hole according to the diameter of fitted bolt, and starter cathode Interface Terminal 2 is mounted above, and Brush bottom plate 4 is fixed on brush cover 1 by the nut outside brush cover 1.If starter cathode Interface Terminal 2 is straight Diameter changes, and will lead to the change of brush bottom plate 4, brush cover 1.Meanwhile about 2 diameter one of starter cathode Interface Terminal It causes, if desired larger-diameter bolt, the head of bolt also can be larger, can undoubtedly occupy 1 inside larger space of brush cover.

The current design of motor power input interface terminal 3 (industry is referred to as 30 terminals), referring to 3: electromagnetic switch 10 Supporting cover realizes the reserved of cooperation through-hole by mold according to the diameter of fitted bolt.The change of fitted bolt diameter needs new Mold could be realized out.The quantity of components is increased in this way and increases the risk of mixing, while can also improve mold expense With, design cost.

Equally, electromagnetic switch control interface terminal 6 (industry is referred to as 50 ends), (the industry letter of relay control interface terminal 7 The referred to as end 50C) structure and above-mentioned motor power input interface terminal 3 design unanimously.Details are not described herein again.

Utility model content

It is intended to overcome above-mentioned the deficiencies in the prior art, the first problem that the utility model solves is to provide one Kind interface bolt variable-diameter structure, the structure without changing matching body can meet the needs of client is to the interface diameter of bolt, make With convenient and versatile.

As the same technical concept, another technical problem that the utility model is solved is to provide a kind of using upper State the starter of interface bolt variable-diameter structure.

To solve above-mentioned first problem, the utility model provides a kind of interface bolt variable-diameter structure, the interface spiral shell Bolt variable-diameter structure includes bottom bolts and adjusting bolt；

The bottom bolts include head and the first threaded joints；

The adjusting bolt includes the portion and the second threaded joints of being fastenedly connected, and the portion of being fastenedly connected is in nut type, institute The portion of being fastenedly connected is stated with internal screw thread compatible with first threaded joints, the diameter of second threaded joints is not It is same as the diameter of first threaded joints.

Preferably, the portion of being fastenedly connected includes nut body and cylindrical boss, one end of the nut body and institute The connection of the second threaded joints is stated, the other end of the nut body is connect with the cylindrical boss, the cylindrical boss Diameter be less than the nut body diameter.

Preferably, the adjusting bolt is integrated.

Preferably, the size of the nut body is adapted with the size of second threaded joints.

Preferably, the portion of being fastenedly connected is equipped with inner hole, and the inner hole includes screw thread hole section and unthreaded hole section, the threaded hole Section is adapted with first threaded joints.

Preferably, the height of the inner hole is less than the height for being fastenedly connected portion.

To solve above-mentioned Second Problem, the utility model provides a kind of starter, and the starter includes multiple connects Mouth terminal, multiple Interface Terminals all use or part uses above-mentioned interface bolt variable-diameter structure.

Preferably, the end of the cylindrical boss is closely connect with corresponding lug plate, and the cylindrical boss is outer An avoiding space is formed between circumferential surface and the end face of the nut body, the avoiding space is for avoiding the lug plate and leading The engaging portion of line.

After above-mentioned technical proposal, the beneficial effects of the utility model are:

The utility model interface bolt variable-diameter structure mainly includes and body (starter corresponding end cap or Supporting cover) matching Bottom bolts adjusted for changing the adjusting bolt of the additional nut function of bottom bolts the first threaded joints diameter Bolt, which has, is fastenedly connected portion and the second threaded joints in nut type, and the portion of being fastenedly connected is convenient for the installation of adapting universal nut Tool, and there is the internal screw thread for being adapted to the first threaded joints；Second threaded joints diameter is different from the first screw thread The diameter of interconnecting piece realizes the purpose of variable diameter.

Starter has multiple Interface Terminals, such as relay control interface terminal (50C terminal), electromagnetic switch control interface end The Interface Terminals such as sub (50 terminal), starter cathode Interface Terminal (31 terminal) and motor power input interface terminal (30 terminal) It is all or part of to use above-mentioned interface bolt variable-diameter structure；Its, for the bottom bolts with corresponding end cap or Supporting cover cooperation Diameter be it is fixed, client is met by the adjusting bolt of external different-diameter to the requirement of interface terminal diameter, If M8 is switched to M10, M8 is switched to M12, and M10 is switched to M12.Body-starter structure is matched without changing, that is, is not necessarily to The new mold because of Interface Terminal diameter issue saves mold type and die sinking expense, reduces the design work of modification exploitation It measures, substantially reduces the development cycle of such amelioration product, realize the modularized design of product.

The utility model is described in detail below in conjunction with the drawings and specific embodiments, but not as to the utility model Restriction.

Detailed description of the invention

Fig. 1 is the starter outline drawing of existing design；

Fig. 2 is the partial sectional view of existing starter cathode Interface Terminal；

Fig. 3 is the partial sectional view of existing motor power input interface terminal；

Fig. 4 is the top view of existing electromagnetic switch control interface terminal

Fig. 5 is the top view of existing relay control interface terminal relay control interface terminal

Fig. 6 is the partial sectional view of the utility model starter cathode Interface Terminal；

Fig. 7 is the partial sectional view of the utility model motor power input interface terminal；

Fig. 8 is the schematic diagram of the utility model interface bolt variable-diameter structure；

Fig. 9 a is the blank drawing for adjusting bolt；

Fig. 9 b is that Fig. 9 a processes the structural schematic diagram after inner hole；

Fig. 9 c is the structural schematic diagram after Fig. 9 b machining internal thread；

Fig. 9 d is the structural schematic diagram that the utility model adjusts bolt.

In figure: 1- brush cover, 2- starter cathode Interface Terminal, 3- motor power input interface terminal, 4- brush bottom Plate, 5- nut, 6- electromagnetic switch control interface terminal, 7- relay control interface terminal, 8- bottom bolts, the head 81-, 82- First threaded joints, 9- adjust bolt, and 91- is fastenedly connected portion, 911- nut body, 912- cylindrical boss, 913- screw thread Hole section, 914- unthreaded hole section, 915- inner hole, the second threaded joints of 92-, 10- electromagnetic switch Supporting cover, 11- lug plate, 12- are kept away Allow space.

Specific embodiment

Technical solutions of the utility model are described in detail in the following with reference to the drawings and specific embodiments, so as to more into one Step understands the purpose of this utility model, scheme and effect, but is not intended as the appended claims for the utility model protection scope Limitation.

Starter include: Driving terminal assembly, isolator assembly, cover board, field frame assembly, rotor assembly, brush bottom plate 4, Brush cover 1, electromagnetic switch assembly, contact point kit etc., the present embodiment is in addition to 6 (terminal of electromagnetic switch control interface terminal 50), relay control interface terminal 7 (terminal 50C), motor power input interface terminal 3 (terminal 30), starter cathode interface Outside the Interface Terminals relevant designs such as terminal 2 (terminal 31), other parts are identical as existing starter technology, and details are not described herein again.

It is applied to starter being described in detail as embodiment using interface bolt variable-diameter structure.

Starter includes multiple Interface Terminals, wherein more crucially electromagnetic switch control interface terminal 6 (terminal 50), Relay control interface terminal 7 (terminal 50C), motor power input interface terminal 3 (terminal 30), starter cathode Interface Terminal 2 (terminals 31).Interface Terminal completely or partially uses interface bolt variable-diameter structure.

As Fig. 6 to Fig. 8 jointly shown in, in this example interface bolt variable-diameter structure include bottom bolts 8 and adjust bolt 9, Bolt 9 is adjusted to be integrated；Bottom bolts 8 include head 81 and the first threaded joints 82；Adjusting bolt 9 includes being fastenedly connected Portion 91 and the second threaded joints 92 are fastenedly connected portion 91 in nut type, and as adjusting bolt 9 attached nut function；Fastening Interconnecting piece 91 has internal screw thread compatible with the first threaded joints 82, and the diameter of the second threaded joints 92 is different from first The diameter of threaded joints 82.

Being fastenedly connected portion 91 includes nut body 911 (being equivalent to hexagonal flange nut) and cylindrical boss 912, nut sheet One end of body 911 is connect with the second threaded joints 92, and the other end of nut body 911 is connect with cylindrical boss 912, cylinder The diameter of shape boss 912 is less than the diameter of nut body 911.

When applied on starter, the end of cylindrical boss 912 is closely connect with corresponding lug plate 11, and circular cylindrical projection An avoiding space 12 is formed between the outer peripheral surface of platform 912 and the end face of nut body 911, avoiding space 12 is for avoiding lug plate 11 with the engaging portion of conducting wire；Avoiding space 12 allows adjusting bolt 9 to stand good in the case where increasing lug plate 11, increases Suitability.

In the present embodiment, the size of nut body 911 is adapted with the size of the second threaded joints 92.

Part of interface terminal is illustrated below:

Starter cathode Interface Terminal 2 (terminal 31) is located at bottom bolts 8 and brush inside brush cover 1 by head 81 9 two parts of adjusting bolt of 1 external add-in nut function of end cap form, and the two is connected through a screw thread, and adjust bolt 9 with stubborn Tight function.Under the premise of bottom bolts 8 inside brush cover 1 are not changed, i.e. 81 size of head of bottom bolts 8 does not have There is change, 1 inside larger space of brush cover will not be occupied, re-works brush bottom plate 4, brush end without tool is re-molded Lid 1；The adjustment on Interface Terminal diameter dimension can be carried out by the adjusting bolt 9 of additional nut function, to meet client couple The requirement of Interface Terminal diameter.

Motor power input interface terminal 3 (terminal 30) is located at the bottom spiral shell inside electromagnetic switch Supporting cover 10 by head 81 Bolt 8 and 9 two parts of adjusting bolt of 10 external add-in nut function of electromagnetic switch Supporting cover form, and the two is connected through a screw thread, Adjusting bolt 9 has the function of to tighten.Under the premise of bottom bolts 8 inside electromagnetic switch Supporting cover 10 are not changed, i.e., 81 size of head of bottom bolts 8 does not change, and re-works electromagnetic switch Supporting cover 10 without tool is re-molded, dependence is attached Add the adjusting bolt 9 of nut function that can carry out the adjustment on Interface Terminal diameter dimension, it is straight to Interface Terminal to meet client The requirement of diameter.

Electromagnetic switch control interface terminal 6 (terminal 50), relay control interface terminal 7 (terminal 50C), structure, design Unanimously with above-mentioned starter cathode Interface Terminal 2 (terminal 31), motor power input interface terminal 3 (terminal 30), herein no longer It repeats.

Wherein: can be according to adjusting 9 second threaded joints 92 (screw rod) of bolt with the matched nut 5 of bolt 9 is adjusted Diameter carries out selection appropriate；The diameter for adjusting 9 second threaded joints 92 of bolt, can also be according to the use need of Interface Terminal It asks and changes；Each Interface Terminal can use interface bolt variable-diameter structure according to use demand.

As shown in Fig. 9 a to 9d, the manufacture craft of the adjusting bolt 9 of nut function is added:

First earnestly at blank；Then it is machined out inner hole 915 from 91 one end of the portion that is fastenedly connected, i.e., is formed with bit bore interior Hole 915；Then tapping (machining internal thread), having one section before screw tap is guiding role, i.e., last inner hole 915 includes screw thread Hole section 914 and unthreaded hole section 915 (915 length of inner hole is greater than screw thread hole section 914).Screw thread hole section 914 and the first threaded joints 82 External screw thread be adapted, and the height of this inner hole 915 be guarantee bolt intensity, need to be less than the height in the portion of being fastenedly connected 91, I.e. inner hole 915 cannot get into the second threaded joints 92；Finally process the external screw thread of the second threaded joints 92.

The adjustable starter advantage of the utility model Interface Terminal diameter is as follows compared with the starter of existing design:

Using the utility model interface bolt variable-diameter structure, without changing the structure of starter, i.e., one set of die is only needed, The Interface Terminal that matching uses different size can be realized.Mold versatility is improved, is reduced because of Interface Terminal diameter issue Caused new mold saves mold type and die sinking expense, reduces the design efforts would of modification exploitation, substantially reduce The development cycle of such amelioration product realizes the modularized design of product.

Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence In the case of, those skilled in the art work as can make various corresponding changes and modifications, but these according to the utility model Corresponding changes and modifications all should belong to the protection scope of the utility model the attached claims.

Claims (8)

1. a kind of interface bolt variable-diameter structure, which is characterized in that the interface bolt variable-diameter structure includes bottom bolts and adjusting Bolt；

The bottom bolts include head and the first threaded joints；

The adjusting bolt includes the portion and the second threaded joints of being fastenedly connected, and the portion of being fastenedly connected is in nut type, described tight The socket part that is connected has internal screw thread compatible with first threaded joints, and the diameter of second threaded joints is different from The diameter of first threaded joints.

2. interface bolt variable-diameter structure according to claim 1, which is characterized in that the portion of being fastenedly connected includes nut sheet Body and cylindrical boss, one end of the nut body are connect with second threaded joints, the nut body it is another End is connect with the cylindrical boss, and the diameter of the cylindrical boss is less than the diameter of the nut body.

3. interface bolt variable-diameter structure according to claim 2, which is characterized in that the adjusting bolt is integrated.

4. interface bolt variable-diameter structure according to claim 2, which is characterized in that the size of the nut body with it is described The size of second threaded joints is adapted.

5. interface bolt variable-diameter structure according to claim 1, which is characterized in that the portion of being fastenedly connected is equipped with inner hole, The inner hole includes screw thread hole section and unthreaded hole section, and the screw thread hole section is adapted with first threaded joints.

6. interface bolt variable-diameter structure according to claim 5, which is characterized in that the height of the inner hole is less than described tight The height for the socket part that is connected.

7. a kind of starter, the starter includes multiple Interface Terminals, which is characterized in that multiple Interface Terminals are all adopted With or part use interface bolt variable-diameter structure as claimed in any one of claims 1 to 6.

8. starter according to claim 7, which is characterized in that the end of the cylindrical boss and corresponding lug plate are tight Close connection, and an avoiding space is formed between the outer peripheral surface of the cylindrical boss and the end face of the nut body, it is described to keep away Allow space for avoiding the engaging portion of the lug plate and conducting wire.