CN208984658U

CN208984658U - A kind of rotation-speed measuring device

Info

Publication number: CN208984658U
Application number: CN201821506357.7U
Authority: CN
Inventors: 王颜琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-14
Filing date: 2018-09-14
Publication date: 2019-06-14
Anticipated expiration: 2028-09-14

Abstract

The utility model discloses a kind of rotation-speed measuring devices, the hall effect sensor that turntable and one including a rotational installation are fixedly mounted, the turntable includes circle ring disk and several magnetization abaculus, and several magnetization abaculus are uniformly distributed along the circumferencial direction of the circle ring disk.The processing is simple and reduces generation originally for the utility model.

Description

A kind of rotation-speed measuring device

Technical field

The utility model relates to gearbox technical fields, and in particular to a kind of rotation-speed measuring device.

Background technique

Rotation-speed measuring device is the device for the tachometric survey of engine, gearbox, currently used tachometric survey dress It sets and is made of turntable and speed probe, turntable is fluted disc, the micro- magnetoelectric sensor of speed probe or hall sensor group At common fluted disc generallys use stainless steel material or iron nickel by powder is made, and due to Gearmaking Technology complexity, will cause production It is at high cost.

Utility model content

In view of this, the present invention provides a kind of rotation-speed measuring devices that the processing is simple, at low cost.

To achieve the above object, the utility model provides the following technical solutions:

A kind of rotation-speed measuring device, the turntable including a rotational installation, the turntable includes being made of non-magnetizable material Circle ring disk and several magnetization abaculus, and several magnetization abaculus be uniformly distributed along the circumferencial direction of the circle ring disk.

Further, the circumferential surface of the circle ring disk is equipped with the caulking groove for the both ends of the surface that several run through the circle ring disk, The magnetization abaculus is fixed in corresponding caulking groove.

Further, the caulking groove is major arc slot or dovetail groove.

Further, the quantity of the caulking groove is 8 or 10 or 12.

Further, the magnetization abaculus is iron block or nickel block or cobalt block.

Further, the circle ring disk is made of plastics or bakelite or aluminum alloy materials.

Further, the magnetization abaculus is by inlaying or bonding way is fixed in corresponding caulking groove.

It can be seen from the above technical scheme that the utility model has the advantages that:

1, it is cut into due to circle ring disk using plastic tube or aluminium-alloy pipe, and carries out caulking groove processing, not only processing technology Simply, production cost is also reduced；

2, since circle ring disk is equipped with several caulking grooves, magnetization abaculus is fixed in corresponding caulking groove, can be according to making It is easy to use with the magnetization abaculus of demand setting different number；

3, it when caulking groove is major arc slot, can once complete to process using drill bit, it is easy to process, when caulking groove is dovetail groove, keep away Exempt from magnetization abaculus to rotate during the installation process, facilitates positioning；

4, since magnetization abaculus is iron block or nickel block or cobalt block, it can satisfy the use demand that tests the speed.

Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model Point.Below with reference to figure, the utility model is described in further detail.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.In the accompanying drawings:

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the another structural schematic diagram of the turntable of the utility model.

Fig. 3 is a structural schematic diagram of the circle ring disk of the utility model.

Fig. 4 is the another structural schematic diagram of the circle ring disk of the utility model.

In the figure, it is marked as turntable 1, circle ring disk 11, caulking groove 111, magnetization abaculus 12, hall effect sensor 2.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Referring to figs. 1 to Fig. 4, a kind of rotation-speed measuring device as shown in Figure 1, turntable 1 and one including a rotational installation are solid The hall effect sensor 2 of Dingan County's dress, the turntable 1 include using circle ring disk 11 made of non-magnetizable material and several magnetization Abaculus 12, and several magnetization abaculus 12 are uniformly distributed along the circumferencial direction of the circle ring disk 11,1 rotation process of turntable In, the magnetization abaculus 12 can make to change by the density of line of magnetic force of hall effect sensor 2, so as to cause Hall voltage Variation, and then realize revolving speed measurement.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the circumferential surface of the circle ring disk 11 is equipped with several through the circle ring disk The caulking groove 111 of 11 both ends of the surface, and the caulking groove 111 is major arc slot or dovetail groove, the magnetization abaculus 12 is by inlaying or gluing The mode of connecing is fixed in corresponding caulking groove 111, can be individually replaced, be made after the 12 long-time use of magnetization abaculus With conveniently, wherein the quantity of the caulking groove 111 is 8 or 10 or 12, and the magnetization that can set different number according to demand is embedding Block 12 is met different tachometric survey precision, can directly be processed, be made using drill bit when the caulking groove 111 is major arc slot Simple process, the caulking groove 111 avoid the magnetization abaculus 12 from rotating during the installation process, facilitate positioning when being dovetail groove.

The circle ring disk 11 is made of plastics or bakelite or aluminum alloy materials, reduces production cost, the circle ring disk 11 use Shooting Technique when being made of plastic material, pressing process is used when the circle ring disk 11 is made of bakelite material, It is made of that aluminium-alloy pipe cutting technique can be used that the circle ring disk 11 is made of aluminum alloy materials, keeps processing technology simple.

The magnetization abaculus 12 is iron block or nickel block or cobalt block, it is ensured that the turntable 1 can satisfy the demand of tachometric survey.

Using above-mentioned 1 structure of turntable, effect is generated to hall effect sensor 2 merely with the magnetization abaculus 12, is avoided The circle ring disk 11 generates interference to hall effect sensor 2, and measurement accuracy is high.

The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model, Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims

1. a kind of rotation-speed measuring device, which is characterized in that the turntable (1) including a rotational installation, the turntable (1) include using Circle ring disk made of non-magnetizable material (11) and several magnetization abaculus (12), and several magnetization abaculus (12) are along the annulus The circumferencial direction of disk (11) is uniformly distributed.

2. rotation-speed measuring device according to claim 1, which is characterized in that the circumferential surface of the circle ring disk (11) is equipped with , through the caulking groove (111) of the both ends of the surface of the circle ring disk (11), the magnetization abaculus (12) is fixed at corresponding for several In caulking groove (111).

3. rotation-speed measuring device according to claim 2, which is characterized in that the caulking groove (111) is major arc slot or trapezoidal Slot.

4. rotation-speed measuring device according to claim 2, which is characterized in that the quantity of the caulking groove (111) is 8 or 10 It is a or 12.

5. rotation-speed measuring device according to claim 1, which is characterized in that the magnetization abaculus (12) is iron block or nickel block Or cobalt block.

6. rotation-speed measuring device according to claim 1, which is characterized in that the circle ring disk (11) uses plastics or bakelite Or aluminum alloy materials are made.

7. rotation-speed measuring device according to claim 2, which is characterized in that the magnetization abaculus (12) is by inlaying or gluing The mode of connecing is fixed in corresponding caulking groove (111).