CN217703269U

CN217703269U - Loosening and tightening device

Info

Publication number: CN217703269U
Application number: CN202220564481.9U
Authority: CN
Inventors: 高腾
Original assignee: Guangzhou Wivor Industry Equipment Co ltd
Current assignee: Guangzhou Wivor Industry Equipment Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-11-01
Anticipated expiration: 2032-03-15

Abstract

The utility model provides a tensioner, include: a housing; an input shaft, said input shaft being in driving connection with an external power means; a plurality of output shafts fixed to the housing; each output shaft is in transmission connection with the input shaft; the end part of the output shaft is connected with a bolt sleeve matched with an external bolt, so that the output shaft drives the bolt sleeve to rotate. The utility model discloses the ware is connected through an input shaft and a plurality of output shaft transmission to the elasticity ware, drives the epaxial bolt sleeve rotation of output, realizes the synchronous fastening of many bolts, has improved efficiency.

Description

Loosening and tightening device

Technical Field

The utility model particularly relates to a loosening and tightening device.

Background

The bolt is very common part, and to small-size bolt among the daily life, the manual spanner that uses just can fasten. In the field of mechanical industry, there are more scenes that need to carry out bolt fastening, for example, bolt fastening on the tire wheel hub, the fixed of driving-disc, if the manual fastening of manual work, if bolt fastening process is carried out in these places, it is hard to waste time, inefficiency. For large equipment with larger bolt size, the bolt is fastened, the operation cannot be basically carried out manually, and special equipment is required.

Accordingly, there is a need for a tensioner capable of simultaneously fastening a plurality of bolts simultaneously and greatly improving the fastening efficiency of the bolts.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a ware is tightened to pine solves among the prior art many bolt-up in-process inefficiency not enough.

In order to achieve the above object, the utility model adopts the following technical scheme:

a tensioner, comprising:

a housing;

an input shaft, said input shaft being in driving connection with an external power unit;

a plurality of output shafts fixed to the housing; each output shaft is in transmission connection with the input shaft; the end part of the output shaft is connected with a bolt sleeve matched with an external bolt, so that the output shaft drives the bolt sleeve to rotate.

The utility model discloses in, the central axis of different output shafts is located same circle.

The utility model discloses in, every the output shaft passes through the gear engagement transmission with the input shaft respectively and is connected.

Further, the number of the output shafts is determined according to the number of external bolts in actual use.

Further, the number of the output shafts is five or more. Therefore, not only can the labor be saved and the efficiency be improved, but also the cost can be controlled. When the number of the output shafts is five to eight, the gear discs of the output shafts can be arranged on the same layer, and when the number of the output shafts is more than eight, the gear discs of the output shafts can be arranged in a staggered mode in a layered mode, and a plurality of layers are arranged, so that the overall space of the tightener can be reduced.

The utility model discloses an in some embodiments, spacing hole has been seted up to the tip of output shaft, bolt sleeve passes spacing hole and output shaft through the round pin axle for bolt sleeve can make a round trip spacing slip on the output shaft. Through setting up like this, need not the bolt sleeve on a plurality of output shafts and embolias different bolts simultaneously, can be with the location adaptation of conveniently realizing a plurality of bolt sleeves and bolt.

Furthermore, the limiting hole is a long waist hole.

Further, the bolt sleeve is a dodecagonal bolt sleeve.

The utility model discloses can do following improvement, the output shaft cover is equipped with compression spring, compression spring one end is fixed on the output shaft, and the bolt sleeve is supported on the other end top. Set up compression spring on every output shaft, drive bolt sleeve at the output shaft and rotate the in-process, give bolt sleeve axial force through compression spring for bolt sleeve slides more steadily on the output shaft, also easier and bolt location adaptation.

The utility model discloses following improvement, every can carry out the output shaft is through two bearing frame fixed connection on the casing. Through setting up like this, can be so that the output shaft is unsettled, the output shaft rotates more steadily, can avoid simultaneously with the friction of casing, reduce the loss.

Further, the casing includes top cap and main part, and two bearing frames are located respectively on casing top cap and the main part.

The utility model discloses in, the input shaft passes through the bearing frame to be fixed on the casing.

The utility model discloses following beneficial effect has:

(1) The utility model discloses the ware is connected through an input shaft and a plurality of output shaft transmission to the elasticity ware, drives the epaxial bolt sleeve rotation of output, realizes the synchronous fastening of many bolts, has improved efficiency.

(2) The utility model discloses the sleeve cover of bolt of the take-up device is established on the output shaft, and the spring is established through setting up spacing hole and cover to the output shaft for bolt sleeve removes more steadily, and positioning bolt is more convenient simultaneously.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of the tensioner of the present invention;

FIG. 2 is a front view of the tensioner of the present invention;

fig. 3 is a rear view of the tensioner of the present invention;

fig. 4 is a left side view of the tensioner of the present invention;

fig. 5 is a right side view of the tensioner of the present invention;

fig. 6 is a top view of the tensioner of the present invention;

fig. 7 is a bottom view of the tensioner of the present invention;

FIG. 8 isbase:Sub>A view A-A of FIG. 2;

fig. 9 and 10 are schematic views of the connection between the input shaft and the output shaft of the present invention;

FIG. 11 is a schematic view of the connection of the output shaft to the bolt sleeve;

FIG. 12 is an exploded view of FIG. 11;

the drawings are numbered as follows: 1. a housing; 2. an input shaft; 3. an output shaft; 4. a bolt bushing; 5. a compression spring; 6. a bearing seat; 7. a limiting hole; 8. and (7) a pin shaft.

Detailed Description

The tensioner, as shown in fig. 1-12, comprises a housing 1, an input shaft 2, an output shaft 3, a bolt sleeve 4 and a compression spring 5.

The housing 1 includes a top cover and a main body, which are fixedly connected. The input shaft 2 is fixed to the housing 1 by a bearing block 6. Every output shaft 3 is through two bearing frame 6 fixed connection on casing 1, and two bearing frame 6 are located respectively on casing 1 top cap and the main part. Each output shaft 3 is respectively connected with the input shaft 2 through gear engagement transmission, and the central axes of different output shafts 3 are positioned on the same circle. The input shaft 2 is in transmission connection with an external power device. The number of the output shafts 3 is determined according to the number of external bolts in actual use, and when the number of the output shafts 3 is large, the gear discs of the output shafts 3 can be arranged in a staggered mode in a layered mode, and a plurality of layers are arranged, so that the overall space of the tightener can be reduced. In this embodiment, the number of the output shafts 3 is eight, and the gear discs of the eight output shafts 3 are arranged in two layers at intervals in a staggered manner. The end of the output shaft 3 is provided with a limiting hole 7, the bolt sleeve 4 is sleeved outside the output shaft 3 and penetrates through the limiting hole 7 through a pin shaft 8 to be fixedly connected with the output shaft 3, so that the bolt sleeve 4 can slide on the output shaft 3 in a back-and-forth limiting manner. In this embodiment, the limiting hole 7 is a long waist hole, the bolt sleeve 4 is a dodecagonal bolt sleeve 4, and the dodecagonal bolt sleeve 4 is more convenient to position and fasten with an external hexagon bolt. Each output shaft 3 is sleeved with a compression spring 5, one end of each compression spring 5 is fixed on the output shaft 3, and the other end of each compression spring abuts against the bolt sleeve 4. In the process that the output shaft 3 drives the bolt sleeve 4 to rotate, the axial force is applied to the bolt sleeve 4 through the compression spring 5, so that the bolt sleeve 4 slides on the output shaft 3 more stably and is easier to position and adapt to the bolt. The utility model discloses the synchronous fastening of many bolts can be realized to the ware of loosening and tightening, has improved fastening bolt's efficiency greatly.

The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.

Claims

1. A tensioner, comprising:

a housing (1);

an input shaft (2), wherein the input shaft (2) is in transmission connection with an external power device;

a plurality of output shafts (3), the output shafts (3) being fixed to the housing (1); each output shaft (3) is in transmission connection with the input shaft (2) respectively; the end part of the output shaft (3) is connected with a bolt sleeve (4) matched with an external bolt, so that the output shaft (3) drives the bolt sleeve (4) to rotate.

2. The tensioner according to claim 1, characterized in that the central axes of the different output shafts (3) lie on the same circle.

3. A tensioner according to claim 2, characterised in that each of said output shafts (3) is in geared transmission connection with the input shaft (2).

4. A tensioner according to claim 3, characterised in that the number of output shafts (3) is determined according to the number of external bolts in actual use.

5. A tensioner according to any one of claims 1-4, characterized in that the end of the output shaft (3) is provided with a limiting hole (7), and the bolt sleeve (4) is connected with the output shaft (3) through the limiting hole (7) by a pin (8) so that the bolt sleeve (4) can slide on the output shaft (3) in a limiting way.

6. A tensioner according to claim 5, characterised in that the stop hole (7) is a long waist hole.

7. A tensioner according to claim 6, characterised in that the bolt sleeve (4) is a dodecagonal bolt sleeve.

8. A tensioner according to claim 5, characterized in that the output shaft (3) is fitted with a compression spring (5), said compression spring (5) being fixed to the output shaft (3) at one end and abutting against the bolt sleeve (4) at the other end.

9. A tensioner according to claim 8, characterized in that each output shaft (3) is fixedly connected to the housing (1) by means of two bearing blocks (6).

10. A tensioner according to claim 9, characterised in that the housing (1) comprises a top cover and a main body, the two bearing blocks (6) being provided on the top cover and the main body, respectively, of the housing (1).