CN210307568U

CN210307568U - Ratchet rack for torque wrench

Info

Publication number: CN210307568U
Application number: CN201921201731.7U
Authority: CN
Inventors: 蔡鸣泉; 董政; 吴登龙; 孙胜强; 颜维贞; 丁鑫磊; 朱洪涛
Original assignee: Weihai Weida Precision Casting Co ltd
Current assignee: Weihai Weida Precision Casting Co ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-04-14
Anticipated expiration: 2029-07-29

Abstract

The utility model provides a ratchet rack for torque wrench, which solves the technical problems of complex ratchet shell structure and large processing difficulty of the prior torque wrench, and comprises an output part, a steering piece groove part and a connecting part, wherein the output part is connected with the connecting part through the steering piece groove part, the output part comprises two parallel half arcs, a swing body square groove is arranged between the two half arcs, a knob fixing hole is arranged in the upper half arc, and an output shaft hole is arranged in the lower half arc; the steering piece groove part is connected to the semi-circular arc of the output part through two steering arms, the steering piece grooves are symmetrically arranged in the two steering arms, and the other ends of the two steering arms are provided with positioning holes; connect the position and establish to hollow cylinder structure, connect the position center and establish to the hole, hole and locating hole set up with one heart, the utility model discloses but wide application in solar energy trade's digital display torque wrench's field.

Description

Ratchet rack for torque wrench

Technical Field

The utility model belongs to the technical field of electric tool and specifically relates to a ratchet frame for torque wrench is related to.

Background

The electric torque wrench is mainly applied to industries of steel structure installation, automobile tire assembly and the like, and is specially used for installing high-strength bolts for fastening steel structures, automobile tire assembly and the like, wherein the high-strength bolts are used for connecting steel structure contacts and assembling and fastening tires and usually appear in a bolt group mode; the ratchet casing is the core part of the electric torque wrench, and plays important roles of fixing a motor, transmitting torque and the like.

At present, the ratchet frame in the torque wrench field is mainly an integral structure, one end is ratchet and output shaft support, and the other end hole is fixed rotary motor, and the ratchet frame is an integral structure, contains ratchet output shaft, steering part and rotary motor, and it has the structure complicacy, the processing degree of difficulty is big, length is longer, drill tapping on the face of cylinder, the position precision can not guarantee the scheduling problem, and manufacturing cost is high.

Disclosure of Invention

The utility model discloses be exactly to the complicated and great technical problem of the processing degree of difficulty of ratchet shell structure to current torque wrench provides a simple structure and easy processing assembly ratchet frame for torque wrench.

Therefore, the utility model comprises an output part, a steering part groove part and a connecting part, wherein the output part is connected with the connecting part through the steering part groove part, the output part comprises two parallel semi-circular arcs, a swing body square groove is arranged between the two semi-circular arcs, a knob fixing hole is arranged in the upper semi-circular arc, and an output shaft hole is arranged in the lower semi-circular arc; the steering piece groove part is connected to the semi-circular arc of the output part through two steering arms, the steering piece grooves are symmetrically arranged in the two steering arms, and the other ends of the two steering arms are provided with positioning holes; the connecting part is of a hollow cylindrical structure, the center of the connecting part is provided with an inner hole, and the inner hole and the positioning hole are concentrically arranged.

Preferably, the steering member groove is of a U-shaped structure, the two steering arms are two vertical arms of the U-shaped structure respectively, and the positioning hole is formed in the groove bottom of the U-shaped structure.

Preferably, the steering groove is formed in an arc shape.

Preferably, the output shaft hole and the knob fixing hole are concentrically arranged, and the diameter of the output shaft hole is larger than that of the knob fixing hole.

Preferably, the output shaft hole is provided with an output shaft positioning groove.

Preferably, the steering member groove portion is connected to the connecting portion by a stepped end surface.

Preferably, the end part of the inner hole of the connecting part is provided with a bearing positioning groove.

Preferably, two pin holes are symmetrically arranged on the excircle of the connecting part, and the two pin holes are perpendicular to the axis of the inner hole.

The utility model provides a ratchet frame that new-type torque wrench used has the structural feature of processing simply, low cost, and the front end is ratchet oscillating body and motor power shaft support, and the centre sets up the steering gear groove and places the steering gear, and the rear end hole is motor power output shaft dead eye, rear end excircle accessible bushing digital display screen, operation convenient to use.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a bottom view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is a schematic structural diagram of the present invention.

The symbols in the drawings illustrate that:

1. an output portion; 2. a steering member slot location; 3. a connecting site; 4. a swing body square groove; 5. an upper semicircular arc; 6. a lower semicircular arc; 7. a knob fixing hole; 8. an output shaft hole; 9. an output shaft locating slot; 10. a steering arm; 11. a steering member slot; 12. positioning holes; 13. a step end face; 14. an outer circle; 15. an inner bore; 16. a pin hole; 17. bearing locating slot.

Detailed Description

The following describes in detail embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and 2, the utility model discloses an output position 1, turn to a groove position 2 and connection position 3, output position 1 is connected with connection position 3 through turning to a groove position 2, as shown in fig. 3 and 4, output position 1 includes two half arcs of parallel arrangement, establish to swing body square groove 4 in the middle of two half arcs, the ratchet swing body of placing torque wrench in swing body square groove 4, set up knob fixed orifices 7 in the upper portion half arc 5, set up output shaft hole 8 in the lower part half arc 6, output shaft hole 8 sets up with knob fixed orifices 7 is concentric, output shaft hole 8's diameter is greater than the diameter of knob fixed orifices 7, output shaft hole 8 department is equipped with output shaft constant head tank 9, a motor power shaft for fixing torque wrench.

The steering piece groove part 2 is of a U-shaped structure, two vertical arms of the U-shaped structure are respectively provided with two steering arms 10, the steering piece groove part 2 is respectively connected to two semicircular arcs of the output part 1 through the two steering arms 10, the steering piece grooves 11 are symmetrically arranged in the two steering arms 10 and used for placing steering pieces of a torque wrench, the steering piece grooves 11 are arc-shaped, and a positioning hole 12 is arranged in the groove bottom of the U-shaped structure.

The connecting part 3 is a hollow cylindrical structure, the steering component groove part 2 is connected with an excircle 14 of the cylindrical structure in the connecting part 3 through two layers of step end surfaces 13, the center of the connecting part 3 is an inner hole 15, the end part of the inner hole 15 of the connecting part 3 is provided with a bearing positioning groove 17, the inner hole 15 is used as a bearing hole, is used for bearing a motor power shaft, the motor power shaft is matched with a bearing, an inner hole 15 is arranged concentrically with a positioning hole 12 in a steering piece groove part 2, one end of the motor power shaft is connected to the positioning hole 12 in the steering piece groove part, two pin holes 16 are symmetrically arranged on an excircle 14 of a connecting part 3, the pin holes 16 penetrate through the excircle 14, the two pin holes 16 are arranged perpendicular to the axis of the inner hole 15, a sleeve (not shown in the figure) is fixedly connected with the pin and the pin hole 16, one end of the sleeve is closely positioned with the step end face 13, and the other end of the sleeve is used for installing a digital display torsion sensor.

When the ratchet wheel swinging device is used, the power shaft of the motor is fixed to the output shaft hole 8, the electric motor is started, the power shaft of the motor rotates through the bearing of the inner hole 15 at the rear end of the ratchet wheel frame to transmit power, the steering piece rotates in the steering piece groove 11, the rotating power is converted into left-right swinging power, and the ratchet wheel swinging body is driven to swing in the swinging body square groove 4; when the ratchet wheel swinging body swings once, the motor power shaft rotates for an angle, the front end of the motor power shaft is of an inner hexagonal structure, the motor is continuously started until the hexagonal bolt is screwed, the set value on the digital display torque sensor is reached, if the reverse rotation is required, the steering knob can be adjusted, and the motor power shaft can reversely rotate.

However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. A ratchet rack for a torque wrench is characterized by comprising an output part, a steering piece groove part and a connecting part, wherein the output part is connected with the connecting part through the steering piece groove part, the output part comprises two semicircular arcs arranged in parallel, a swinging body square groove is arranged between the two semicircular arcs, a knob fixing hole is arranged in the upper semicircular arc, and an output shaft hole is arranged in the lower semicircular arc; the steering piece groove part is connected to the semi-circular arc of the output part through two steering arms, steering piece grooves are symmetrically arranged in the two steering arms, and positioning holes are formed in the other ends of the two steering arms; the connecting part is of a hollow cylindrical structure, the center of the connecting part is provided with an inner hole, and the inner hole and the positioning hole are concentrically arranged.

2. The ratchet rack for a torque wrench as claimed in claim 1, wherein the steering member slot portion is formed in a U-shaped configuration, the two steering arms are two vertical arms of the U-shaped configuration, respectively, and the positioning hole is formed in a slot bottom of the U-shaped configuration.

3. The ratchet rack for a torque wrench according to claim 1, wherein the steering member groove is formed in a circular arc shape.

4. The ratchet rack for a torque wrench as claimed in claim 1, wherein the output shaft hole is concentrically disposed with the knob fixing hole, and the diameter of the output shaft hole is larger than the diameter of the knob fixing hole.

5. The ratchet rack for a torque wrench as claimed in claim 1, wherein the output shaft aperture has an output shaft positioning slot.

6. The ratchet rack for a torque wrench according to claim 1, wherein the steering member groove portion is connected to the connecting portion by a stepped end surface.

7. The ratchet rack for a torque wrench as claimed in claim 1, wherein a bearing positioning groove is formed at an end portion of the inner hole of the connecting portion.

8. The ratchet rack for a torque wrench according to claim 1, wherein two pin holes are symmetrically formed on an outer circumference of the connecting portion, and the two pin holes are arranged perpendicular to an axis of the inner hole.