CN217669094U

CN217669094U - Hydraulic torque wrench

Info

Publication number: CN217669094U
Application number: CN202221297416.0U
Authority: CN
Inventors: 武祥强
Original assignee: Hangzhou Elliott Industrial Technology Co ltd
Current assignee: Hangzhou Elliott Industrial Technology Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-10-28
Anticipated expiration: 2032-05-26

Abstract

The utility model discloses a hydraulic torque wrench, which comprises a housin, install electric hydraulic cylinder and wrench assembly in the casing, connect through movable assembly between electric hydraulic cylinder and the wrench assembly, wrench assembly is including rotating the drive shaft of installing on the casing, through electric hydraulic cylinder drive shaft rotates, the free end fixedly connected with fixed block of drive shaft, the fluted disc is installed to the fixed block internal rotation, and has seted up the arc and lead to the groove on the fluted disc, the fixed block runs through the push rod all around. The utility model discloses in, rotate through the motor drive worm, drive fluted disc clockwise rotation leads to the groove at the arc under the effect for the slider drives the outside arc splint removal that promotes of push rod, makes in the draw-in groove on the hexagon socket head cap sleeve including the arc splint butt, reaches the purpose that can fix the drive shaft with not unidimensional hexagon socket head cap sleeve, thereby realizes the dismouting of not unidimensional bolt, application scope grow.

Description

Hydraulic torque wrench

Technical Field

The utility model relates to a hydraulic pressure torque wrench technical field especially relates to hydraulic pressure torque wrench.

Background

The hydraulic torque wrench is a professional bolt tightening tool for mounting and dismounting bolts, and uses hydraulic pressure as power to provide large torque output.

However, firstly, the tip of foretell hydraulic torque wrench's drive shaft generally adapts to a bolt, and the use limitation is great, and secondly, if the drive shaft tip takes place to damage, when unable promptly with bolted connection, need the complete machine to dismantle the change drive shaft, it is comparatively troublesome, consequently, lack a hydraulic torque wrench who adapts to the dismouting of multiple bolt size.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: in order to solve the above problems, a hydraulic torque wrench is proposed.

In order to realize the purpose, the utility model adopts the following technical scheme:

hydraulic pressure torque wrench, which comprises a housin, install electric hydraulic cylinder and wrench assembly in the casing, connect through the movable assembly between electric hydraulic cylinder and the wrench assembly, the wrench assembly is including rotating the drive shaft of installing on the casing, through electric hydraulic cylinder drive shaft rotates, the free end fixedly connected with fixed block of drive shaft, the fluted disc is installed to the fixed block internal rotation, and has seted up the arc on the fluted disc and lead to the groove, the fixed block runs through all around there is the push rod, the one end of push rod closes soon through the screw thread and is connected with the slider, and push rod other end fixedly connected with arc splint, and the logical groove sliding connection of slider and arc.

As a further description of the above technical solution:

the wrench assembly further comprises a ratchet wheel rotatably mounted on the shell and a driving wheel sleeved on the driving shaft, a plurality of yielding grooves are formed in the outer side of the driving wheel, a plurality of pawls matched with the ratchet wheel are rotatably connected in the yielding grooves, and elastic pieces in contact with the pawls are fixedly connected in the yielding grooves.

As a further description of the above technical solution:

a motor is fixedly installed in the fixed block, and an output shaft of the motor is connected with a worm which is meshed with the fluted disc in a transmission manner.

As a further description of the above technical solution:

and a rubber pad is bonded on the outer side of the arc-shaped clamping plate.

As a further description of the above technical solution:

the fluted disc is rotatably connected with the fixed block through a rotating shaft.

As a further description of the above technical solution:

the movable assembly comprises a connecting block fixedly connected to the ratchet wheel, and the free end of the electric hydraulic cylinder is fixedly connected with a U-shaped connecting rod in sliding connection with the connecting block.

As a further description of the above technical solution:

the connecting block is provided with a sliding groove, and the opening end of the U-shaped connecting rod is fixedly connected with a sliding rod penetrating through the sliding groove.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, rotate through the motor drive worm, drive fluted disc clockwise rotation under the effect that the arc leads to the groove for the slider drives the outside arc splint removal that promotes of push rod, makes in the draw-in groove on the hexagonal socket including the arc splint butt, reaches the purpose that can fix the drive shaft with the hexagonal socket in not unidimensional, thereby realizes the dismouting of the bolt of not unidimensional, application scope grow.

2. The utility model discloses in, if the driving shaft tip takes place to damage, the slider is unscrewed, change push rod, arc splint can, easy operation need not the complete machine and dismantles.

Drawings

Fig. 1 is a schematic view illustrating an internal structure of a fixing block of a hydraulic torque wrench according to an embodiment of the present invention;

fig. 2 shows a schematic diagram of an internal structure of a hydraulic torque wrench according to an embodiment of the present invention;

fig. 3 shows a schematic front view of a hydraulic torque wrench provided according to an embodiment of the present invention;

fig. 4 shows a connection schematic diagram of a connecting block and a sliding rod of a hydraulic torque wrench according to an embodiment of the present invention.

Illustration of the drawings:

1. a housing; 2. an electric hydraulic cylinder; 31. a U-shaped connecting rod; 32. a slide bar; 33. connecting blocks; 331. a chute; 41. a ratchet wheel; 42. a drive wheel; 421. a yielding groove; 43. a pawl; 44. a drive shaft; 45. a spring plate; 51. a worm; 52. a motor; 53. an arc-shaped splint; 54. a push rod; 55. a fluted disc; 551. an arc-shaped through groove; 56. a slider; 57. a rotating shaft; 58. a fixed block; 6. and (7) a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the hydraulic torque wrench comprises a shell 1, wherein an electric hydraulic cylinder 2 and a wrench assembly are installed in the shell 1, the electric hydraulic cylinder 2 is connected with the wrench assembly through a movable assembly, the wrench assembly comprises a driving shaft 44 rotatably installed on the shell 1, the driving shaft 44 is driven to rotate through the electric hydraulic cylinder 2, a fixed block 58 is fixedly connected with the free end of the driving shaft 44, a fluted disc 55 is rotatably installed in the fixed block 58, the fluted disc 55 is rotatably connected with the fixed block 58 through a rotating shaft 57, an arc-shaped through groove 551 is formed in the fluted disc 55, a push rod 54 penetrates through the periphery of the fixed block 58, one end of the push rod 54 is connected with a slide block 56 in a screwing manner through threads, the other end of the push rod 54 is fixedly connected with an arc-shaped clamp plate 53, the slide block 56 is slidably connected with the arc-shaped through groove 551, a motor 52 is fixedly installed in the fixed block 58, and an output shaft of the motor 52 is in transmission connection with a worm 551 meshed with the fluted disc 55;

firstly, the inner hexagonal sleeve is sleeved outside the arc-shaped clamping plate 53, the bottom of the inner hexagonal sleeve is contacted with the push rod 54, then the worm 51 is driven to rotate by the motor 52, the fluted disc 55 is driven to rotate clockwise according to the meshing transmission principle of the latch, under the action of the arc-shaped through groove 551, the slide block 56 drives the push rod 54 to push the arc-shaped clamping plate 53 to move outwards, make in the draw-in groove on the hexagon socket head cap sleeve including the arc splint 53 butt, reach the purpose that can fix drive shaft 44 with the hexagon socket head cap sleeve of unidimensional not to realize the dismouting of the bolt of unidimensional not, application scope grow, secondly, if drive shaft 44 tip takes place to damage, screw down slider 56, change push rod 54, arc splint 53 can, easy operation need not the complete machine and dismantles.

Specifically, as shown in fig. 1, a rubber pad 6 is bonded to the outer side of the arc-shaped clamp plate 53, so that the friction force between the arc-shaped clamp plate 53 and the hexagonal socket is increased, and the connection stability of the hexagonal socket on the driving shaft 44 is improved.

Specifically, as shown in fig. 2, the wrench assembly further includes a ratchet 41 rotatably mounted on the housing 1, and a driving wheel 42 sleeved on the driving shaft 44, a plurality of abdicating grooves 421 are formed in the outer side of the driving wheel 42, a plurality of pawls 43 matched with the ratchet 41 are rotatably connected in the abdicating grooves 421, the free end of the electric hydraulic cylinder 2 drives the ratchet 41 to rotate, the pawls 43 on the driving wheel 42 are engaged with the pawl grooves on the ratchet 41, the driving wheel 42 drives the driving shaft 44 to rotate, an elastic sheet 45 in contact with the pawls 43 is fixedly connected in the abdicating grooves 421, by arranging the elastic sheet 45, it can be ensured that the piston driving shaft 44 can only rotate in one direction, and the driving shaft 44 is driven to rotate when the free end of the electric hydraulic cylinder 2 is retracted.

Specifically, as shown in fig. 2 and 4, the movable assembly includes a connecting block 33 fixedly connected to the ratchet 41, a U-shaped connecting rod 31 slidably connected to the connecting block 33 is fixedly connected to a free end of the electric hydraulic cylinder 2, a sliding slot 331 is formed in the connecting block 33, and a sliding rod 32 penetrating through the sliding slot 331 is fixedly connected to an open end of the U-shaped connecting rod 31.

The working principle is as follows: during the use, firstly, cup joint the interior hexagonal sleeve in the arc splint 53 outside, and the bottom and the push rod 54 contact of interior hexagonal sleeve, then, through motor 52 drive worm 51 rotates, according to the meshing transmission principle of latch, drive fluted disc 55 clockwise rotates, under the effect of arc logical groove 551, make slider 56 drive push rod 54 outwards promote arc splint 53 to remove, make arc splint 53 butt in the draw-in groove on the interior hexagonal sleeve, reach the purpose that can fix drive shaft 44 with the interior hexagonal sleeve of different sizes, thereby realize the dismouting of the bolt of different sizes, application scope grow, then, drive ratchet 41 through the free end of electric hydraulic cylinder 2 and rotate, pawl 43 on the drive wheel 42 meshes with the pawl groove on the ratchet 41, drive wheel 42 drives drive shaft 44 and rotates, thereby realize the dismouting of the bolt of different sizes, application scope grow, secondly, if drive shaft 44 tip takes place to damage, screw down slider 56, change push rod 54, arc splint 53 can, and is easy to operate, need not to dismantle the complete machine.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The hydraulic torque wrench comprises a shell (1) and is characterized in that an electric hydraulic cylinder (2) and a wrench assembly are installed in the shell (1), the electric hydraulic cylinder (2) and the wrench assembly are connected through a movable assembly, the wrench assembly comprises a driving shaft (44) which is rotatably installed on the shell (1), the driving shaft (44) is driven to rotate through the electric hydraulic cylinder (2), a fixing block (58) is fixedly connected to the free end of the driving shaft (44), a fluted disc (55) is rotatably installed in the fixing block (58), an arc-shaped through groove (551) is formed in the fluted disc (55), push rods (54) penetrate through the periphery of the fixing block (58), one end of each push rod (54) is connected with a sliding block (56) in a screwing mode through threads, the other end of each push rod (54) is fixedly connected with an arc-shaped clamping plate (53), and the sliding blocks (56) are slidably connected with the arc-shaped through grooves (551).

2. The hydraulic torque wrench according to claim 1, wherein the wrench assembly further includes a ratchet wheel (41) rotatably mounted on the housing (1) and a driving wheel (42) sleeved on the driving shaft (44), a plurality of yielding grooves (421) are formed in the outer side of the driving wheel (42), a plurality of pawls (43) adapted to the ratchet wheel (41) are rotatably connected to the yielding grooves (421), and spring plates (45) contacting the pawls (43) are fixedly connected to the yielding grooves (421).

3. The hydraulic torque wrench as claimed in claim 1, characterized in that a motor (52) is fixedly mounted in the fixing block (58), and an output shaft of the motor (52) is in transmission connection with a worm (51) in meshing connection with the toothed disc (55).

4. The hydraulic torque wrench as claimed in claim 1, characterised in that a rubber pad (6) is glued to the outside of the arc-shaped clamping plate (53).

5. The hydraulic torque wrench as claimed in claim 1, wherein the toothed disc (55) is rotatably connected to the fixed block (58) by a shaft (57).

6. Hydraulic torque wrench according to claim 2, characterised in that the movable assembly comprises a connecting block (33) fixedly connected to the ratchet wheel (41), the free end of the electric hydraulic cylinder (2) being fixedly connected to a U-shaped connecting rod (31) slidably connected to the connecting block (33).

7. The hydraulic torque wrench as claimed in claim 6, wherein the connecting block (33) is provided with a sliding slot (331), and the open end of the U-shaped connecting rod (31) is fixedly connected with a sliding rod (32) passing through the sliding slot (331).