CN212601564U

CN212601564U - Hydraulic gear wrench

Info

Publication number: CN212601564U
Application number: CN202021035987.8U
Authority: CN
Inventors: 刘牧洲
Original assignee: Xinjiang Petroleum Administration Co ltd; China National Petroleum Corp
Current assignee: Xinjiang Petroleum Administration Co ltd; China National Petroleum Corp
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-02-26
Anticipated expiration: 2030-06-08

Abstract

The utility model relates to a hydraulic wrench technical field specifically is a hydraulic gear spanner, including casing, sleeve gear, gear train and hydraulic motor, be equipped with sleeve gear in the casing, sleeve gear includes the wheel body and locates the teeth of a cogwheel of wheel body outer fringe, and coaxial the seting up in the card hole of wheel body in the wheel body, the position that corresponds the card hole is equipped with the opening on the casing, is equipped with hydraulic motor on the casing, and hydraulic motor's output shaft and sleeve gear pass through at least two-stage gear train transmission and are connected. The utility model has the advantages of reasonable structure and simple operation, overcome the intermittent low-speed work of current hydraulic wrench, need just can take off the shortcoming of nut or bolt through multiple operation, very big improvement the dismouting operating efficiency, shorten dismouting operating time.

Description

Hydraulic gear wrench

Technical Field

The utility model relates to a hydraulic wrench technical field specifically is a hydraulic gear spanner.

Background

When the medium-large bolt-nut connecting piece is disassembled and assembled, especially when the bolt-nut connecting piece which is rusted seriously is disassembled and assembled, a large torque is needed, the manual operation is extremely difficult, and a common wrench and a force applying rod are needed to be used for manual operation or a hydraulic wrench with a larger torque is used. The existing hydraulic wrench has the structural principle that a piston pushes a ratchet wheel to rotate, and an inner hexagon of the ratchet wheel clamps an outer hexagon of a nut to rotate the nut. Because the piston can only do reciprocating motion, the propelling stroke is very small each time, the nut can only rotate about 20 degrees, and the next propelling can be carried out after the piston retracts and resets. Constantly operating button presses repeatedly and loosens about 18 and just can make the nut rotatory a week, and the operation number of times is many, operating time is long, and the nut is screwed up before screwing up or still need the manual operation to twist the nut after the pine is torn open and carry out pretension or later stage and continue the pine to make whole dismouting activity duration long, inefficiency, influence the job schedule.

Disclosure of Invention

The utility model provides a hydraulic gear spanner has overcome above-mentioned prior art not enough, can not rotate nut or bolt in succession when it can effectively solve current hydraulic wrench dismouting operation, must carry out repetitious operation, causes the long, the inefficiency problem of dismouting activity duration.

The technical scheme of the utility model is realized through following measure:

the utility model provides a hydraulic gear spanner, includes casing, sleeve gear, gear train and hydraulic motor, is equipped with sleeve gear in the casing, and sleeve gear includes the wheel body and locates the teeth of a cogwheel of wheel body outer fringe, and coaxial the seting up in the wheel body has been seted up and has been link up in the card hole of wheel body, corresponds the position in card hole and is equipped with the opening on the casing, is equipped with hydraulic motor on the casing, and hydraulic motor's output shaft and sleeve gear pass through at least two-stage gear train transmission and.

The following are further optimization or/and improvement of the technical scheme of the utility model:

the gear set can be two-stage, and comprises a driving gear shaft, a driven gear and a driven gear shaft, wherein the driving gear shaft is fixedly connected with an output shaft of the hydraulic motor, the driven gear is fixedly sleeved on the driven gear shaft, the driven gear is meshed with the driving gear shaft, and the sleeve gear is meshed with the driven gear shaft.

The shell can be composed of an upper shell and a lower shell which are fixedly installed together, the central axis of a driving gear shaft is vertically arranged, a first upper positioning hole is arranged on the upper shell corresponding to the upper end position of the driving gear shaft, the upper end of the driving gear shaft is coaxially and fixedly connected with a first upper positioning shaft, the first upper positioning shaft is arranged in the first upper positioning hole in a penetrating way, the outer diameter of the first upper positioning shaft is equal to or slightly smaller than the inner diameter of the first upper positioning hole, the shaft diameter of the driving gear shaft is larger than the inner diameter of the first upper positioning hole, the upper end surface of the driving gear shaft is close to or contacted with the inner wall of the upper shell around the first upper positioning hole, a first lower positioning hole is arranged on the lower shell corresponding to the lower end position of the driving gear shaft, the lower end of the driving gear shaft is coaxially and fixedly connected with a first lower positioning shaft, the shaft, the outer diameter of the first lower positioning shaft is equal to or slightly smaller than the inner diameter of the first lower positioning hole, the shaft diameter of the driving gear shaft is larger than the inner diameter of the first lower positioning hole, and the lower end face of the driving gear shaft is close to or in contact with the inner wall of the lower shell around the first lower positioning hole; the central axis of the driven gear shaft is vertically arranged, a second upper positioning hole is arranged on the upper shell corresponding to the upper end position of the driven gear shaft, a second upper positioning shaft is coaxially and fixedly connected with the upper end of the driven gear shaft, the second upper positioning shaft is arranged in the second upper positioning hole in a penetrating way, the outer diameter of the second upper positioning shaft is equal to or slightly smaller than the inner diameter of the second upper positioning hole, the shaft diameter of the driven gear shaft is larger than the inner diameter of the second upper positioning hole, the upper end surface of the driven gear shaft is close to or contacted with the inner wall of the upper shell around the second upper positioning hole, a second lower positioning hole is arranged on the lower shell corresponding to the lower end position of the driven gear shaft, a second lower positioning shaft is coaxially and fixedly connected with the lower end of the driven gear shaft, the second lower positioning shaft is arranged in the second lower positioning hole, the outer diameter of the second lower positioning shaft is equal, the lower end surface of the driven gear shaft is close to or contacted with the inner wall of the lower shell around the second lower positioning hole; the central axis of the wheel body is vertically arranged, an upper opening corresponding to the position of the clamping hole is positioned on the upper shell, a lower opening corresponding to the position of the clamping hole is positioned on the lower shell, the inner wall of the clamping hole extends upwards to form an upper flange, the upper flange is arranged in the upper opening in a penetrating way, the outer diameter of the upper flange is slightly smaller than or equal to the inner diameter of the upper opening, the outer wall of the upper flange corresponding to the position between the upper opening and the wheel body extends outwards to form an upper positioning ring platform, the outer diameter of the upper positioning ring platform is larger than the inner diameter of the upper opening, the upper end surface of the upper positioning ring platform is close to or contacted with the inner wall of the upper shell at the position around the upper opening, the inner wall of the clamping hole extends downwards to form a lower flange, the lower flange is arranged in the lower opening in a penetrating way, the outer diameter of the lower flange is slightly smaller than or equal to the inner diameter of the lower opening, the lower end surface of the lower positioning ring platform is close to or contacted with the inner wall of the lower shell at the periphery of the lower opening.

The upper shell is fixedly provided with a mounting plate, the mounting plate is provided with a through hole, the hydraulic motor is fixedly mounted on the mounting plate through the hexagon socket head cap screw, and an output shaft of the hydraulic motor penetrates through the through hole and is fixedly connected with the upper end of the driving gear shaft.

The cross section of the clamping hole can be in an equilateral hexagon structure.

The upper shell can be provided with a filling nozzle for filling lubricating oil, and the upper shell is fixedly arranged on the lower shell through an outer hexagon bolt.

The driving gear shaft, the driven gear shaft and the sleeve gear can all be straight-tooth gears.

The lower shell can be provided with a handle for an operator to grasp when using.

The utility model has the advantages of reasonable structure and simple operation, can not only realize incessant continuous rotation nut or bolt when the dismouting operation, and only need once operation, can accomplish a set of bolt and nut's dismouting work, saved the dismouting time, improved work efficiency.

Drawings

Fig. 1 is a schematic view of the sectional structure of the present invention.

Fig. 2 is a left side view schematic sectional structure of the present invention.

Fig. 3 is a schematic view of the top view structure of the present invention.

The codes in the figures are respectively: 1-hydraulic motor, 2-lower shell, 3-upper shell, 4-driving gear shaft, 5-driven gear, 6-driven gear shaft, 7-mounting plate, 8-first upper positioning shaft, 9-first lower positioning shaft, 10-second upper positioning shaft, 11-second lower positioning shaft, 12-wheel body, 13-upper flange, 14-lower flange, 15-first upper positioning hole, 16-first lower positioning hole, 17-second upper positioning hole, 18-second lower positioning hole, 19-opening, 20-inner hexagonal bolt, 21-outer hexagonal bolt and 22-filling nozzle.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.

As shown in fig. 1-3, the hydraulic gear wrench comprises a housing, a sleeve gear, a gear set and a hydraulic motor 1, wherein the housing is internally provided with the sleeve gear, the sleeve gear comprises a gear body and gear teeth arranged on the outer edge of the gear body 12, a clamping hole penetrating through the gear body 12 is coaxially formed in the gear body 12, an opening 19 is formed in the housing corresponding to the clamping hole, the housing is provided with the hydraulic motor 1, and an output shaft of the hydraulic motor 1 is in transmission connection with the sleeve gear through at least two stages of gear sets. When the hydraulic motor is used, an operator only needs to enable the bolt or the nut to be disassembled and assembled to penetrate through the opening 19 in the shell and be located in the clamping hole, the bolt or the nut to be disassembled and assembled is clamped through the clamping hole, the hydraulic motor 1 is started, the torque of the hydraulic motor 1 is transmitted to the sleeve gear through the gear set, and therefore the bolt or the nut is screwed up or loosened to complete disassembling and assembling operation. The utility model discloses an incessant continuous rotation nut of hydraulic motor or bolt only need one-time operation, can accomplish a set of bolt and nut's dismouting work, saved the dismouting time, improved work efficiency low.

The first embodiment can be further optimized or/and improved according to actual needs:

as shown in fig. 1-3, the gear set is two-stage, and includes a driving gear shaft 4, a driven gear 5 and a driven gear shaft 6, the driving gear shaft 4 is fixedly connected with an output shaft of the hydraulic motor 1, the driven gear 5 is fixedly sleeved on the driven gear shaft 6, the driven gear 5 is engaged with the driving gear shaft 4, and the sleeve gear is engaged with the driven gear shaft 6. According to needs, hydraulic motor 1's output shaft and 4 splined connections of driving gear axle, driven

gear

5 and 6 splined connections of driven gear axle are through adopting splined connection for connect more reliably, the transmission is more steady.

As shown in the attached fig. 1-3, the housing is composed of an upper housing 3 and a lower housing 2 which are fixedly installed together, the central axis of the driving gear shaft 4 is vertically arranged, a first upper positioning hole 15 is arranged on the upper housing 3 corresponding to the upper end position of the driving gear shaft 4, a first upper positioning shaft 8 is coaxially and fixedly connected to the upper end of the driving gear shaft 4, the first upper positioning shaft 8 is arranged in the first upper positioning hole 15 in a penetrating manner, the outer diameter of the first upper positioning shaft 8 is equal to or slightly smaller than the inner diameter of the first upper positioning hole 15, the shaft diameter of the driving gear shaft 4 is larger than the inner diameter of the first upper positioning hole 15, the upper end surface of the driving gear shaft 4 is close to or contacted with the inner wall of the upper housing 3 around the first upper positioning hole 15, a first lower positioning hole 16 is arranged on the lower housing 2 corresponding to the lower end position of the driving gear, the shaft diameter of the first lower positioning shaft 9 is smaller than that of the driving gear shaft 4, the first lower positioning shaft 9 penetrates through the first lower positioning hole 16, the outer diameter of the first lower positioning shaft 9 is equal to or slightly smaller than the inner diameter of the first lower positioning hole 16, the shaft diameter of the driving gear shaft 4 is larger than the inner diameter of the first lower positioning hole 16, and the lower end face of the driving gear shaft 4 is close to or in contact with the inner wall of the lower shell 2 around the first lower positioning hole 16; the central axis of the driven gear shaft 6 is vertically arranged, a second upper positioning hole 17 is arranged on the upper shell 3 corresponding to the upper end position of the driven gear shaft 6, a second upper positioning shaft 10 is coaxially and fixedly connected with the upper end of the driven gear shaft 6, the second upper positioning shaft 10 is arranged in the second upper positioning hole 17 in a penetrating way, the outer diameter of the second upper positioning shaft 10 is equal to or slightly smaller than the inner diameter of the second upper positioning hole 17, the shaft diameter of the driven gear shaft 6 is larger than the inner diameter of the second upper positioning hole 17, the upper end surface of the driven gear shaft 6 is close to or contacted with the inner wall of the upper shell 3 around the second upper positioning hole 17, a second lower positioning hole 18 is arranged on the lower shell 2 corresponding to the lower end position of the driven gear shaft 6, a second lower positioning shaft 11 is coaxially and fixedly connected with the lower end of the driven gear shaft 6, the second lower positioning shaft 11 is arranged in the second lower positioning hole 18 in a penetrating, the shaft diameter of the driven gear shaft 6 is larger than the inner diameter of the second lower positioning hole 18, and the lower end face of the driven gear shaft 6 is close to or in contact with the inner wall of the lower shell 2 around the second lower positioning hole 18; the central axis of the wheel body 12 is vertically arranged, an upper opening 19 corresponding to the position of the clamping hole is positioned on the upper shell 3, a lower opening 19 corresponding to the position of the clamping hole is positioned on the lower shell 2, the inner wall of the clamping hole extends upwards to form an upper flange 13, the upper flange 13 is arranged in the upper opening 19 in a penetrating way, the outer diameter of the upper flange 13 is slightly smaller than or equal to the inner diameter of the upper opening 19, the outer side wall of the upper flange 13 corresponding to the position between the upper opening 19 and the wheel body 12 extends outwards to form an upper positioning ring platform, the outer diameter of the upper positioning ring platform is larger than the inner diameter of the upper opening 19, the upper end surface of the upper positioning ring platform is close to or contacted with the inner wall of the upper shell 3 at the position around the upper opening 19, the inner wall of the clamping hole extends downwards to form a lower flange 14, the lower flange 14 is arranged in the lower opening 19 in a penetrating way, the outer diameter of the lower flange 14 is slightly smaller than or, the outer diameter of the lower positioning ring platform is larger than the inner diameter of the lower opening 19, and the lower end face of the lower positioning ring platform is close to or contacted with the inner wall of the lower shell 2 at the position around the lower opening 19. Through adopting above-mentioned structure for whole device compact structure to be convenient for install driving gear shaft 4, driven gear axle 6 and sleeve gear fast inside the casing and keep rotating on the relatively fixed position, make whole gear train transmission steady, reliable operation.

As shown in fig. 1, an installation plate 7 is fixedly installed on the upper housing 3, a through hole is formed in the installation plate 7, the hydraulic motor 1 is fixedly installed on the installation plate 7 through a hexagon socket head cap screw 20, and an output shaft of the hydraulic motor 1 penetrates through the through hole to be fixedly connected with the upper end of the driving gear shaft 4. The mounting plate 7 is provided integrally with the upper case 3 or the mounting plate is welded to the case as required.

As shown in fig. 3, the cross section of the card hole is in an equilateral hexagon structure. Through setting up the cross section for equilateral hexagon's card hole, be convenient for will treat the bolt or the nut chucking of dismouting for it is more convenient to operate.

As shown in fig. 3, a filling nozzle 22 for filling lubricating oil is provided on the upper case 3, and the upper case 3 is fixedly mounted on the lower case 2 by an outer hexagonal bolt. According to the requirement, the filling nozzle 22 is in the prior art, lubricating oil can be conveniently filled into the gear set through the filling nozzle 22, the gear transmission is stable, and the service life of the gear set is prolonged.

The driving gear shaft 4, the driven gear 5, the driven gear shaft 6 and the sleeve gear are all straight-tooth gears as required. All parts of the gear set and the sleeve gear are in straight gear transmission, and large torque transmission is facilitated.

According to the requirement, a handle for an operator to grasp is arranged on the lower shell 2. Set up the handle and be convenient for operating personnel to operate when using on casing 2 down the utility model discloses, reduce operating personnel intensity of labour, prevent to lead to because of vibrations at the dismouting in-process the utility model discloses the slippage.

Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.

Claims

1. The utility model provides a hydraulic gear spanner, its characterized in that includes casing, sleeve gear, gear train and hydraulic motor, is equipped with sleeve gear in the casing, and sleeve gear includes the wheel body and locates the teeth of a cogwheel of wheel body outer fringe, and the coaxial card hole of having link up in the wheel body of seting up in the wheel body corresponds the position in card hole and is equipped with the opening on the casing, is equipped with hydraulic motor on the casing, and hydraulic motor's output shaft and sleeve gear pass through at least two-stage gear train transmission and are connected.

2. The hydraulic gear wrench as claimed in claim 1, wherein the gear train is two-stage and includes a driving gear shaft fixedly connected to the output shaft of the hydraulic motor, a driven gear fixedly secured to the driven gear shaft, a sleeve gear engaged with the driven gear shaft, and a driven gear shaft.

3. The hydraulic gear wrench as claimed in claim 1 or 2, wherein the housing comprises an upper housing and a lower housing fixedly mounted together, the central axis of the driving gear shaft is vertically disposed, the upper housing corresponding to the upper end of the driving gear shaft is provided with a first upper positioning hole, the upper end of the driving gear shaft is coaxially and fixedly connected with a first upper positioning shaft, the first upper positioning shaft is inserted into the first upper positioning hole, the outer diameter of the first upper positioning shaft is equal to or slightly smaller than the inner diameter of the first upper positioning hole, the axial diameter of the driving gear shaft is larger than the inner diameter of the first upper positioning hole, the upper end surface of the driving gear shaft is close to or in contact with the inner wall of the upper housing around the first upper positioning hole, the lower housing corresponding to the lower end of the driving gear shaft is provided with a first lower positioning hole, the lower end of the driving gear shaft is coaxially and fixedly connected with a first lower positioning shaft, the, the first lower positioning shaft penetrates through the first lower positioning hole, the outer diameter of the first lower positioning shaft is equal to or slightly smaller than the inner diameter of the first lower positioning hole, the shaft diameter of the driving gear shaft is larger than the inner diameter of the first lower positioning hole, and the lower end face of the driving gear shaft is close to or in contact with the inner wall of the lower shell around the first lower positioning hole; the central axis of the driven gear shaft is vertically arranged, a second upper positioning hole is arranged on the upper shell corresponding to the upper end position of the driven gear shaft, a second upper positioning shaft is coaxially and fixedly connected with the upper end of the driven gear shaft, the second upper positioning shaft is arranged in the second upper positioning hole in a penetrating way, the outer diameter of the second upper positioning shaft is equal to or slightly smaller than the inner diameter of the second upper positioning hole, the shaft diameter of the driven gear shaft is larger than the inner diameter of the second upper positioning hole, the upper end surface of the driven gear shaft is close to or contacted with the inner wall of the upper shell around the second upper positioning hole, a second lower positioning hole is arranged on the lower shell corresponding to the lower end position of the driven gear shaft, a second lower positioning shaft is coaxially and fixedly connected with the lower end of the driven gear shaft, the second lower positioning shaft is arranged in the second lower positioning hole, the outer diameter of the second lower positioning shaft is equal, the lower end surface of the driven gear shaft is close to or contacted with the inner wall of the lower shell around the second lower positioning hole; the central axis of the wheel body is vertically arranged, an upper opening corresponding to the position of the clamping hole is positioned on the upper shell, a lower opening corresponding to the position of the clamping hole is positioned on the lower shell, the inner wall of the clamping hole extends upwards to form an upper flange, the upper flange is arranged in the upper opening in a penetrating way, the outer diameter of the upper flange is slightly smaller than or equal to the inner diameter of the upper opening, the outer wall of the upper flange corresponding to the position between the upper opening and the wheel body extends outwards to form an upper positioning ring platform, the outer diameter of the upper positioning ring platform is larger than the inner diameter of the upper opening, the upper end surface of the upper positioning ring platform is close to or contacted with the inner wall of the upper shell at the position around the upper opening, the inner wall of the clamping hole extends downwards to form a lower flange, the lower flange is arranged in the lower opening in a penetrating way, the outer diameter of the lower flange is slightly smaller than or equal to the inner diameter of the lower opening, the lower end surface of the lower positioning ring platform is close to or contacted with the inner wall of the lower shell at the periphery of the lower opening.

4. The hydraulic gear wrench as claimed in claim 3, wherein a mounting plate is fixedly mounted on the upper housing, a through hole is formed in the mounting plate, the hydraulic motor is fixedly mounted on the mounting plate through a hexagon socket head cap screw, and an output shaft of the hydraulic motor passes through the through hole and is fixedly connected with the upper end of the driving gear shaft.

5. The fluid operated gear wrench as claimed in claim 1, 2 or 4, wherein the cross-section of the engagement hole is in the form of an equilateral hexagon.

6. The hydraulic gear wrench as recited in claim 3, wherein said engagement opening has an equilateral hexagonal cross-section.

7. The hydraulic gear wrench as claimed in claim 3, wherein the upper housing is provided with a filling nozzle for filling lubricating oil, and the upper housing is fixedly mounted on the lower housing by an outer hexagon bolt.

8. The hydraulic gear wrench as claimed in claim 4, wherein the upper housing is provided with a filling nozzle for filling lubricating oil, and the upper housing is fixedly mounted on the lower housing by an outer hexagon bolt.

9. The hydraulic gear wrench as claimed in claim 2, wherein the drive gear shaft, the driven gear shaft and the socket gear are all straight gears.

10. The hydraulic gear wrench as claimed in claim 1 or 2, wherein the housing is provided with a handle for an operator to grasp when using the hydraulic gear wrench.