Coaxial counter-force arm hydraulic torque wrench

Abstract

The utility model relates to the technical field of hydraulic torque wrenches, and discloses a coaxial counter-force arm hydraulic torque wrench which comprises a wrench body, the inner wall of the wrench body is rotatably connected with a torque block, the outer wall of the wrench body is fixedly connected with a fixing shell, and the outer wall of the fixing shell is provided with a rotating wheel. The inner wall of the left side of the fixing shell is rotationally connected with a liquid inlet, the inner wall of the right side of the fixing shell is rotationally connected with a liquid outlet, the lower surface of the liquid outlet is fixedly connected with a connecting column, the inner wall of the connecting column is fixedly connected with a first gear, and the tooth end of the first gear is in meshed connection with a rotating assembly; the rotating assembly is used for supporting the connecting column to rotate. According to the hydraulic wrench, the liquid inlet and the liquid outlet are manually rotated, so that the connecting direction of a hydraulic pipeline can be flexibly adjusted, the situation that the wrench cannot be placed at a proper working position due to rigid connection of the pipeline is avoided, and the applicability of the wrench under different working conditions is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic torque wrench technical field especially relates to a coaxial counterforce arm hydraulic torque wrench. BACKGROUND

[0002] Coaxial counterforce arm hydraulic torque wrench works, high pressure hydraulic oil enters the oil cylinder and drives the piston to move, the piston drives the ratchet mechanism to rotate, the ratchet is connected with the sleeve, the sleeve clamps the nut, because the counterforce arm is in coaxial position with the sleeve and is in contact with the operation surface and generates counterforce, under the action of the piston thrust, the sleeve drives the nut to rotate, thereby realizing the accurate controllable fastening or loosening operation to the bolt.

[0003] The conventional coaxial counterforce arm hydraulic torque wrench usually adopts fixed liquid outlet in the process of using, and the connecting direction of the hydraulic pipeline cannot be flexibly adjusted during use. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortage, the utility model provides a coaxial counterforce arm hydraulic torque wrench, aims at improving the problem that the device cannot flexibly adjust the connecting direction of the hydraulic pipeline.

[0005] In order to achieve the above object, the utility model provides the following technical scheme:

[0006] A coaxial counterforce arm hydraulic torque wrench, including the wrench body, the inner wall rotation of the wrench body is connected with the torque block, the outer wall of the wrench body is fixedly connected with the fixed shell, the outer wall of the fixed shell is provided with the rotating wheel, the left side inner wall of the fixed shell is rotationally connected with the liquid inlet, the right side inner wall of the fixed shell is rotationally connected with the liquid outlet, the lower surface of the liquid outlet is fixedly connected with the connecting column, the inner wall of the connecting column is fixedly connected with the gear one, the tooth end of the gear one is provided with the rotating assembly, and the rotating assembly is used for supporting the rotation of the connecting column.

[0007] Preferably, the rotating assembly includes the gear two, the gear three and the gear four, the tooth end of the gear two, the gear three and the gear four is engagedly connected to the tooth end of the gear one, the tooth end of the gear two, the gear three and the gear four is engagedly connected with the gear ring one, and the lower surface of the gear ring one is fixedly connected with the gear ring two.

[0008] Preferably, the inner wall of the fixed shell is rotationally connected with the rotating column, the outer wall of the rotating column is fixedly connected with the mounting frame, the inner wall of the mounting frame is fixedly connected with the electric push rod, and the output end of the electric push rod is connected with the sliding frame.

[0009] Preferably, the inner wall of the fixed shell is rotationally connected with the rotating handle, and the outer wall of the rotating handle is arranged on the inner wall of the mounting frame.

[0010] Preferably, the lower surface of the gear ring two is engagedly connected to the upper surface of the fixed shell.

[0011] Preferably, the inner wall of the sliding frame is slidingly connected to the inner wall of the mounting frame.

[0012] The utility model has the advantages of the following beneficial effects:

[0013] 1. In the utility model, the liquid inlet and the liquid outlet are manually rotated, so that the connection direction of the hydraulic pipeline can be flexibly adjusted, the wrench cannot be placed in a suitable working position due to the rigid connection of the pipeline, and the applicability of the wrench under different working conditions is greatly improved.

[0014] 2. In the utility model, the rotating handle is rotated, and then the electric push rod is started to drive the sliding frame to slide, so that various work requirements can be met, the work efficiency is improved, and the tool storage and management space and cost are also reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A three-dimensional structure schematic diagram of a coaxial counterforce arm hydraulic torque wrench is provided for the utility model;

[0016] Figure 2 A fixed shell partial structure schematic diagram of a coaxial counterforce arm hydraulic torque wrench is provided for the utility model;

[0017] Figure 3 A connecting column partial structure schematic diagram of a coaxial counterforce arm hydraulic torque wrench is provided for the utility model;

[0018] Figure 4 A sliding frame partial structure schematic diagram of a coaxial counterforce arm hydraulic torque wrench is provided for the utility model.

[0019] LEGEND:

[0020] 1. Wrench body; 2. Torque block; 3. Fixed shell; 4. Rotating wheel; 5. Liquid inlet; 6. Liquid outlet; 7. Connecting column; 8. Gear one; 9. Gear two; 10. Gear three; 11. Gear four; 12. Gear ring one; 13. Gear ring two; 14. Rotating column; 15. Mounting frame; 16. Electric push rod; 17. Sliding frame; 18. Rotating handle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the specification of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] With reference to Figures 1-3 The utility model provides an embodiment: a coaxial counterforce arm hydraulic torque wrench, including wrench body 1, the inner wall rotationally connected with torque block 2 of wrench body 1, the outer wall fixedly connected with fixed shell 3 of wrench body 1, the outer wall of fixed shell 3 is provided with rotating wheel 4, the left side inner wall rotationally connected with liquid inlet 5 of fixed shell 3, the right side inner wall rotationally connected with liquid outlet 6 of fixed shell 3, the lower surface fixedly connected with connecting column 7 of liquid outlet 6, the inner wall fixedly connected with gear one 8 of connecting column 7, the tooth end of gear one 8 is provided with rotating assembly, and rotating assembly is used to support the rotation of connecting column 7;Rotating assembly includes gear two 9, gear three 10 and gear four 11, and the tooth end of gear two 9, gear three 10 and gear four 11 is engagedly connected to the tooth end of gear one 8, the tooth end of gear two 9, gear three 10 and gear four 11 is engagedly connected with gear ring one 12, and the lower surface of gear ring one 12 is fixedly connected with gear ring two 13;

[0023] Specifically, wrench body 1 supports torque block 2, is used for fixing fixed shell 3 simultaneously, and is provided with a driving assembly in the inside, the driving assembly is driven torque block 2 to rotate by hydraulic motor, and the hydraulic motor belongs to prior art and will not be described too much, liquid inlet 5 and liquid outlet 6 can be angle adjusted, so that the connecting direction of hydraulic pipeline can be flexibly adjusted, and gear ring two 13 and gear ring one 12 are used to support the rotation of gear two 9, gear three 10 and gear four 11 in the inner wall thereof.

[0024] With reference to Figure 4 The inner wall of fixed shell 3 is rotationally connected with rotating column 14, the outer wall of rotating column 14 is fixedly connected with mounting frame 15, the inner wall of mounting frame 15 is fixedly connected with electric push rod 16, and the output end of electric push rod 16 is connected with sliding frame 17;The inner wall of fixed shell 3 is rotationally connected with rotating handle 18, and the outer wall of rotating handle 18 is arranged on the inner wall of mounting frame 15;

[0025] Specifically, fixed shell 3 is used to support the rotation of rotating column 14 in the inner wall thereof, rotating handle 18 is used to fix and loosen mounting frame 15, so that mounting frame 15 can be retracted to the inner wall of fixed shell 3 when not being used, electric push rod 16 is used to drive sliding frame 17 to slide on the outer wall of mounting frame 15, and sliding frame 17 is used to support.

[0026] With reference to Figure 1 AndFigure 2 The lower surface of the second ring gear 13 is engagedly connected to the upper surface of the fixed shell 3; the inner wall of the sliding frame 17 is slidingly connected to the inner wall of the mounting frame 15;

[0027] Specifically, the second ring gear 13 is used for supporting and fixing the first ring gear 12, the fixed shell 3 is used for supporting and fixing the second ring gear 13, and the sliding frame 17 is used for fixing the entire torque wrench, preventing the wrench body 1 from rotating due to reverse force when the torque wrench is used.

[0028] Working principle: when a coaxial counterforce arm hydraulic torque wrench needs to be used, the outlet port 6 or the inlet port 5 is manually rotated, when the outlet port 6 is rotated, the connecting column 7 is driven to rotate, the connecting column 7 rotating drives the gear end of the gear two 9, the gear three 10 and the gear four 11 to rotate, so that the connection direction of the hydraulic pipeline can be flexibly adjusted, avoiding the hard connection of the pipeline and the inability to place the wrench in the appropriate working position, greatly improving the applicability of the wrench under different working conditions. The rotating handle 18 is manually rotated to loosen or fix the mounting frame 15, and then the electric push rod 16 is started, the electric push rod 16 drives the sliding frame 17 to slide on the inner wall of the mounting frame 15, and finally the sliding frame 17 supports the wrench body 1, preventing the wrench body 1 from being deviated during use, so as to meet various working requirements and improve work efficiency, while reducing tool storage and management space and cost. The coaxial counterforce arm hydraulic torque wrench not only can flexibly adjust the connection direction of the hydraulic pipeline, avoid the hard connection of the pipeline and the inability to place the wrench in the appropriate working position, greatly improve the applicability of the wrench under different working conditions, but also can meet various working requirements, improve work efficiency, and reduce tool storage and management space and cost.

[0029] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A coaxial reaction arm hydraulic torque wrench, comprising a wrench body (1), characterized in that: The inner wall of the wrench body (1) is rotatably connected to a torque block (2), the outer wall of the wrench body (1) is fixedly connected to a fixed shell (3), the outer wall of the fixed shell (3) is provided with a rotating wheel (4), the left inner wall of the fixed shell (3) is rotatably connected to a liquid inlet (5), the right inner wall of the fixed shell (3) is rotatably connected to a liquid outlet (6), the lower surface of the liquid outlet (6) is fixedly connected to a connecting column (7), the inner wall of the connecting column (7) is fixedly connected to a gear (8), the tooth end of the gear (8) is provided with a rotating component, the rotating component is used to support the rotation of the connecting column (7).

2. The coaxial reaction arm hydraulic torque wrench according to claim 1, characterized in that: The rotating assembly includes gear two (9), gear three (10) and gear four (11). The tooth ends of gear two (9), gear three (10) and gear four (11) are meshed with the tooth ends of gear one (8). The tooth ends of gear two (9), gear three (10) and gear four (11) are meshed with gear ring one (12). The lower surface of gear ring one (12) is fixedly connected to gear ring two (13).

3. A coaxial reaction arm hydraulic torque wrench according to claim 2, characterized in that: The inner wall of the fixed shell (3) is rotatably connected to a rotating column (14), the outer wall of the rotating column (14) is fixedly connected to a mounting frame (15), the inner wall of the mounting frame (15) is fixedly connected to an electric push rod (16), and the output end of the electric push rod (16) is connected to a sliding frame (17).

4. A coaxial reaction arm hydraulic torque wrench according to claim 3, characterized in that: The inner wall of the fixed shell (3) is rotatably connected to a rotating handle (18), and the outer wall of the rotating handle (18) is set on the inner wall of the mounting frame (15).

5. A coaxial reaction arm hydraulic torque wrench according to claim 2, characterized in that: The lower surface of the gear ring 2 (13) is engaged with the upper surface of the fixed shell (3).

6. A coaxial reaction arm hydraulic torque wrench according to claim 3, characterized in that: The inner wall of the sliding frame (17) is slidably connected to the inner wall of the mounting frame (15).

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