A sleeve tool for adjusting a nut

Abstract

The utility model relates to mechanical engineering technical field, especially a sleeve tool for adjusting nut. The tool includes sleeve head and screw rod, one end of sleeve head is equipped with nut cooperation groove, the inside screw thread hole along the axial direction is equipped in sleeve head, screw rod one end is equipped with spanner clamping groove, the axis of spanner clamping groove and nut cooperation groove coincides, and the outside screw thread of screw rod is equipped with the adaptation of inside screw thread hole. When using, adjusting nut is sleeved in nut cooperation groove, and screw rod is screwed in inside screw thread hole, adjusting rod is inserted into spanner clamping groove, and the relative rotation between adjusting nut and adjusting rod is made through the relative rotation of screw rod and sleeve head, and the high accuracy characteristic of the transmission of screw is used, and the adjustment accuracy is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a sleeve tool for adjusting nuts. Background Technology

[0002] The D633 servo valve, a commonly used electro-hydraulic servo valve in hydraulic control systems, requires mechanical zeroing. This is a crucial operation to ensure the valve core is in the neutral (zero) position when there is no electrical signal input, thus ensuring the initial stability of the hydraulic system. The adjustment mechanism of this servo valve is as follows: Figure 1 As shown, it consists of an adjusting nut 16 and an adjusting rod 17.

[0003] When performing zeroing operations, a socket tool is needed to precisely adjust the adjusting nut 16 and the adjusting rod 17 to achieve accurate control of the servo valve. However, the socket tools currently used have problems such as inconvenience in operation, poor adjustment accuracy, and limited applicability, making it difficult to meet the needs of efficient and high-precision adjustment in actual production.

[0004] At the same time, in actual work, we often encounter similar situations. Figure 1 , Figure 2 The adjustment or locking mechanism shown typically uses two wrenches for pre-tightening or adjustment. However, during precision adjustment, uneven force applied by the two wrenches can easily lead to over-adjustment. Utility Model Content

[0005] To address the technical problem of low operational precision in existing socket tools, this utility model provides a socket tool for adjusting nuts. Therefore, the present invention provides the following technical solution: A socket tool for adjusting nuts includes a socket head and a screw. One end of the socket head is provided with a nut mating groove, and the socket head is provided with an internal threaded hole along the axial direction. One end of the screw is provided with a wrench holding groove, the axis of which coincides with the axis of the nut mating groove. The screw is provided with an external thread that matches the internal threaded hole.

[0006] Furthermore, the end of the screw away from the wrench clamping groove is provided with a gripping part, and scales for measuring angles are installed on the opposite end faces of the gripping part and the socket head.

[0007] Furthermore, the nut groove is provided with wrench pieces of progressively decreasing size, and the wrench pieces are nested together.

[0008] Furthermore, the end of the screw is provided with a ratchet groove, in which a ratchet and a locking plate are provided that cooperate with each other. A wrench clamping groove is provided at the axis of the ratchet. A lever parallel to its own axis is passed through the screw. One end of the lever is connected to the locking plate, and the other end of the lever is equipped with a lever handle.

[0009] Furthermore, the sleeve head and the screw are both provided with leverage holes on their side walls.

[0010] Furthermore, the wrench blade is made of a magnetic material, and the socket head is made of a metal material that can be attracted by the wrench blade.

[0011] Furthermore, the two scales are respectively mounted on the corresponding grip and sleeve head by screws.

[0012] Advantages and positive effects of this utility model: In use, the adjusting nut is placed in the nut groove, the screw thread is installed in the internal thread hole, and the adjusting rod is inserted into the wrench clamping groove. By rotating the screw and the socket head relative to each other, the adjusting nut and the adjusting rod can rotate relative to each other. With the high precision characteristics of the thread drive, the adjustment accuracy is effectively improved. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural diagram of the regulating mechanism of the servo valve.

[0015] Figure 2 This is a structural diagram of a double-nut locking mechanism.

[0016] Figure 3 This is a front view of a sleeve tool for adjusting nuts provided by this utility model.

[0017] Figure 4 A half-sectional view of the socket head of a socket tool for adjusting nuts provided by this utility model.

[0018] Figure 5 A side view of the socket head of a socket tool for adjusting nuts provided by this utility model.

[0019] Figure 6 A half-sectional view of the screw of a sleeve tool for adjusting nuts provided by this utility model.

[0020] Figure 7 A side view of the screw of a sleeve tool for adjusting nuts provided by this utility model.

[0021] Figure 8This utility model provides a diagram of a locking mechanism for a sleeve tool used for adjusting nuts.

[0022] Figure 9 This utility model provides a structural diagram of a wrench blade for adjusting nuts using a socket tool.

[0023] In the diagram: 1. Screw; 2. Nut groove; 3. Ruler; 4. Screw; 5. Wrench blade; 6. Ratchet; 7. Lever handle; 8. Lever; 9. Locking plate; 10. Assist hole; 11. Socket head; 12. Grip; 13. Internal threaded hole; 14. Ratchet groove; 15. Wrench clamping groove; 16. Adjusting nut; 17. Adjusting rod. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] This utility model provides a sleeve tool for adjusting nuts, such as... Figure 1 As shown, it includes a sleeve head 11 and a screw 1, as... Figures 3-5 and Figure 9 As shown, one end of the socket head 11 has a nut mating groove 2, and the socket head 11 has an internal threaded hole 13 along the axial direction. The nut mating groove 2 contains wrench pieces 5 of progressively decreasing size, and the wrench pieces 5 are nested together. The nut mating groove 2 is used to hold and adjust the nut 16. Since different adjusting nuts 16 have different specifications, various types of adjusting nuts 16 can be adapted by nesting wrench pieces 5 of different specifications. The wrench pieces 5 are made of magnetic material, and the socket head 11 is made of a metal material that can be attracted by the wrench pieces 5. The wrench pieces 5 are fixed in the nut mating groove 2 by magnetic attraction. Figure 9 As shown, the dimensions of each wrench blade (ABCD) increase sequentially and can be nested within each other.

[0026] like Figure 6 , Figure 7 As shown, one end of the screw 1 is provided with a wrench clamping groove 15, the axis of which coincides with the axis of the nut mating groove 2. The screw 1 is provided with an external thread that matches the internal threaded hole 13. The end of the screw 1 away from the wrench clamping groove 15 is provided with a gripping part 12. A scale 3 for measuring angle is installed on the opposite end face of the gripping part 12 and the socket head 11 by screws 4. When the screw 1 and the socket head 11 rotate relative to each other, the rotation angle is measured by the scale 3, improving the adjustment accuracy.

[0027] like Figures 7-8 As shown, the end of the screw 1 is provided with a ratchet groove 14, in which a ratchet 6 and a locking piece 9 are provided for mutual engagement. A wrench clamping groove 15 is provided at the axis of the ratchet 6. A lever 8 parallel to its own axis is passed through the screw 1. One end of the lever 8 is connected to the locking piece 9, and the other end of the lever 8 is equipped with a lever handle 7. The lever 8 and the screw 1 are interference-fitted, and the lever 8 is fixed by a preload. When the force of moving the lever handle 7 exceeds the preload, the lever 8 can be moved.

[0028] like Figure 3 As shown, both the sleeve head 11 and the gripping part 12 have leverage holes 10 on their side walls.

[0029] Working principle: In use, the wrench piece 5 is nested in the nut groove 2 to fit the size of the adjusting nut 16, and the adjusting nut 16 is snapped into the wrench piece 5. The lever handle 7 is turned, causing the locking piece 9 to lift, at which point the ratchet 6 can rotate. Adjust to the appropriate position so that the adjusting rod 17 is inserted into the wrench clamping groove 15. The lever handle 7 is then turned back, causing the locking piece 9 to abut against the ratchet 6, restricting its rotation. The relative rotation of the grip 12 and the socket head 11 achieves adjustment between the adjusting rod and the adjusting nut. During rotation, a lever can be inserted into the lever hole 10 to achieve relative rotation between the socket head 11 and the grip 12, making it more labor-saving.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sleeve tool for adjusting nuts, characterized in that, It includes a sleeve head (11) and a screw (1). One end of the sleeve head (11) is provided with a nut mating groove (2). The sleeve head (11) is provided with an internal threaded hole (13) along the axial direction. One end of the screw (1) is provided with a wrench holding groove (15). The wrench holding groove (15) coincides with the axis of the nut mating groove (2). The screw (1) is provided with an external thread that matches the internal threaded hole (13).

2. A sleeve tool for adjusting nuts according to claim 1, characterized in that, The screw (1) has a gripping part (12) at the end away from the wrench clamping groove (15), and a scale (3) for measuring angle is installed on the opposite end face of the gripping part (12) and the socket head (11).

3. A sleeve tool for adjusting nuts according to claim 1, characterized in that, The nut groove (2) is provided with wrench pieces (5) of progressively decreasing size, and each wrench piece (5) is nested together.

4. A sleeve tool for adjusting nuts according to claim 1, characterized in that, The end of the screw (1) is provided with a ratchet groove (14), and a ratchet (6) and a locking plate (9) are provided in the ratchet groove (14). The wrench clamping groove (15) is located at the axis of the ratchet (6). A lever (8) parallel to its own axis is passed through the screw (1). One end of the lever (8) is connected to the locking plate (9), and the other end of the lever (8) is equipped with a lever handle (7).

5. A sleeve tool for adjusting nuts according to claim 1, characterized in that, Both the sleeve head (11) and the screw (1) have leverage holes (10) on their side walls.

6. A sleeve tool for adjusting nuts according to claim 3, characterized in that, The wrench blade (5) is made of magnetic material, and the socket head (11) is made of metal that can be attracted by the wrench blade (5).

7. A sleeve tool for adjusting nuts according to claim 2, characterized in that, The two scales (3) are respectively mounted on the corresponding grip (12) and sleeve head (11) by screws (4).

Images