Wrench for disassembling and assembling actuating cylinder nut of G450 aircraft landing gear

Abstract

The utility model discloses a G450 aircraft landing gear actuating cylinder nut dismounting wrench, which belongs to the technical field of aircraft maintenance devices, and is characterized in that the wrench comprises a wrench body and a connecting mechanism, the wrench body comprises a wrench rod, a wrench head and wrench teeth, the wrench head is of a semicircular structure, the wrench teeth are fixedly mounted at the upper end of the wrench head, and the wrench rod is connected with the connecting mechanism. The wrench teeth are installed at the inner ring position of the wrench head, and the lower end of the wrench head is fixedly connected with the wrench rod. A connecting mechanism is installed in the long-strip-shaped through hole of the wrench rod and comprises a connecting block and an adjusting screw rod, a square through hole in the connecting block is correspondingly matched with a square head of the torque wrench, and the connecting block is in sliding fit with the long-strip-shaped through hole of the wrench rod. And the other end of the adjusting screw rod penetrates through the threaded through hole in the tail end of the wrench rod and is in threaded connection with the threaded through hole. Compared with the prior art, the device has the characteristic that the actuating cylinder nut is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft maintenance devices, in particular to a G450 aircraft landing gear actuator nut disassembly and assembly spanner. Background Art

[0002] After the G450 aircraft has been flying for a period of time, in order to ensure its safety performance and operational stability, the nuts on the aircraft's main landing gear actuator must be inspected in detail according to established requirements. This step is crucial because the tightness of the nuts is directly related to the stability and safety of the aircraft during takeoff and landing. However, there are some significant problems with the current nut disassembly and assembly process, which not only affects the efficiency of maintenance work, but also poses a potential threat to aircraft safety.

[0003] When removing the nut, technicians usually use a hook wrench, which is designed to easily remove the nut. However, when the nut needs to be reinstalled, there are clear and strict requirements for the tightening torque to ensure that the nut can be firmly fixed on the actuator without being damaged due to over-tightening.

[0004] However, the existing hook wrenches do not have the function of controlling the tightening torque, which means that when reinstalling the nut, technicians need to use other tools or methods to ensure the accuracy of the tightening torque, which undoubtedly increases the complexity and difficulty of the operation. In addition, due to the limited space of the actuator, it is extremely difficult to perform precise operations in this small space. Technicians need to spend more time and energy to complete this step, which not only affects work efficiency, but may also cause safety hazards due to improper operation. Summary of the invention

[0005] The utility model aims to solve the above-mentioned deficiencies in the prior art and provide a G450 aircraft landing gear actuator barrel nut disassembly and assembly wrench to facilitate the disassembly and installation of the actuator barrel nut.

[0006] The utility model provides a G450 aircraft landing gear actuator barrel nut disassembly and assembly wrench, which is characterized by comprising a wrench body and a connecting mechanism, wherein the wrench body comprises a wrench rod, a wrench head and wrench teeth, the wrench head is in a semicircular ring structure, the upper end of the wrench head is fixedly mounted with wrench teeth, the wrench teeth are mounted at the inner ring position of the wrench head and face the center position of the wrench head, and the lower end of the wrench head is fixedly connected with the wrench rod; the wrench rod is provided with an elongated through hole, the elongated through hole of the wrench rod is provided with a connecting mechanism, the connecting mechanism comprises a connecting block and an adjusting screw, the connecting block is provided with a square through hole, the square through hole corresponds to the square head of the torque wrench, and the connecting block is slidably matched with the elongated through hole of the wrench rod; the tail end of the wrench rod is provided with a threaded through hole intersecting the elongated through hole, one end of the adjusting screw is rotationally matched with the connecting block, and the other end passes through the threaded through hole at the tail end of the wrench rod and is threadedly connected with it.

[0007] Furthermore, a blind hole is provided on the wall at one end of the connecting block, one end of the adjusting screw is rotatably matched with the blind hole on the end wall of the connecting block through a bearing, and the other end passes through the through hole at the tail end of the wrench rod and is connected to the rotating handle.

[0008] Furthermore, slideways are respectively provided on both side walls of the elongated through hole of the wrench rod, and elongated guide through holes are respectively provided on both side walls of the wrench rod. The elongated guide through holes are connected with the slideways, and sliders are respectively fixedly installed on both sides of the connecting block, and the sliders are slidably matched with the slideways.

[0009] Furthermore, a guide groove is provided in the middle position of the slider, and a clamping block is installed in the guide groove. The clamping block is slidably matched with the guide groove. A threaded through hole is provided on the clamping block, and a blind hole is provided on the side wall of the connecting block located at the guide groove position. One end of the clamping screw is rotatably matched with the blind hole on the side wall of the connecting block, and the other end passes through the threaded through hole of the clamping block and the long guide through hole of the wrench rod in turn and is connected to the rotating handle. The clamping screw is threadedly matched with the threaded through hole of the clamping block.

[0010] Compared with the prior art, the utility model has the following outstanding beneficial effects:

[0011] 1. The utility model can be used in conjunction with a torque wrench, through which the tightening torque of the rotating nut can be controlled;

[0012] 2. The utility model can adjust the distance between the connecting block and the wrench head by adjusting the screw, and fix the connecting block and the wrench rod by adjusting the clamping screw to adjust the clamping block, so as to cooperate with the torque wrench to meet different tightening torque requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is the front view of the utility model.

[0015] Figure 3 It is a bottom view of the utility model.

[0016] Figure 4 It is a schematic diagram of the internal mechanism of the utility model. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0018] like Figures 1 to 3 As shown, the utility model comprises a wrench body 1 and a connecting mechanism 2.

[0019] The wrench body 1 includes a wrench rod 102, a wrench head 101 and wrench teeth 103. The wrench head 101 is in a semicircular ring structure. The wrench teeth 103 are fixedly installed on the upper end of the wrench head 101. The wrench teeth 103 are installed at the inner ring position of the wrench head 101 and face the center position of the wrench head 101. The lower end of the wrench head 101 is fixedly connected to the wrench rod 102, and the wrench rod 102 and the wrench teeth 103 are located on the same straight line.

[0020] like Figure 4 As shown, the wrench rod 102 is provided with an elongated through hole, and a connecting mechanism 2 is installed in the elongated through hole of the wrench rod 102. The connecting mechanism 2 includes a connecting block 201, an adjusting screw 202, a clamping block 205 and a clamping screw 203. A square through hole is provided on the connecting block 201, and the square through hole corresponds to the square head of the torque wrench. The connecting block 201 and the elongated through hole of the wrench rod 102 are slidably matched.

[0021] The tail end of the wrench rod 102 is provided with a threaded through hole intersecting the long strip through hole, and a blind hole is provided on the wall at one end of the connecting block 201. One end of the adjusting screw 202 is rotatably matched with the blind hole on the end wall of the connecting block 201 through a bearing, and the other end passes through the through hole at the tail end of the wrench rod 102 and is connected to the rotating handle. The adjusting screw 202 is threadedly matched with the threaded through hole at the tail end of the wrench rod 102. By rotating the adjusting screw 202, the connecting block 201 can be driven to move along the long strip through hole of the wrench rod 102.

[0022] Slideways are respectively provided on the two side walls of the elongated through hole of the wrench rod 102, and elongated guide through holes are respectively provided on the two side walls of the wrench rod 102. The elongated guide through holes are connected to the slideways. Slide blocks 204 are respectively fixedly installed on both sides of the connecting block 201, and the slide blocks 204 slide in cooperation with the slideways. A guide groove is provided in the middle position of the slide block 204, and a clamping block 205 is installed in the guide groove, and the clamping block 205 slides in cooperation with the guide groove.

[0023] The clamping block 205 is provided with a threaded through hole, and the side wall of the connecting block 201 at the guide groove position is provided with a blind hole. One end of the clamping screw 203 is rotatably matched with the blind hole on the side wall of the connecting block 201 through a bearing, and the other end is sequentially passed through the threaded through hole of the clamping block 205 and the long strip guide through hole of the wrench rod 102 to be connected to the rotating handle, and the clamping screw 203 is threadedly matched with the threaded through hole of the clamping block 205. When the clamping screw 203 is rotated, the clamping screw 203 can drive the clamping block 205 to move along the guide groove, so that the two clamping blocks 205 move outward and press against the outer end wall of the slideway to fix the connecting block 201.

[0024] In the optimized solution, a scale is provided on the side end of the long strip through hole of the wrench rod 102, and the scale indicates the distance from the wrench rod 102 to the center of the wrench head 101. An arrow corresponding to the scale is provided on the connecting block 201, thereby indicating the distance from the connecting block 201 to the center of the wrench head 101.

[0025] The operation process is as follows: when using the utility model, the wrench head 101 is sleeved on the outside of the nut, the wrench teeth 103 are placed in the groove of the outer wall of the nut, the lever torque is calculated, and the distance from the square through hole of the connecting block 201 to the center of the circle of the wrench head 101 is adjusted, and then the clamping screw 203 is rotated to fix the connecting block 201, and the square head of the torque wrench is inserted into the square through hole of the connecting block 201, and the torque wrench is rotated to complete the installation of the nut.

[0026] It should be noted that the specific embodiments of the present invention have been described in detail. For those skilled in the art, various obvious changes to the present invention without departing from the spirit and scope of the present invention are within the protection scope of the present invention.

Claims

1. A G450 aircraft landing gear actuator nut disassembly and assembly wrench, characterized in that: The invention comprises a wrench body (1) and a connecting mechanism (2), wherein the wrench body (1) comprises a wrench rod (102), a wrench head (101) and wrench teeth (103), the wrench head (101) being in a semicircular ring structure, the wrench teeth (103) being fixedly mounted on the upper end of the wrench head (101), the wrench teeth (103) being mounted on the inner ring position of the wrench head (101) and facing the center position of the wrench head (101), the lower end of the wrench head (101) being fixedly connected to the wrench rod (102); the wrench rod (102) being provided with a long strip through hole, ... A connecting mechanism (2) is installed in the long strip through hole of the wrench rod (102), and the connecting mechanism (2) comprises a connecting block (201) and an adjusting screw (202). The connecting block (201) is provided with a square through hole, and the square through hole corresponds to the square head of the torque wrench. The connecting block (201) is slidably matched with the long strip through hole of the wrench rod (102); the tail end of the wrench rod (102) is provided with a threaded through hole that intersects the long strip through hole, one end of the adjusting screw (202) is rotatably matched with the connecting block (201), and the other end passes through the threaded through hole at the tail end of the wrench rod (102) and is threadedly connected thereto.

2. The G450 aircraft landing gear actuator nut disassembly and assembly wrench according to claim 1, characterized in that: A blind hole is provided on the wall at one end of the connecting block (201); one end of the adjusting screw (202) is rotatably matched with the blind hole on the end wall of the connecting block (201) via a bearing; the other end passes through a through hole at the rear end of the wrench rod (102) and is connected to the rotating handle.

3. The G450 aircraft landing gear actuator nut disassembly and assembly wrench according to claim 1, characterized in that: Slideways are provided on both side walls of the long strip through hole of the wrench rod (102), and long strip guide through holes are provided on both side walls of the wrench rod (102). The long strip guide through holes are connected to the slideways. Slide blocks (204) are fixedly installed on both sides of the connecting block (201), and the slide blocks (204) are slidably matched with the slideways.

4. The G450 aircraft landing gear actuator nut disassembly and assembly wrench according to claim 3, characterized in that: A guide groove is provided in the middle position of the slider (204), and a clamping block (205) is installed in the guide groove. The clamping block (205) is slidably matched with the guide groove. A threaded through hole is provided on the clamping block (205). A blind hole is provided on the side wall of the connecting block (201) at the position of the guide groove. One end of the clamping screw (203) is rotatably matched with the blind hole on the side wall of the connecting block (201), and the other end passes through the threaded through hole of the clamping block (205) and the long strip guide through hole of the wrench rod (102) in sequence to be connected to the rotating handle. The clamping screw (203) is threadedly matched with the threaded through hole of the clamping block (205).

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