External throttle table mechanical damping adjusting mechanism

Abstract

The utility model discloses an external accelerator table mechanical damping adjusting mechanism which comprises a force adjusting assembly (1), a mechanical damping assembly (2), a guide wheel (3) and a steel cable (4). The two ends of the steel cable (4) are connected with the force adjusting assembly (1) and the mechanical damping assembly (2) respectively, and the middle is wound on the guide wheel (3). The mechanical friction force is convenient to adjust, the maintenance is convenient, the damping force is stable and reliable, and the portability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of throttle platforms, and in particular relates to a mechanical damping adjustment mechanism for an external throttle platform. Background Art

[0002] The throttle station is an important device for pilots to control the thrust of the aircraft. It directly affects the control characteristics of the aircraft. The size and smoothness of the throttle lever control force on the throttle station are one of the important indicators of the ergonomics of the throttle station. At present, the damping commonly used in the throttle station is mechanical damping. Since the throttle damping mechanism is set as the internal structure of the throttle station (protected by an external cover or box), due to the limitations of product volume and on-board installation and operating space, it is necessary to disassemble the seat or other equipment to disassemble the entire throttle station before there is room to maintain the control force of the throttle station. In addition, mechanical friction makes it inconvenient to adjust the friction, resulting in difficult maintenance, poor portability, and inconvenient friction adjustment. Summary of the invention

[0003] The utility model aims to overcome the above-mentioned disadvantages and provide an external throttle platform mechanical damping adjustment mechanism which is convenient to adjust the mechanical friction force, easy to maintain, has stable and reliable damping force and strong portability.

[0004] The purpose of the utility model and the solution of its main technical problems are achieved by adopting the following technical solutions:

[0005] The utility model discloses an external throttle platform mechanical damping regulating mechanism, comprising a force regulating component, a mechanical damping component, a guide wheel and a steel cable, and is characterized in that two ends of the steel cable are respectively connected to the force regulating component and the mechanical damping component, and the middle part is wound around the guide wheel.

[0006] The force adjustment assembly consists of a screw, a positioning ring, a bracket A, a bearing swivel, a cable connector, a rivet A, a positioning pin, a rivet B, a compression spring A, and a pressure cover. A positioning ring is put on the outer side of the upper end of the screw, and the positioning pin is inserted into the rivet B for riveting. The lower end is screwed into the bracket A, and the lower end of the screw is inserted into the bearing swivel and the rivet A for riveting. The bearing swivel is connected to the cable connector through a steel ball, and the cable connector is connected to one end of the steel cable. The teeth set at the lower end of the positioning ring are engaged with the teeth set at the bracket A. The upper end of the screw is installed with a compression spring A, and the compression spring A respectively presses against the positioning ring and the pressure cover.

[0007] The mechanical damping assembly consists of a gear, a friction shaft, a bracket B, a bracket B, a friction plate A, a disc spring, a friction plate B, a pressure block, a bracket C, a pin shaft, a bearing B, a sliding shaft, a connecting rod shaft, a shift fork, a compression spring B, a nut, and a positioning key. The middle part of the friction shaft is respectively covered with the friction plate A, the disc spring, and the friction plate B and inserted into the bracket B, and then the bracket B and the pressure block are covered. A positioning key is placed on one end of the friction shaft and pressed into the gear to clamp the retaining spring. The other end is covered with the bearing B, and the bearing B is installed in the bracket C. The middle part of the connecting rod shaft is inserted into the bracket B, one end is passed through the steel cable and the other end is screwed into the nut, and the other end is placed on the compression spring B and inserted into the sliding shaft. The sliding shaft is clamped into the shift fork, and the shift fork is fixedly connected to the pin shaft. The pin shaft can be rotatably installed on the bracket B, and the shift fork is in contact with the pressure block.

[0008] The friction plate B can move left and right on the friction shaft.

[0009] The pressing block can move left and right on the friction shaft.

[0010] The connecting rod shaft can move left and right on the bracket B.

[0011] Compared with the prior art, the utility model has obvious beneficial effects. It can be seen from the above technical scheme that the force adjustment component and the mechanical damping component are connected to the two ends of the steel cable respectively, and the middle part is wound on the guide wheel. Among them, a positioning ring is put on the outer side of the upper end of the screw rod, and the positioning pin is inserted into the rivet B for riveting, and the lower end is screwed into the bracket A, and the lower end of the screw rod is inserted into the bearing swivel and the rivet A is riveted, and the steel cable connector is connected to the bearing swivel through a steel ball, and the steel cable connector is connected to one end of the steel cable. The teeth set at the lower end of the positioning ring are engaged with the teeth set on the bracket A, and the compression spring A is installed on the upper end of the screw rod, and the compression spring A respectively resists the positioning ring and the pressure cover. Its function is to adjust the pressing force of the steel cable on the mechanical damping component. The contact part between the positioning ring and the bracket A is toothed. When adjusting the rise and fall of the screw rod, the positioning ring always slides on the positioning pin on the screw rod along the U-shaped groove on the positioning ring under the action of the spring elastic force, and always engages with the bracket to prevent loosening under vibration and other working conditions. The main function of the bearing swivel is to prevent the steel cable from rotating when the screw moves. Among them; the friction plate A, disc spring, and friction plate B are respectively put on the middle of the friction shaft and inserted into the bracket B, and then the bracket B and the pressure block are put on. A positioning key is placed on one end of the friction shaft and pressed into the gear clamp to fix the retaining ring. The other end is put on the bearing B, and the bearing B is installed in the bracket C. The middle of the connecting rod shaft is inserted into the bracket B, one end is inserted into the nut at the other end through the steel cable, and the compression spring B is placed on the other end and inserted into the sliding shaft. The sliding shaft is clamped into the fork, and the fork is fixed to the pin shaft. The pin shaft can be rotatably installed on the bracket B, and the fork is in contact with the pressure block. When the steel cable is pulled, the steel cable is fixed by the nut and drives the connecting rod shaft to slide along the positioning hole on the bracket B through the nut. The compression spring B is put on the connecting rod shaft, one end is against the bracket B, and the other end is against the end face of the fork. The connecting rod shaft near the fork is in contact with the U-shaped surface line of the fork through the sliding shaft. The shift fork rotates with the pin as the hinge point, squeezing the pressing block, friction plate B, and disc spring, and finally converts the squeezing force into friction force through the friction plate A and the friction surface on the friction shaft. The friction shaft is supported on bracket B and bracket C through bearing A. The friction shaft transfers the friction force to the gear through the positioning key. When the steel cable is tightened, the disc spring is compressed and deformed, and the friction force at the gear becomes larger; when the steel cable is loosened, the shift fork rotates outward along the pin under the action of the spring force, the squeezing force on the pressing block becomes smaller, the disc spring is deformed smaller, and the friction force at the gear becomes smaller. The mechanical friction force is convenient to adjust, and the damping force is stable and reliable. The utility model has a small size, compact structure, and modular design. By changing the length of the steel cable and the number and position of the reversing point pulley, the mechanical damping adjustment structure can be applied to various structural positions with complex routing requirements. The force adjustment component is arranged outside the throttle platform and other equipment. It can solve the problems of difficult adjustment and maintenance of the throttle platform operating force. The throttle platform operating force can be quickly adjusted. Because it is externally mounted, it is easy to maintain and has strong portability. In short, the mechanical friction force of the utility model is easy to adjust, easy to maintain, the damping force is stable and reliable, and has strong portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the force regulating assembly of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the mechanical damping component of the utility model;

[0015] Figure 4 It is an exploded view of the utility model.

[0016] Marking in the figure

[0017] 1. Force adjustment component, 2. Mechanical damping component, 3. Guide wheel, 4. Steel cable, 101. Screw, 102. Locating ring, 103. Bracket A, 104. Bearing swivel, 105. Steel cable connector, 106. Rivet A, 107. Locating pin, 108. Rivet B, 109. Compression spring A, 110. Pressure cover, 201. Gear, 202. Friction shaft, 203. Bearing A, 204. Bracket B, 205. Friction plate A, 206. Disc spring, 207. Friction plate B, 208. Pressure block, 209. Bracket C, 210. Pin shaft, 211. Bearing B, 212. Sliding shaft, 213. Connecting rod shaft, 214. Fork, 215. Compression spring B, 216. Nut, 217. Locating key. DETAILED DESCRIPTION

[0018] The specific implementation methods, structures, features and functions of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0019] The utility model discloses an external throttle platform mechanical damping adjustment mechanism, comprising a force adjustment component 1, a mechanical damping component 2, a guide wheel 3, and a steel cable 4, characterized in that: the two ends of the steel cable 4 are respectively connected to the force adjustment component 1 and the mechanical damping component 2, and the middle part is wound around the guide wheel 3. The force adjustment component 1 is composed of a screw rod 101, a positioning ring 102, a bracket A103, a bearing swivel 104, a steel cable connector 105, a rivet A106, a positioning pin 107, a rivet B108, a compression spring A109, and a pressure cover 110. The positioning ring 102 is put on the outer surface of the upper end of the screw rod 101, and the positioning pin 107 is inserted into the screw rod 101. The rivet B108 is riveted, and the lower end is screwed into the bracket A103. The lower end of the screw rod 101 is inserted into the bearing swivel 104 and penetrated into the rivet A106 for riveting. The bearing swivel 104 is connected to the steel cable connector 105 through a steel ball. The steel cable connector 105 is connected to one end of the steel cable 4. The teeth set at the lower end of the positioning ring 102 are engaged with the teeth set in the bracket A103. The upper end of the screw rod 101 is installed with a compression spring A109, which respectively presses against the positioning ring 102 and the pressure cover 110. The mechanical damping component 2 is composed of a gear 201, a friction shaft 202, a bracket B204, a bracket B204, The friction plate A205, disc spring 206, friction plate B207, pressure block 208, bracket C209, pin 210, bearing B211, sliding shaft 212, connecting rod shaft 213, shift fork 214, compression spring B215, nut 216, and positioning key 217 are composed. The middle part of the friction shaft 202 is respectively covered with friction plate A205, disc spring 206, and friction plate B207, which are inserted into the bracket B204, and then the bracket B204 and pressure block 208 are covered. The positioning key 217 is placed on one end of the friction shaft 202, pressed into the gear 201 to clamp the retaining ring, and the other end is covered with bearing B211. Bearing B211 is installed in bracket C209, the middle part of connecting rod shaft 213 passes through bracket B204, one end passes through steel cable 4 and the other end is screwed into nut 216, a compression spring B215 is placed on the other end and inserted into sliding shaft 212, sliding shaft 212 is stuck in shift fork 214, shift fork 214 is fixedly connected to pin shaft 210, pin shaft 210 is rotatably installed on bracket B204, shift fork 214 contacts with pressure block 208, friction plate B207 can move left and right on friction shaft 202, pressure block 208 can move left and right on friction shaft 202, connecting rod shaft 213 can move left and right on bracket B204.

[0020] When in use, the bracket A103, the gland 110, and the bracket B204 are respectively installed on the body structure, the gear 201 is meshed with the gear of the throttle transmission mechanism, the screw 101 is adjusted with a screwdriver, the screw 101 rotates and moves in the bracket A103, the screw 101 pulls the steel cable 4, and the steel cable 4 is fixed by the nut 216, and the nut 216 drives the connecting rod shaft 213 to slide along the positioning hole on the bracket B204. The compression spring B215 is sleeved on the connecting rod shaft 213, one end of which is against the bracket B204, and the other end is against the end face of the fork 214. The connecting rod shaft 213 near the fork 214 is in line contact with the U-shaped surface of the fork 214 through the sliding shaft 212. The shift fork 214 rotates with the pin 210 as the hinge point, squeezing the pressing block 208, the friction plate B207, and the disc spring 206, and finally converts the squeezing force into friction force through the friction plate A205 and the friction surface on the friction shaft 202. The friction shaft 202 is supported on the bracket B204 and the bracket C209 through the bearing A203. The friction shaft 202 transfers the friction force to the gear 201 through the positioning key 217. When the steel cable 4 is tightened, the disc spring 206 is compressed and deformed, and the friction force at the gear 201 increases; when the steel cable 4 is loosened, the shift fork 214 rotates outward along the pin under the action of the spring force, the squeezing force on the pressing block 208 decreases, the disc spring 206 is deformed, and the friction force at the gear 201 decreases.

[0021] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A mechanical damping adjustment mechanism for an external throttle platform, comprising a force adjustment component (1), a mechanical damping component (2), a guide wheel (3), and a steel cable (4), characterized in that; The two ends of the steel cable (4) are respectively connected to the force adjustment component (1) and the mechanical damping component (2), and the middle part is wound around the guide wheel (3).

2. The mechanical damping adjustment mechanism of the external throttle platform according to claim 1, characterized in that: The force adjustment assembly (1) is composed of a screw rod (101), a positioning ring (102), a bracket A (103), a bearing swivel (104), a steel cable connector (105), a rivet A (106), a positioning pin (107), a rivet B (108), a compression spring A (109), and a pressure cover (110). The positioning ring (102) is placed on the outer surface of the upper end of the screw rod (101), the positioning pin (107) is inserted into the rivet B (108) for riveting, and the lower end of the screw rod (101) is screwed into the bracket A (103). The lower end of (101) is inserted into the bearing swivel (104) and passed through the rivet A (106) for riveting. The bearing swivel (104) is connected to the steel cable connector (105) through a steel ball. The steel cable connector (105) is connected to one end of the steel cable (4). The teeth provided at the lower end of the positioning ring (102) are engaged with the teeth provided on the bracket A (103). The upper end of the screw rod (101) is installed with a compression spring A (109), which respectively presses against the positioning ring (102) and the pressure cover (110).

3. The mechanical damping adjustment mechanism of the external throttle platform as claimed in claim 1, characterized in that: The mechanical damping assembly (2) is composed of a gear (201), a friction shaft (202), a bracket B (204), a friction plate A (205), a disc spring (206), a friction plate B (207), a pressure block (208), a bracket C (209), a pin shaft (210), a bearing B (211), a sliding shaft (212), a connecting rod shaft (213), a shift fork (214), a compression spring B (215), a nut (216), and a positioning key (217). The friction plate A (205), the disc spring (206), and the friction plate B (207) are respectively put on the middle part of the friction shaft (202), and then inserted into the bracket B (204), and then put on the bracket B (204). A pressure block (208) is provided. A positioning key (217) is placed on one end of the friction shaft (202) and pressed into the gear (201) to clamp the retaining ring. A bearing B (211) is placed on the other end. The bearing B (211) is installed in the bracket C (209). The middle part of the connecting rod shaft (213) is inserted into the bracket B (204). One end is inserted into the steel cable (4) and the other end is screwed into the nut (216). A compression spring B (215) is placed on the other end and inserted into the sliding shaft (212). The sliding shaft (212) is clamped into the shift fork (214). The shift fork (214) is fixedly connected to the pin shaft (210). The pin shaft (210) is rotatably installed on the bracket B (204). The shift fork (214) contacts the pressure block (208).

4. The mechanical damping adjustment mechanism of the external throttle platform as claimed in claim 3, characterized in that: The friction plate B (207) can move left and right on the friction shaft (202).

5. The mechanical damping adjustment mechanism of the external throttle platform as claimed in claim 3, characterized in that: The pressing block (208) can move left and right on the friction shaft (202).

6. The mechanical damping adjustment mechanism of the external throttle platform as claimed in claim 3, characterized in that: The connecting rod shaft (213) can move left and right on the bracket B (204).

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