A special pin puller for vector adjustment mechanism of rotation test
By designing a pin puller with synchronous drive and unidirectional locking components, the synchronization and safety issues during unlocking of the vector adjustment mechanism were solved, achieving synchronous pin pull and anti-rebound, thus ensuring operational reliability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
- Filing Date
- 2026-02-10
- Publication Date
- 2026-05-29
Smart Images
Figure CN122108448A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of spacecraft ground testing and assembly equipment technology, specifically a special pin puller for a vector adjustment mechanism used in rotational testing. Background Technology
[0002] The vector control mechanism is a core component of the spacecraft propulsion system, used to precisely adjust the magnitude and direction of the thrust vector during flight. During the ground assembly and integrated testing phases of the spacecraft, especially when checking vector oscillation flexibility, servo mechanism integration, or verifying the cover plate flipping function, the primary prerequisite is to release the mechanical lock of the mechanism. To ensure structural stability under high overload conditions, a symmetrically arranged double-locking pin redundant locking design is typically employed. This involves placing a locking pin on each of the left and right sides of the mechanism's base, each subjected to a high-strength spring preload. Only when these two locking pins can be simultaneously and equally displaced to overcome the spring resistance and be completely pulled out can the frame of the vector control mechanism be safely released, allowing subsequent rotational tests to proceed.
[0003] Unlocking the vector adjustment mechanism primarily relies on manual operation. Since unlocking often involves a shift in the center of gravity or a tendency for the cover to flip, to prevent accidental damage to the engine nozzle or surrounding electronic equipment, the process specifications require one operator to use one or even both hands to support and catch the flipped cover. This necessitates a two-person cooperative approach, where two people follow instructions to pull out one side of the locking pin. Alternatively, when manpower is limited, a single person can attempt to remove the pin using a simple rope tool and applying inward force with both hands. Single-person operation is highly difficult.
[0004] Currently, in actual scientific research, production, and testing processes, whether it's a two-person operation or a single-person, two-handed operation, it's impossible to guarantee the synchronicity of the left and right pin-pulling actions at a physical level. Due to slight differences in the machining tolerances and assembly stresses of the vector adjustment mechanism, the frictional resistance of the locking pins on both sides is often inconsistent. This causes the pin on the side with less resistance to be pulled out before the other side, resulting in a slight misalignment of the mechanism frame due to force imbalance. This causes the pin on the other side to wedge tightly into the pin hole or even mechanically jam. Forcibly pulling it out can easily damage the inner wall of the high-precision pin hole. At the same time, if the operator accidentally releases their grip midway due to finger muscle fatigue, glove slippage, or improper force application posture, the existing tools lack an effective stroke self-locking and anti-rebound mechanism. The locking pin, having lost its traction, will instantly rebound at high speed, potentially injuring the operator.
[0005] Therefore, the purpose of this application is to provide a dedicated pin puller for a vector adjustment mechanism used in rotational testing, in order to overcome the shortcomings of the prior art. Summary of the Invention
[0006] To address the shortcomings of existing technologies, this application provides a dedicated pin puller for a vector adjustment mechanism used in rotational testing. This solves the problem that in the unlocking operation of existing vector adjustment mechanisms, manual pin pulling cannot guarantee the physical synchronization of the left and right sides, leading to imbalance in the force causing the mechanism frame to tilt, resulting in the pin shaft and pin hole becoming wedged and jammed, damaging the inner wall of the precision pin hole. Simultaneously, it solves the safety issues of existing operation methods requiring two people or one person applying force with both hands, making it impossible to free up hands to support the flipped cover to prevent damage to the equipment, and the lack of a self-locking anti-rebound mechanism, which can easily cause the locking pin to rebound at high speed, pinching personnel or damaging the equipment when the operator releases their grip midway.
[0007] To achieve the above objectives, this application provides the following technical solution: a special pin puller for a vector adjustment mechanism used in rotational testing, comprising a fixed support and a pin puller body disposed on the fixed support, wherein the pin puller body has a cavity inside, and the cavity integrates a synchronous drive component, a one-way locking component, and an unlocking and releasing component. The synchronous drive assembly is used to convert the opposing operating forces applied on both sides into synchronous inward movement of two moving rods. The synchronous drive assembly includes a gear rotatably disposed in the middle of the cavity. A first rack and a second rack are respectively meshed on both sides of the gear. A first actuating rod is connected to the outer end of the first rack, and a second actuating rod is connected to the outer end of the second rack. The moving rod is connected to the end of the first actuating rod and the second actuating rod away from the gear. The moving rod has a fastening hole for connecting an external traction component. The one-way locking component is used to restrict the reverse reset movement of the moving rod during the retraction process, and the unlocking and releasing component is disposed above the one-way locking component to release the locked state of the one-way locking component.
[0008] Preferably, a first rotating shaft is axially disposed through the center of the gear, and the two ends of the first rotating shaft are rotatably connected to the pin puller body through a first bearing.
[0009] Preferably, the inner wall of the cavity is slidably engaged with the first actuating rod and the second actuating rod, respectively, and the outer surfaces of the first actuating rod and the second actuating rod are provided with anti-slip strips.
[0010] Preferably, the two side walls of the pin puller body are provided with guide holes, and the moving rod passes through the guide holes and is slidably connected to the inner surface of the guide holes.
[0011] Preferably, the one-way locking assembly includes a second rotating shaft rotatably mounted in the cavity, a rotating block fixed on the second rotating shaft, and a pawl extending from one end of the rotating block, the pawl abutting against the tooth surface of the first rack.
[0012] Preferably, a fixing plate is provided on the inner bottom wall of the cavity, and a spring is connected between the fixing plate and the rotating block. The spring is used to apply a biasing force to the rotating block to press the pawl against the rack.
[0013] Preferably, the unlocking and releasing component includes a toggle piece, the surface of the puller body is provided with a fixing hole for the toggle piece to pass through, the bottom end of the toggle piece is connected to the rotating block, and the side surface of the toggle piece is provided with anti-slip protrusions.
[0014] Preferably, the fixed support has an installation hole inside, a vector adjustment mechanism cover plate is provided on the fixed support, a pin is provided on the vector adjustment mechanism cover plate, a pin hole is provided inside the pin, a locking pin is provided inside the pin hole, and a traction steel wire is fixedly connected to the side surface of the locking pin.
[0015] Preferably, the inside of the pin puller body is provided with a sliding groove in the horizontal direction, and a slider is provided at the end of the first rack and the second rack away from the gear, and the slider is limited to slide within the sliding groove.
[0016] Preferably, a plurality of magnetic adsorption plates are installed at the bottom of the fixed support, the magnetic adsorption plates being used to adsorb and fix the fixed support onto the fixed support.
[0017] This application provides a dedicated pin puller for a vector adjustment mechanism used in rotational testing. It offers the following advantages: 1. This application, by setting up a synchronous drive component, a moving rod, and a binding hole, allows the operator to simultaneously pinch the first and second actuating rods during use. Under the action of the synchronous drive component, the moving rods on both sides retract inward at the same speed and displacement, and then the traction steel wire fixed at the binding hole synchronously pulls the locking pins on both sides. The setting of the synchronous drive component, moving rod, and binding hole avoids the skew caused by the locking pin on one side being pulled out first, as well as the phenomenon of pin hole wedging and jamming, thus protecting the inner wall of the precision pin hole. At the same time, it transforms the complex two-person collaborative command operation or single-person two-hand operation into a simple one-hand pinching operation, allowing the operator to free up one hand to specifically support the vector adjustment mechanism cover plate.
[0018] 2. This application, by setting a one-way locking component, ensures that during the process of pulling the locking pin, the pawl always abuts against the first rack under the action of the spring, thereby locking the first rack and the second rack. This allows one-way movement and restricts reverse movement. If the operator releases their hand or the glove slips, the one-way locking component prevents the high-preload locking pin from unexpectedly rebounding at high speed, thus avoiding injury to the operator or equipment damage caused by impact with the fixed support. At the same time, it allows the operator to use a step-by-step force application method of pinching, locking, and resting, solving the problem of fatigue caused by continuous force application.
[0019] 3. The unlocking and release component of this application is located in the middle area between the first and second levers. At the same time, the unlocking trigger direction is opposite to the clamping movement direction of the first and second levers. The operator needs to actively reverse the movement to drive the pawl and rack to separate. The setting of the unlocking and release component ensures that the operator's hand will not accidentally touch the unlocking mechanism when squeezing the levers inward, thereby ensuring the safety of use. Attached Figure Description
[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the pin puller body structure of this application; Figure 3 This is a schematic diagram of the internal structure of the pin puller body of this application; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the synchronous drive component structure of this application; Figure 6 This is a front view of this application; Figure 7 yes Figure 6 Enlarged view of point B in the middle.
[0021] The components include: 1. Fixed support; 2. Pin puller body; 3. Cavity; 4. Synchronous drive assembly; 401. Gear; 402. First rack; 403. Second rack; 404. First actuating rod; 405. Second actuating rod; 406. First rotating shaft; 5. Traction wire; 6. Moving rod; 7. Fastening hole; 8. One-way locking assembly; 801. Second rotating shaft; 802. Rotating block; 803. Pawl; 804. Spring; 805. Fixed plate; 9. Unlocking and release assembly; 901. Actuating piece; 902. Anti-slip protrusion; 10. Fixed hole; 11. Slide groove; 12. Slider; 13. Guide hole; 14. Magnetic adsorption piece; 15. Locking pin; 16. Anti-slip strip; 17. Mounting hole; 18. Vector adjustment mechanism cover plate; 19. Pin shaft; 20. First bearing. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0023] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.
[0024] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0025] It should be understood that although the terms "second," "third," etc., may be used to describe structures in the embodiments of this application, these structures should not be limited to these terms. These terms are only used to distinguish different structures. For example, without departing from the scope of the embodiments of this application, a second component may also be referred to as a second component, and similarly, a second component may also be referred to as a second component.
[0026] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.
[0027] The optional embodiments of this application are described in detail below with reference to the accompanying drawings.
[0028] Please see the appendix Figure 1 Appendix Figure 3 Appendix Figure 4 Appendix Figure 6 With appendix Figure 7This application provides a special pin puller for a vector adjustment mechanism used in rotational testing, including a fixed support 1 and a pin puller body 2 disposed on the fixed support 1. Several magnetic adsorption plates 14 are installed at the bottom of the fixed support 1. The magnetic adsorption plates 14 are used to adsorb and fix the fixed support 1 to the fixed support 1. The pin puller body 2 has a cavity 3 inside, and the cavity 3 integrates a synchronous drive component 4, a one-way locking component 8 and an unlocking and releasing component 9.
[0029] Specifically, by setting a magnetic adsorption plate 14 at the bottom of the fixed support 1, the operator can quickly and stably adsorb the entire pin puller body 2 onto the metal fixed support 1 around the vector adjustment mechanism before performing the pin pulling operation. The strong adsorption force provided by the magnetic adsorption plate 14 can provide a stable mechanical foundation for the subsequent mechanical pin pulling action, preventing the pin puller body 2 from shifting, shaking or falling off during the force process. The magnetic adsorption plate 14 frees up one of the operator's hands, making the pin puller body 2 an independent force support point.
[0030] Please see the appendix Figure 3 Appendix Figure 4 With appendix Figure 5 The synchronous drive assembly 4 is used to convert the opposing operating forces applied on both sides into synchronous inward movement of the two moving rods 6. The synchronous drive assembly 4 includes a gear 401 rotatably disposed in the middle of the cavity 3. A first rack 402 and a second rack 403 are respectively meshed on both sides of the gear 401. A first actuating rod 404 is connected to the outer end of the first rack 402, and a second actuating rod 405 is connected to the outer end of the second rack 403. The moving rods 6 are connected to the ends of the first actuating rod 404 and the second actuating rod 405 away from the gear 401. The moving rods 6 are provided with a fastening hole 7 for connecting an external traction component.
[0031] The synchronous drive assembly 4 is the core structure for realizing the synchronous removal of the locking pins 15 on both sides. When the operator pinches the first lever 404 and the second lever 405 with one hand, regardless of whether the force applied by the operator's fingers on the left and right sides is uniform or whether there is a difference in the frictional resistance of the locking pins 15 on the left and right sides, the first rack 402 and the second rack 403 will be rigidly constrained by the central gear 401. When the rotational motion of the gear 401 drives the first rack 402 and the second rack 403 to move, the first rack 402 and the second rack 403 retract inward with the same speed and displacement, thereby driving the moving rods 6 on both sides to move synchronously.
[0032] The synchronous drive component 4 is set at the physical level to eliminate the hidden danger of asynchrony in traditional manual operation. It avoids the slight deviation of the vector adjustment mechanism frame due to the unbalanced force caused by the locking pin 15 on one side being pulled out first, and prevents the locking pin 15 on the other side from being wedged or even mechanically jammed with the pin hole, thus perfectly protecting the inner wall of the pin hole of the precision aerospace product from being strained.
[0033] To ensure the accuracy and durability of synchronous transmission, the meshing between gear 401 and the first rack 402 and the second rack 403 adopts a high-precision involute tooth profile design, reducing transmission backlash and backlash, ensuring that minute finger movements can be instantly and without damage converted into pin displacement. At the same time, the first rack 402 and the second rack 403 are made of high-strength alloy steel and have undergone surface carburizing and quenching treatment, possessing high bending strength. Even under extreme working conditions where the resistance of the locking pin 15 increases abnormally due to assembly stress, gear 401 and the first rack 402 and the second rack 403 will not bend, deform, or break teeth, ensuring operational reliability.
[0034] Please see the appendix Figure 3 With appendix Figure 6 The fixed support 1 has an installation hole 17 inside. The fixed support 1 is provided with a vector adjustment mechanism cover plate 18. The vector adjustment mechanism cover plate 18 is provided with a pin 19. The pin 19 has a pin hole inside. The pin hole has a locking pin 15 inside. The side surface of the locking pin 15 is fixedly connected with a traction steel wire 5.
[0035] Specifically, in actual working scenarios, the traction wire 5 is the key link connecting the device of this application with the spacecraft product. One end of the traction wire 5 passes through the bolt hole 7 on the moving rod 6 and is firmly fixed, while the other end of the traction wire 5 is connected to the locking pin 15. When the moving rod 6 retracts inward, the pulling force is accurately transmitted to the locking pin 15 through the traction wire 5. The traction wire 5 has a flexible feature, which allows force to be transmitted within a certain angle range, adapting to the installation position deviation of different models of vector adjustment mechanisms, thereby ensuring a smooth transmission path of the pulling force.
[0036] The traction wire 5 is made of multi-strand aerospace-grade stainless steel wire rope, which has high tensile strength and fatigue resistance, and can withstand pull loads far exceeding the preload of the locking pin 15 without breaking. At the same time, the surface of the traction wire 5 is coated with Teflon lubricant, which reduces the frictional resistance with surrounding components when passing through complex and narrow spaces, and ensures the effective transmission efficiency of the pulling force.
[0037] Please see the appendix Figure 3 Appendix Figure 4 With appendix Figure 5A first rotating shaft 406 is axially inserted through the center of the gear 401. The two ends of the first rotating shaft 406 are rotatably connected to the pin puller body 2 through the first bearing 20. The inner wall of the cavity 3 is slidably engaged with the first actuating rod 404 and the second actuating rod 405 respectively. Anti-slip strips 16 are provided on the outer surfaces of the first actuating rod 404 and the second actuating rod 405. Guide holes 13 are provided on both side walls of the pin puller body 2. The moving rod 6 passes through the guide holes 13 and is slidably connected to the inner surface of the guide holes 13. A sliding groove 11 is provided in the interior of the pin puller body 2 along the horizontal direction. A slider 12 is provided at the end of the first rack 402 and the second rack 403 away from the gear 401. The slider 12 is limited to slide within the sliding groove 11.
[0038] Specifically, to ensure the smooth transmission of the synchronous drive assembly 4, the first rotating shaft 406, in conjunction with the first bearing 20, supports the gear 401, reducing the rotational friction resistance of the first rotating shaft 406. This makes the operation smoother and less strenuous when the operator engages the first actuating lever 404 and the second actuating lever 405. At the same time, the guide hole 13, the slide groove 11, and the slider 12 form a double guide and limit structure, ensuring that the first rack 402, the second rack 403, and the moving rod 6 move strictly along a straight trajectory, preventing swaying or jamming during movement. Furthermore, the anti-slip strips 16 on the surfaces of the first actuating lever 404 and the second actuating lever 405 increase the friction of the finger contact surface, preventing slippage when operating with gloves or when hands are sweaty, further improving the stability of operation.
[0039] Please see the appendix Figure 4 The one-way locking assembly 8 is used to restrict the reverse reset movement of the moving rod 6 during the retraction process. The one-way locking assembly 8 includes a second rotating shaft 801 rotatably mounted in the cavity 3. A rotating block 802 is fixed on the second rotating shaft 801. One end of the rotating block 802 extends to form a pawl 803. The pawl 803 abuts against the tooth surface of the first rack 402. A fixing plate 805 is provided on the inner bottom wall of the cavity 3. A spring 804 is connected between the fixing plate 805 and the rotating block 802. The spring 804 is used to apply a biasing force to the rotating block 802 to press the pawl 803 against the rack.
[0040] Specifically, the one-way locking assembly 8 utilizes the one-way meshing principle of gear 401 and pawl 803. The front end of pawl 803 is designed with a guide slope and a stop vertical surface. When the first rack 402 moves inward to pull the pin, the tooth tip of the first rack 402 slides over the guide slope of pawl 803. Under the action of spring 804, pawl 803 generates elastic bounce, allowing the first rack 402 to pass smoothly. When the operator's fingers are fatigued, gloves slip, or the first lever 404 tends to rebound outward due to midway, the tooth side of the first rack 402 will immediately lock against the stop vertical surface of pawl 803, forming a rigid mechanical self-locking mechanism.
[0041] The one-way locking component 8 prevents the locking pin 15 from rebounding at high speed instantly under the action of the high-strength return spring 804 after losing traction, thus avoiding serious safety accidents such as the metal locking pin 15 violently hitting the fixed support 1 or pinching the operator's fingers. At the same time, it allows the operator to use a step-by-step force application method of pinching, locking, resting, and pinching again, which reduces the fatigue intensity of continuous operation.
[0042] Please see the appendix Figure 2 With appendix Figure 4 The unlocking and releasing component 9 is located above the one-way locking component 8 and is used to release the locking state of the one-way locking component 8. The unlocking and releasing component 9 includes a toggle piece 901. The surface of the puller body 2 is provided with a fixing hole 10 for the toggle piece 901 to pass through. The bottom end of the toggle piece 901 is connected to the rotating block 802. The side surface of the toggle piece 901 is provided with anti-slip protrusions 902.
[0043] Specifically, the layout of the unlocking and releasing component 9 takes operational safety into consideration. The toggle piece 901 is located in the middle area between the first toggle lever 404 and the second toggle lever 405, and the unlocking trigger direction is designed to be opposite to the clamping movement direction of the first toggle lever 404 and the second toggle lever 405. When the operator squeezes the toggle lever inward with force, the hand movement naturally moves away from the trigger direction of the toggle piece 901, physically eliminating the possibility of accidental activation.
[0044] When the tool needs to be reset, the operator needs to actively reverse the toggle 901 to drive the rotating block 802 to rotate around the second rotating shaft 801. This overcomes the resistance of the spring 804 and forces the pawl 803 to separate from the first rack 402. At this time, the first rack 402 and the second rack 403 lose their locking restraint. The operator can then push the first toggle lever 404 or the second toggle lever 405. Under the action of the gear 401, the moving rods 6 on the left and right sides can be reset, thus realizing the rapid reset of the synchronous drive assembly 4.
[0045] Working principle: When using this device, place the pin puller body 2 on the center position of the fixed support 1, and pass the two sets of traction steel wires 5 through the binding hole 7 in sequence. The operator holds the second actuating rod 405 and the first actuating rod 404 with one hand, so that the first actuating rod 404 and the second actuating rod 405 move towards the center. Under the action of the gear 401, the first rack 402 and the second rack 403, the first actuating rod 404 and the second actuating rod 405 can be guaranteed to move inward at the same speed and displacement, so as to pull the locking pin 15 synchronously. During the movement of the first rack 402 and the second rack 403, the pawl 803, under the action of the rotating block 802, the second rotating shaft 801 and the spring 804, can prevent the first rack 402 from moving in the opposite direction. Furthermore, under the action of the gear 401, it can simultaneously prevent the second rack 403 from moving in the opposite direction. When the operator releases their hand or the glove slips, the pawl 803 is designed to prevent the high-preload locking pin 15 from unexpectedly rebounding at high speed, thus avoiding injury to the operator or equipment damage caused by impact with the fixed support 1. At the same time, it allows the operator to use a step-by-step force application method of pinching, locking and resting, which solves the problem of fatigue caused by continuous force application. When the operation requires unlocking the first rack 402 and the second rack 403, the toggle piece 901 is moved to push the first toggle lever 404 or the second toggle lever 405 in the opposite direction. Under the action of the gear 401, the moving levers 6 on the left and right sides can be reset.
[0046] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems or apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.
[0047] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A special pin puller for a vector adjustment mechanism used in rotational testing, characterized in that, It includes a fixed support (1) and a pin puller body (2) disposed on the fixed support (1). The pin puller body (2) has a cavity (3) inside. The cavity (3) integrates a synchronous drive component (4), a one-way locking component (8) and an unlocking and releasing component (9). The synchronous drive assembly (4) is used to convert the opposing operating forces applied on both sides into synchronous inward movement of two moving rods (6). The synchronous drive assembly (4) includes a gear (401) rotatably disposed in the middle of the cavity (3). A first rack (402) and a second rack (403) are respectively meshed on both sides of the gear (401). A first actuating rod (404) is connected to the outer end of the first rack (402), and a second actuating rod (405) is connected to the outer end of the second rack (403). The moving rods (6) are connected to the ends of the first actuating rod (404) and the second actuating rod (405) away from the gear (401). The moving rods (6) are provided with a fastening hole (7) for connecting an external traction component. The one-way locking component (8) is used to restrict the reverse reset movement of the moving rod (6) during the retraction process of the moving rod (6). The unlocking and releasing component (9) is disposed above the one-way locking component (8) and is used to release the locked state of the one-way locking component (8).
2. The special pin puller for a vector adjustment mechanism used in rotational testing according to claim 1, characterized in that, The gear (401) has a first rotating shaft (406) axially extending through its center. The two ends of the first rotating shaft (406) are rotatably connected to the pin puller body (2) through a first bearing (20).
3. A special pin puller for a vector adjustment mechanism used in rotational testing according to claim 1, characterized in that, The inner wall of the cavity (3) is slidably engaged with the first actuating rod (404) and the second actuating rod (405), respectively. The outer surfaces of the first actuating rod (404) and the second actuating rod (405) are provided with anti-slip strips (16).
4. A special pin puller for a vector adjustment mechanism used in rotational testing according to claim 1, characterized in that, The two side walls of the pin puller body (2) are provided with guide holes (13), and the moving rod (6) passes through the guide holes (13) and is slidably connected to the inner surface of the guide holes (13).
5. A special pin puller for a vector adjustment mechanism used in rotational testing according to claim 1, characterized in that, The one-way locking assembly (8) includes a second rotating shaft (801) rotatably mounted in the cavity (3), a rotating block (802) fixed on the second rotating shaft (801), and a pawl (803) extending from one end of the rotating block (802), the pawl (803) abutting against the tooth surface of the first rack (402).
6. A special pin puller for a vector adjustment mechanism used in rotational testing according to claim 5, characterized in that, The inner bottom wall of the cavity (3) is provided with a fixing plate (805), and a spring (804) is connected between the fixing plate (805) and the rotating block (802). The spring (804) is used to apply a biasing force to the rotating block (802) to press the pawl (803) against the rack.
7. A special pin puller for a vector adjustment mechanism used in rotational testing according to claim 5, characterized in that, The unlocking and releasing assembly (9) includes a toggle piece (901). The surface of the pull pin body (2) is provided with a fixing hole (10) through which the toggle piece (901) passes. The bottom end of the toggle piece (901) is connected to the rotating block (802). The side surface of the toggle piece (901) is provided with anti-slip protrusions (902).
8. A special pin puller for a vector adjustment mechanism used in rotational testing according to claim 1, characterized in that, The fixed support (1) has an installation hole (17) inside. The fixed support (1) is provided with a vector adjustment mechanism cover plate (18). The vector adjustment mechanism cover plate (18) is provided with a pin (19). The pin (19) has a pin hole inside. The pin hole has a locking pin (15) inside. The side surface of the locking pin (15) is fixedly connected with a traction steel wire (5).
9. A special pin puller for a vector adjustment mechanism used in rotational testing according to claim 1, characterized in that, The body (2) of the pin puller has a horizontal groove (11) inside. The first rack (402) and the second rack (403) are each provided with a slider (12) at the end away from the gear (401). The slider (12) slides within the groove (11).
10. A special pin puller for a vector adjustment mechanism used in rotational testing according to claim 1, characterized in that, The bottom of the fixed support (1) is equipped with several magnetic adsorption plates (14), which are used to adsorb and fix the fixed support (1) onto the fixed support (1).