Clamping mechanism for automatic core insertion of combustion chamber

Abstract

The invention relates to a clamping mechanism for automatic core insertion of a combustion chamber. The mounting base is connected to the base and can move relative to the base in the first linear direction; the clamping jaw is connected to the mounting base and used for grabbing the core rod with the axis parallel to the first straight line direction; and the protection device is arranged between the base and the mounting seat, and is used for limiting the movement of the mounting seat relative to the base when the pressure between the mounting seat and the base in the first linear direction does not exceed a set value, and releasing the limitation when the pressure exceeds the set value. The pressure between the core rod and the combustion chamber can be prevented from exceeding a safety value to ignite the explosive slurry, safety accidents are avoided, and the safety of automatic core inserting work is improved.

Description

Technical Field

[0001] The invention relates to the field of solid propellant charging technology, and in particular to a clamping mechanism for automatic core insertion in a combustion chamber. Background Art

[0002] The core insertion process is a key step in the traditional thin-layer solid propellant charging process, which involves inserting the core rod into the combustion chamber filled with propellant slurry. Currently, this process mainly relies on manual work to complete the core insertion work, which is highly dangerous and difficult to ensure production efficiency through manual operation.

[0003] In order to improve operational safety and automate the core insertion process, a device that can automatically perform core insertion has been developed. After the device grabs the core rod through the clamping mechanism, it controls the translation and lifting of the clamping mechanism to complete the action of inserting the core rod into the combustion chamber.

[0004] In actual production, it is impossible to guarantee that all combustion chambers are qualified. When the core rod is inserted into an unqualified combustion chamber, the core rod may not be inserted into place but the end may contact the combustion chamber. At this time, the clamping mechanism that clamps the core rod continues to descend, which will increase the contact pressure between the core rod and the combustion chamber. Due to the flammable and explosive nature of the slurry, excessive contact pressure between the core rod and the combustion chamber shell may ignite the slurry, thereby causing a safety accident and posing a safety risk. Summary of the invention

[0005] Based on the above description, the present invention provides a clamping mechanism for automatic core insertion in a combustion chamber to solve the problem in the related art that the large contact pressure between the core rod and the combustion chamber ignites the slurry and causes a safety accident.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: The present application provides a clamping mechanism for automatic core insertion in a combustion chamber, and the technical solution adopted is as follows: A clamping mechanism for automatic core insertion in a combustion chamber, comprising: Base; A mounting base connected to the base, wherein the mounting base can move relative to the base along a first straight line direction; A clamping jaw connected to the mounting seat, the clamping jaw being used to grasp a core rod whose axis is parallel to the first straight line direction; A protective device is provided between the base and the mounting seat, and is used to limit the movement of the mounting seat relative to the base when the pressure along a first straight line direction between the mounting seat and the base does not exceed a set value, and to release the restriction when the pressure exceeds the set value.

[0007] Preferably, the moving path of the mounting seat along the first straight line direction includes a working position and a protection position, the mounting seat can move between the working position and the protection position, and when the mounting seat is located at the working position, it is restricted from moving in a direction away from the protection position, and the base is provided with a reset drive member for driving the mounting seat to move from the protection position to the working position.

[0008] Preferably, an elastic member is provided between the mounting seat and the base, and the mounting seat overcomes the elastic force of the elastic member when moving from the protection position to the working position. The reset drive member is used to overcome the elastic force of the elastic member to drive the mounting seat to move from the protection position to the working position.

[0009] Preferably, the protection device includes a rack, a first gear, a movable locking member and a power member, the rack is connected to the mounting seat and arranged along a first straight line direction, the first gear is rotatably connected to the base and meshes with the rack, the movable locking member is connected to the base and can move relative to the base along the axis of the first gear, the movable locking member can move to abut against the end face of the first gear, and is suitable for limiting the rotation of the first gear relative to the base through the friction force between the movable locking member and the end face of the first gear, and the power member is used to drive the movable locking member to move to contact or disengage with the end face of the first gear, and is used to keep the movable locking member in a state of abutting against the end face of the first gear.

[0010] Preferably, a pressure sensor is provided between the clamping jaw and the mounting seat, and the pressure sensor is used to detect the pressure between the clamping jaw and the mounting seat along the first straight line direction.

[0011] Preferably, the pressure sensor and the power member are both connected to an external control system, which is suitable for controlling the operation of the power member through the external control system when the pressure sensor detects that the pressure exceeds a set value, so as to drive the movable locking member to move from a state of contact with the first gear end face to a state of discontinuity with the first gear end face.

[0012] Preferably, a friction plate is provided on the contact surface between the first gear and the movable locking member.

[0013] Preferably, a damping device is provided between the base and the mounting seat, and the damping device is used to provide a damping force when the mounting seat moves from the working position to the protection position.

[0014] Preferably, the damping device includes a rotary damper connected to the base, the axis of the rotary damper's rotating shaft is perpendicular to the first straight line direction, and a second gear meshing with the rack is coaxially sleeved on the rotating shaft, and the second gear is connected to the rotating shaft through a one-way bearing.

[0015] Compared with the prior art, the technical solution of the present application has at least the following beneficial technical effects: 1. In actual operation, the present application connects the base to the drive system, and makes the first straight line direction vertical. The mandrel with the axis vertically grasped by the clamp, and the base is controlled to translate and lift by the drive system to translate and lift the mounting seat and the clamp, thereby completing the core insertion action. The mounting seat can move relative to the base and the protective device is set. When the core is inserted, when the mandrel contacts the combustion chamber, the pressure between the mandrel and the combustion chamber is transmitted to the base through the clamp and the mounting seat, thereby increasing the pressure between the base and the mounting seat. When the pressure value is within the safe range, that is, when it does not exceed the set value, the protective device limits the movement of the mounting seat relative to the base to ensure that the descending stroke of the clamp reaches the set stroke and the insertion depth of the mandrel reaches the required depth. When the pressure between the mounting seat and the base exceeds the safety range, that is, when the pressure between the core rod and the combustion chamber exceeds the set value, the protection device releases the restriction on the movement of the mounting seat. At this time, when the base continues to descend, the mounting seat moves relative to the base under the obstruction of the combustion chamber, and the pressure between the core rod and the combustion chamber will not continue to increase, thereby preventing the pressure between the core rod and the combustion chamber from exceeding the safety value and igniting the slurry, avoiding the occurrence of safety accidents, and improving the safety of automatic core insertion.

[0016] 2. The present application sets a reset drive component. During the design, the mounting seat is located in the working position to perform normal core insertion work. When an unqualified combustion chamber causes the mounting seat to move relative to the base, the mounting seat moves to the protection position. At this time, the core insertion action in the combustion chamber is completed, the clamp releases the core rod, and after the base rises, the mounting seat is driven by the reset drive component to move back to the working position to perform the core insertion work of the next combustion chamber. There is no need to stop the line for inspection and reset, which can ensure the continuous progress of the core insertion work of the batch combustion chamber to improve production efficiency.

[0017] 3. The present application arranges an elastic member between the base and the mounting seat. When the mounting seat is in the working position, the elastic member is in a deformed state. At this time, when the protective device releases the restriction on the movement of the mounting seat, the elastic force of the elastic member drives the mounting seat to move quickly to the protection position, so that the core rod can quickly break away from the state of contact with the combustion chamber.

[0018] 4. The present application realizes the function of limiting the movement of the mounting seat and releasing the restriction by cooperating with the rack, the first gear, the movable locking member and the power member, and has the advantages of simple structure and good stability. By setting a pressure sensor between the clamp and the mounting seat, the contact pressure between the core rod and the combustion chamber can be monitored in real time. According to the detection data of the pressure sensor, it can be judged whether the contact pressure between the core rod and the combustion chamber meets the requirements when the core rod is inserted into each normal combustion chamber. When the pressure exceeds the set value, the power member is controlled to operate through an external control system, and the movable locking member is driven to move from the state of contact with the end face of the first gear to the state of discontinuity with the end face of the first gear, so as to realize the automatic operation of the protective device.

[0019] 5. This application sets a damping device. When the protective device releases the restriction on the movement of the mounting seat and the mounting seat moves from the working position to the protective position, the damping device provides a damping force to ensure the smooth movement of the mounting seat, and prevent the rapid movement of the mounting seat from causing the core rod to disturb the slurry too much and overflow the combustion chamber. When the mounting seat is driven by the reset drive to move from the protective position to the working position, the damping device does not work, so that the mounting seat can be quickly reset to the working position to perform the core insertion work of the next combustion chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a clamping mechanism for automatic core insertion in a combustion chamber provided by an embodiment of the present invention; Figure 2 A schematic side view of a clamping mechanism for automatic core insertion in a combustion chamber provided by an embodiment of the present invention; Figure 3 for Figure 1 A magnified schematic diagram of the middle A area; Figure 4 A schematic diagram of the connection structure of the mounting shaft and the movable locking member in the clamping mechanism for the automatic core insertion of the combustion chamber provided by an embodiment of the present invention; Figure 5 A schematic diagram of the working position and the protection position of a mounting seat in a clamping mechanism for automatic core insertion in a combustion chamber provided in an embodiment of the present invention.

[0021] Description of reference numerals: 1. Base; 2. Mounting seat; 3. Clamp; 4. Protective device; 41. Rack; 42. First gear; 43. Movable locking member; 431. Limit block; 44. Power member; 45. Mounting shaft; 451. Limit groove; 5. Pressure sensor; 6. Pneumatic displacement compensation unit; 7. Reset drive member; 8. Block block; 9. Elastic member; 10. Support block; 11. Damping device; 111. Rotary damper; 112. Second gear. DETAILED DESCRIPTION

[0022] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0024] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0025] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0026] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0027] Reference Figure 1-5As shown, the embodiment of the present application provides a clamping mechanism for automatic core insertion in a combustion chamber, comprising a base 1, a mounting seat 2, a clamping jaw 3 and a protective device 4. The mounting seat 2 is connected to the base 1 and can move relative to the base 1 along a first straight line direction. The clamping jaw 3 is connected to the mounting seat 2 and is used to grasp a core rod whose axis is parallel to the first straight line direction. The protective device 4 is arranged between the base 1 and the mounting seat 2. The protective device 4 is used to limit the movement of the mounting seat 2 relative to the base 1 when the pressure between the mounting seat 2 and the base 1 along the first straight line direction does not exceed a set value, and to release the restriction when the pressure exceeds the set value. In this embodiment, the first straight line direction is used for illustration vertically.

[0028] In actual operation, the base 1 is connected to the drive system, and the first straight line direction is made vertical. The mandrel with the axis vertically in the state is grasped by the clamp 3. The base 1 is controlled to translate and lift by the drive system to translate and lift the mounting seat 2 and the clamp 3, thereby completing the core insertion action. The mounting seat 2 can move relative to the base 1 and the protective device 4 is set. When the core is inserted, when the mandrel contacts the combustion chamber, the pressure between the mandrel and the combustion chamber is transmitted to the base 1 through the clamp 3 and the mounting seat 2, thereby increasing the pressure between the base 1 and the mounting seat 2. When the pressure value is within the safe range, that is, when it does not exceed the set value, the protective device 4 limits the movement of the mounting seat 2 relative to the base 1 to ensure that the descending stroke of the clamp 3 reaches the set stroke and the insertion depth of the mandrel reaches the requirement. When the pressure between the mounting seat 2 and the base 1 exceeds the safe range, that is, when the pressure between the core rod and the combustion chamber exceeds the set value, the protection device 4 releases the restriction on the movement of the mounting seat 2. At this time, when the base 1 continues to descend, the mounting seat 2 moves relative to the base 1 under the obstruction of the combustion chamber, and the pressure between the core rod and the combustion chamber will not continue to increase, thereby preventing the pressure between the core rod and the combustion chamber from exceeding the safe value and igniting the slurry, avoiding the occurrence of safety accidents, and improving the safety of automatic core insertion.

[0029] Reference Figure 2 As shown, the mounting seat 2 is mounted on the base 1 through the cooperation of a linear guide rail and a slider, the linear guide rail is mounted on the base 1 and extends along a first straight line direction, and the mounting seat 2 is fixed to the slider.

[0030] Reference Figure 1-3As shown, the protection device 4 includes a rack 41, a first gear 42, a movable locking member 43 and a power member 44. The rack 41 is connected to the mounting seat 2 and arranged along the first straight line direction. The first gear 42 is rotatably connected to the base 1 and meshes with the rack 41. The movable locking member 43 is connected to the base 1 and can move relative to the base 1 along the axial direction of the first gear 42. The movable locking member 43 can move to abut against the end face of the first gear 42, and is suitable for limiting the rotation of the first gear 42 relative to the base 1 through the friction force between the movable locking member 43 and the end face of the first gear 42. The power member 44 is used to drive the movable locking member 43 to move to contact or disengage with the end face of the first gear 42, and is used to keep the movable locking member 43 in a state of abutting against the end face of the first gear 42.

[0031] Reference Figure 2-3 As shown, specifically, the rack 41 is fixed to the mounting seat 2, the first gear 42 is installed on the base 1 through the mounting shaft 45, the axis of the mounting shaft 45 is perpendicular to the first straight line direction and one end is fixed to the base 1, and the first gear 42 is coaxially sleeved outside the mounting shaft 45 and rotatably connected to the mounting shaft 45 through a bearing. Figure 4 As shown, the movable locking member 43 is annular and coaxially sleeved outside the mounting shaft 45. Figure 4 As shown, a limiting groove 451 is provided in the axial direction on the outer wall of the installation shaft 45, and a limiting block 431 embedded in the limiting groove 451 is connected to the inner side of the movable locking member 43, so that the movable locking member 43 can be limited to rotate relative to the installation shaft 45 through the cooperation of the limiting block 431 and the limiting groove 451, and the movable locking member 43 can be moved relative to the base 1 along the axial direction of the first gear 42. When the movable locking member 43 moves to abut against the end surface of the first gear 42, the first gear 42 is limited to rotate relative to the base 1 by friction force, thereby limiting the movement of the mounting seat 2 relative to the base 1. In order to provide sufficient friction force, a friction plate is provided on the contact surface where the first gear 42 and the movable locking member 43 contact each other.

[0032] Reference Figure 2-3 As shown, the power member 44 can be an electric push cylinder, which is fixed on the base 1 and the push rod is fixed to the movable locking member 43 to achieve the purpose of driving the movable locking member 43 to move and keep the movable locking member 43 in a state of abutting against the end surface of the first gear 42.

[0033] Reference Figure 1-2 As shown, further, a pressure sensor 5 is provided between the clamping jaw 3 and the mounting seat 2, and the pressure sensor 5 is used to detect the pressure between the clamping jaw 3 and the mounting seat 2 along the first straight line direction. In addition, the pressure sensor 5 and the power member 44 are both connected to an external control system, and are suitable for controlling the power member 44 to operate through the external control system when the pressure detected by the pressure sensor 5 exceeds the set value, so as to drive the movable locking member 43 to move from the state of contacting with the end surface of the first gear 42 to the state of disengaging from the end surface of the first gear 42.

[0034] Through the above arrangement, the pressure between the clamp 3 and the base 1, that is, the pressure between the core rod and the combustion chamber and the pressure between the base 1 and the mounting seat 2, can be monitored in real time through the pressure sensor 5. The external control system can determine whether the contact pressure between the core rod and the combustion chamber meets the requirements when the core rod is inserted into each normal combustion chamber according to the detection data of the pressure sensor 5. When the pressure exceeds the set value, the external control system controls the operation of the power member 44 to drive the movable locking member 43 from the state of contact with the end face of the first gear 42 to the state of discontinuity with the end face of the first gear 42, so as to realize the automatic operation of the protection device 4.

[0035] Reference Figure 1-2 As shown, specifically, the clamping jaw 3 is connected to the mounting seat 2 through the pressure sensor 5, so as to detect the pressure between the clamping jaw 3 and the mounting seat 2 through the pressure sensor 5. In this embodiment, the clamping jaw 3 and the pressure sensor 5 are connected through the pneumatic displacement compensation unit 6, so as to compensate for the slight positioning deviation between the core rod and the combustion chamber during the core insertion process through the pneumatic displacement compensation unit 6, so as to ensure that the core rod is accurately inserted into the combustion chamber.

[0036] Reference Figure 2 and Figure 5 As shown, further, the moving path of the mounting seat 2 along the first straight line direction includes a working position and a protective position, the mounting seat 2 can move between the working position and the protective position, and when the mounting seat 2 is in the working position, it is restricted from moving in the direction away from the protective position, and a reset drive member 7 is provided on the base 1 for driving the mounting seat 2 to move from the protective position to the working position.

[0037] Through this arrangement, the mounting seat 2 is located in the working position to perform normal core insertion work. When an unqualified combustion chamber causes the mounting seat 2 to move relative to the base 1, the mounting seat 2 moves to the protection position. At this time, the core insertion action in the combustion chamber is completed, the clamping jaws 3 release the core rod, and after the base 1 rises, the mounting seat 2 is driven to move back to the working position through the reset drive member 7 to carry out the core insertion work of the next combustion chamber. There is no need to stop the line for inspection and reset, which can ensure the continuous progress of the core insertion work of the batch combustion chamber to improve production efficiency.

[0038] Reference Figure 2 and Figure 5 As shown, specifically, the working position is located below the protection position, and a blocking block 8 is provided on the base 1 near the lower end of the linear guide rail. When the mounting seat 2 moves to the working position, it contacts the blocking block 8 to limit the mounting seat 2 from continuing to move downward through the blocking block 8, thereby achieving precise positioning of the mounting seat 2.

[0039] The reset drive member 7 can also adopt an electric push cylinder, in which case the axis of the push rod is parallel to the first straight line direction, and the reset drive member 7 is located on the base 1 near the top of the linear guide rail, so as to drive the mounting seat 2 from the protection position to the working position through the electric push cylinder, and realize the precise reset of the mounting seat 2 through the blocking block 8.

[0040] Reference Figure 2 As shown, further, in order to quickly separate the mandrel from the state of contact with the combustion chamber when the pressure between the mandrel and the combustion chamber exceeds the set value, an elastic member 9 is provided between the mounting seat 2 and the base 1. When the mounting seat 2 moves from the protection position to the working position, the elastic force of the elastic member 9 is overcome, and the reset driving member 7 overcomes the elastic force of the elastic member 9 to drive the mounting seat 2 to move from the protection position to the working position. Through this arrangement, when the mounting seat 2 is in the working position, the elastic member 9 is in a deformed state. At this time, when the protection device 4 releases the restriction on the movement of the mounting seat 2, the elastic force of the elastic member 9 drives the mounting seat 2 to move quickly to the protection position, so that the mandrel can quickly separate from the state of contact with the combustion chamber.

[0041] In this embodiment, the elastic member 9 is a spring, and a support block 10 is provided on the base 1 below the working position. The support block 10 is provided with a mounting hole for the spring to be embedded. The axis of the spring is parallel to the first straight line direction and is embedded in the mounting hole, and the two ends of the spring are respectively abutted against the support block 10 and the mounting seat 2.

[0042] Reference Figure 1-2 As shown, further, in order to prevent the rapid movement of the mounting seat 2 from causing the core rod to disturb the medicine slurry too much and overflow the combustion chamber, a damping device 11 is provided between the base 1 and the mounting seat 2, and the damping device 11 is used to provide a damping force when the mounting seat 2 moves from the working position to the protection position. When the protection device 4 releases the restriction on the movement of the mounting seat 2 and the mounting seat 2 moves from the working position to the protection position, the damping force is provided by the damping device 11 to enable the mounting seat 2 to move smoothly, thereby preventing the rapid movement of the mounting seat 2 from causing the core rod to disturb the medicine slurry too much and overflow the combustion chamber. When the mounting seat 2 is driven to move from the protection position to the working position by the reset drive 7, the damping device 11 does not work, so that the mounting seat 2 can be quickly reset to the working position to perform the core insertion work of the next combustion chamber.

[0043] Reference Figure 2As shown, the damping device 11 includes a rotary damper 111 connected to the base 1, the axis of the rotary shaft of the rotary damper 111 is perpendicular to the first straight line direction, and a second gear 112 meshing with the rack 41 is coaxially sleeved on the rotary shaft, and the second gear 112 is connected to the rotary shaft through a one-way bearing. Specifically, the rotary damper 111 body is fixed on the base 1, and the lower rotary shaft is parallel to the axis of the mounting shaft 45, the second gear 112 and the first gear 42 are meshed with the rack 41 at the same time, and the second gear 112 is connected to the rotary shaft of the rotary damper 111 through a one-way bearing. When the mounting seat 2 moves from the working position to the protection position, the power is transmitted to the second gear 112 through the rack 41, and the second gear 112 transmits the power to the rotary shaft of the rotary damper 111 through the one-way bearing, so that the rotary damper 111 generates a damping force, and when the mounting seat 2 moves from the protection position to the working position, the one-way bearing does not work, and the rotary damper 111 does not generate a damping force.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping mechanism for automatic core insertion in a combustion chamber, characterized in that: include: Base (1); A mounting seat (2) connected to the base (1), wherein the mounting seat (2) can move relative to the base (1) along a first straight line direction; A clamping jaw (3) connected to the mounting seat (2), the clamping jaw (3) being used to grasp a core rod whose axis is parallel to the first straight line direction; A protective device (4) is provided between the base (1) and the mounting seat (2), the protective device (4) being used to restrict the movement of the mounting seat (2) relative to the base (1) when the pressure along a first straight line direction between the mounting seat (2) and the base (1) does not exceed a set value, and to release the restriction when the pressure exceeds the set value.

2. The clamping mechanism for automatic core insertion in the combustion chamber according to claim 1, characterized in that: The movement path of the mounting seat (2) along the first straight line direction includes a working position and a protection position; the mounting seat (2) can move between the working position and the protection position, and when the mounting seat (2) is located at the working position, it is restricted from moving in a direction away from the protection position; and a reset driving member (7) for driving the mounting seat (2) to move from the protection position to the working position is provided on the base (1).

3. The clamping mechanism for automatic core insertion in the combustion chamber according to claim 2, characterized in that: An elastic member (9) is provided between the mounting seat (2) and the base (1); the mounting seat (2) overcomes the elastic force of the elastic member (9) when moving from the protection position to the working position; and the reset drive member (7) is used to overcome the elastic force of the elastic member (9) to drive the mounting seat (2) to move from the protection position to the working position.

4. The clamping mechanism for automatic core insertion in the combustion chamber according to claim 2, characterized in that: The protection device (4) comprises a rack (41), a first gear (42), a movable locking member (43) and a power member (44); the rack (41) is connected to the mounting seat (2) and arranged along a first straight line direction; the first gear (42) is rotatably connected to the base (1) and meshes with the rack (41); the movable locking member (43) is connected to the base (1) and can move relative to the base (1) along the axial direction of the first gear (42); the movable locking member (43) can move to abut against the end surface of the first gear (42) and is suitable for limiting the rotation of the first gear (42) relative to the base (1) through the friction force between the movable locking member (43) and the end surface of the first gear (42); the power member (44) is used to drive the movable locking member (43) to move to contact or disengage with the end surface of the first gear (42) and to keep the movable locking member (43) in a state of abutting against the end surface of the first gear (42).

5. The clamping mechanism for automatic core insertion in the combustion chamber according to claim 4, characterized in that: A pressure sensor (5) is provided between the clamping jaw (3) and the mounting seat (2), and the pressure sensor (5) is used to detect the pressure between the clamping jaw (3) and the mounting seat (2) along a first straight line direction.

6. The clamping mechanism for automatic core insertion in the combustion chamber according to claim 5, characterized in that: The pressure sensor (5) and the power member (44) are both connected to an external control system and are adapted to control the operation of the power member (44) through the external control system when the pressure detected by the pressure sensor (5) exceeds a set value, so as to drive the movable locking member (43) to move from a state of contact with the end face of the first gear (42) to a state of discontinuity with the end face of the first gear (42).

7. The clamping mechanism for automatic core insertion in the combustion chamber according to claim 4, characterized in that: A friction plate is provided on the contact surface where the first gear (42) and the movable locking member (43) contact each other.

8. The clamping mechanism for automatic core insertion in the combustion chamber according to claim 4, characterized in that: A damping device (11) is provided between the base (1) and the mounting seat (2), and the damping device (11) is used to provide a damping force when the mounting seat (2) moves from the working position to the protection position.

9. The clamping mechanism for automatic core insertion in the combustion chamber according to claim 8, characterized in that: The damping device (11) comprises a rotary damper (111) connected to the base (1); the axis of the rotary shaft of the rotary damper (111) is perpendicular to the first straight line direction; a second gear (112) meshing with the rack (41) is coaxially sleeved on the rotary shaft; the second gear (112) is connected to the rotary shaft via a one-way bearing.

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