Elastic body access device

Abstract

The application discloses a projectile in-out device, and relates to the technical field of projectile charging. The in-out assembly of the device is installed on the ground of a charging area, the front end of the in-out assembly is outside the charging area (a connecting station), and the rear end of the in-out assembly is inside the charging area (a charging station). The connecting and fixing assembly is installed on the in-out assembly. The trolley assembly can be separately and freely moved, and can also be connected and fixed with the connecting and fixing assembly. The device realizes automatic identification, docking and in-out of projectiles in a charging process, is suitable for automatic charging, is convenient for transfer, changes the traditional manual conveying mode, greatly reduces the participation degree and labor intensity of personnel in the charging process, and reduces the safety risk.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of projectile body charging, in particular to a projectile body access device. BACKGROUND

[0002] Melt-cast explosive refers to a mixed explosive capable of being cast in a molten state. Its composition mainly includes a mixture of several single-element high explosives or a small amount of additional components. A typical one is TNT / RDX-based melt-cast explosive, in which TNT is a low-melting-point component, and its content should be able to ensure that the mixture has good fluidity, facilitating casting.

[0003] At present, the movement and transfer of projectile bodies during the charging process of melt-cast explosives are mainly completed by the "manual + auxiliary equipment" method. The projectile body is fixed on a tool by manual operation, and the projectile body is transferred to the charging area by manual operation of a crane or a cart. The projectile body is taken out and placed randomly in the charging area, and the projectile body is transferred out of the charging area by manual operation of the crane or the cart after the charge is solidified.

[0004] It can be seen that the current melt-cast explosive charging process is mainly manual operation, and the "manual + cart" or "manual + crane" method is used to transfer the projectile body during the charging process, which has problems such as too many personnel, high labor intensity, and random placement of the projectile body. SUMMARY

[0005] In view of the above problems, the present application provides a projectile body access device for overcoming the above problems or at least partially solving the above problems.

[0006] The present application provides the following solutions:

[0007] A projectile body access device, comprising:

[0008] An access assembly, the access assembly comprising a guide outer cover, a rodless cylinder, a linear guide rail, a sliding block, and a connecting plate; the guide outer cover is fixedly installed on the ground of the charging area, the rodless cylinder is installed on the inner bottom of the guide outer cover, the linear guide rail is installed on the inner wall of the guide outer cover, and the connecting plate is connected with the linear guide rail through the sliding block; the connecting plate is connected with the rodless cylinder;

[0009] A cart assembly, the cart assembly comprising a cart frame, a cart plate, a fixing tool, a characterizing block mounting plate, a characterizing block, a bottom guide roller, a walking wheel assembly and a connecting seat, the walking wheel assembly being connected to the cart frame; the cart plate being mounted on the cart frame, the fixing tool being mounted on the cart plate, the characterizing block mounting plate being mounted on the upper side of the front end of the cart plate, the characterizing block mounting plate being provided with a plurality of mounting holes, the characterizing block being mounted in any one of the plurality of mounting holes, the bottom guide roller being mounted below the cart frame, and the connecting seat being horizontally mounted just in front of the front end of the cart frame;

[0010] A connecting and fixing assembly, comprising a support, a lifting cylinder, a latch shaft, two fixing seats, an identification and detection sensor, and a buffer block; the support is mounted on the connecting plate, the lifting cylinder is mounted on the support, one end of the latch shaft is connected to the lifting cylinder, and the other end of the latch shaft is supported in the fixing seat, the two fixing seats are respectively located on the inner side of the support and are installed up and down along the axis of the latch shaft, the identification and detection sensor is mounted on the inner side of the support, and the buffer block is mounted on the front plate of the support;

[0011] Among them, the front end of the entry and exit component is arranged outside the charging area, and the rear end of the entry and exit component is arranged in the charging area; the identification detection sensor is consistent with the number, position and spacing of several of the installation holes, and is used to identify the installation position of the characterization block so as to realize the identification of the projectile model; the fixing tool is used to fix the projectile to be loaded, and after the trolley component enters the entry and exit component under the action of external force, the connecting seat enters between the two fixing seats, so that the pin shaft passes through the connecting seat along the two fixing seats under the drive of the lifting cylinder, so that the trolley component and the connecting and fixing component form a temporary fixed connection.

[0012] Preferably, the linear guide rails and the sliding blocks are both in two sets, which are respectively installed on both sides of the inner wall of the guide outer cover.

[0013] Preferably, the fixing fixture comprises two fixing blocks arranged opposite to each other, so as to fix the projectile to be charged with explosives by adopting a V-shaped clamping structure.

[0014] Preferably, a plurality of mounting positions are provided on the trolley plate so as to adjust the relative distance between the two fixing blocks and realize the fixing of the projectiles to be loaded with different diameters.

[0015] Preferably: the walking wheel assembly includes fixed casters and universal casters; the fixed casters are installed at two support corners at the front end of the bottom of the cart frame, and the universal casters are installed at two support corners at the rear end of the bottom of the cart frame.

[0016] Preferably, the universal caster has a brake function.

[0017] Preferably, the cart assembly further comprises a handle; the handle is mounted on the rear end of the cart frame.

[0018] Preferably, the bottom guide rollers include two groups, and the spacing between the bottom guide rollers becomes narrower along the forward direction, so as to cooperate with the guide outer cover to achieve the guiding and positioning function of the cart assembly.

[0019] Preferably, the characterization block includes a plurality of holes, the number of which is the same as the number of the mounting holes, so that different models of the projectile can be characterized by different arrangements and combinations on the mounting plate of the characterization block.

[0020] Preferably: the connection and fixing assembly also includes an in-place detection sensor, the in-place detection sensor is installed on a sensor bracket, and the sensor bracket is installed on the connecting plate; after the in-place detection sensor is triggered, the lifting cylinder drives the pin shaft along the two fixing seats through the connecting seat.

[0021] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0022] The present application provides a projectile entry and exit device. The entry and exit assembly is installed on the ground in the charging area, with the front end outside the charging area (connection station) and the rear end inside the charging area (charging station). The connection and fixing assembly is installed above the entry and exit assembly. The cart assembly can move freely independently or be connected and fixed to the connection and fixing assembly. This device realizes automatic identification, docking, and entry and exit of projectiles during the charging process, adapts to automated charging, and facilitates transportation. It changes the traditional manual transportation method, significantly reduces the human involvement and labor intensity of the charging process, and reduces safety risks.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0025] Figure 1 This is a schematic structural diagram of a projectile entry and exit device provided by an embodiment of the present invention;

[0026] Figure 2 It is a structural diagram of an inlet and outlet assembly provided by an embodiment of the present invention;

[0027] Figure 3 is a structural schematic diagram of a cart assembly provided by an embodiment of the present invention;

[0028] Figure 4 It is a structural schematic diagram of a connection and fixing assembly provided in an embodiment of the present invention.

[0029] In the figure: entry and exit component 1, guide outer cover 11, rodless cylinder 12, linear guide rail 13, slider 14, connecting plate 15, trolley component 2, trolley frame 21, trolley plate 22, fixed tooling 23, characterizing block mounting plate 24, characterizing block 25, bottom guide roller 26, fixed caster 27, universal caster 28, connecting seat 29, handle 210, connecting and fixing component 3, support 31, lifting cylinder 32, latch shaft 33, fixing seat 34, identification detection sensor 35, buffer block 36, in-position detection sensor 37, sensor bracket 38. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0031] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , is a projectile entry and exit device provided by an embodiment of the present invention, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, the device may include:

[0032] The in-and-out assembly 1 includes a guide outer cover 11, a rodless cylinder 12, a linear guide 13, a slider 14, and a connecting plate 15; the guide outer cover 11 is fixed to the ground in the charging area, the rodless cylinder 12 is installed on the inner bottom of the guide outer cover, the linear guide 13 is installed on both sides of the inner wall of the guide outer cover 11, and the connecting plate 15 is connected to the linear guide 13 through the slider 14; the connecting plate 15 is connected to the rodless cylinder 12;

[0033] The cart assembly 2 includes a cart frame 21, a cart plate 22, a fixing tool 23, a characterizing block mounting plate 24, a characterizing block 25, a bottom guide roller 26, a walking wheel assembly and a connecting seat 29, wherein the walking wheel assembly is connected to the cart frame 21; the cart plate 22 is mounted on the cart frame 21, the fixing tool 23 is mounted on the cart plate 22, the characterizing block mounting plate 24 is mounted on the upper side of the front end of the cart plate 22, the characterizing block mounting plate 24 is provided with a plurality of mounting holes, the characterizing block 25 is mounted in any one of the plurality of mounting holes, the bottom guide roller 26 is mounted below the cart frame 21, and the connecting seat 29 is horizontally mounted just in front of the front end of the cart frame 21;

[0034] The connecting and fixing assembly 3 includes a support 31, a lifting cylinder 32, a latch shaft 33, two fixing seats 34, an identification and detection sensor 35, and a buffer block 36; the support 31 is mounted on the connecting plate 15, the lifting cylinder 32 is mounted on the support 31, one end of the latch shaft 33 is connected to the lifting cylinder 32, and the other end of the latch shaft 33 is supported in the fixing seat 34, the two fixing seats 34 are respectively located on the inner side of the support 31 and are installed up and down along the axis of the latch shaft 33, the identification and detection sensor 35 is installed on the inner side of the support 31, and the buffer block 36 is installed on the front plate of the support 31;

[0035] Among them, the front end of the entry and exit component 1 is arranged outside the charging area, and the rear end of the entry and exit component 1 is arranged in the charging area; the identification detection sensor 35 is consistent with the number, position and spacing of several of the installation holes, and is used to identify the installation position of the characterization block 25 so as to realize the identification of the projectile model; the fixing tool 23 is used to fix the projectile to be loaded. After the trolley component 2 enters the entry and exit component 1 under the action of external force, the connecting seat 29 enters between the two fixing seats 34, so that the pin shaft 33 passes through the connecting seat 29 along the two fixing seats 34 under the drive of the lifting cylinder 32, so that the trolley component 2 and the connecting and fixing component 3 form a temporary fixed connection.

[0036] The bullet in-out device provided by the embodiment of the application is installed on the ground of the charging area, the front end is outside the charging area (connection station), the rear end is inside the charging area (charging station), the connection fixing assembly 3 is installed on the in-out assembly 1, the trolley assembly 2 can be moved independently and freely, and can also be connected and fixed with the connection fixing assembly 3. In use, the bullet is loaded manually and fixed, and then pushed to the connection station, after the trolley assembly 2 is detected to be in place, the connection fixing assembly 3 automatically identifies the bullet model and automatically performs connection and fixing, and the in-out assembly 1 drives the connection fixing assembly 3 to drive the trolley assembly 2 and the bullet into the charging station. After the charging is completed, the in-out assembly 1 sends the trolley assembly 2 and the bullet out, the connection fixing assembly 3 is automatically disconnected, and the trolley assembly 2 and the bullet are manually pushed to the designated area to unload the bullet. The device can automatically carry the bullet to the charging station for charging after the bullet is placed on the trolley assembly 2 by manual operation, and can also automatically identify the model of the bullet, facilitate the bullet transfer in the process of casting explosive charging, and realize automatic identification, docking and in-out of the bullet.

[0037] In order to ensure the stability of the trolley assembly 2 during automatic driving, the embodiment of the application can also provide that the linear guide rail 13 and the sliding block 14 are both two sets, which are respectively installed on the inner wall of the guide cover 11.

[0038] In order to ensure the stability of the bullet fixing, the embodiment of the application can also provide that the fixing tool 23 includes two oppositely arranged fixing blocks, so as to realize the fixing of the bullet to be charged by adopting a V-shaped clamping structure.

[0039] In order to realize the clamping of bullets of different sizes, the embodiment of the application can also provide that the trolley plate 22 is provided with a plurality of mounting positions, so as to adjust the relative distance between the two fixing blocks, and realize the fixing of the bullet to be charged of different diameters.

[0040] Further, the embodiment of the application can provide that the walking wheel assembly includes a fixed caster 27 and a universal caster 28; the fixed caster 27 is installed at the two branch angles of the front end of the bottom of the trolley frame 21, and the universal caster 28 is installed at the two branch angles of the rear end of the bottom of the trolley frame 21. The universal caster 28 has a brake function.

[0041] In order to facilitate the user to manually push the trolley assembly 2, the embodiment of the application can also provide that the trolley assembly 2 further includes a handle 210; the handle 210 is installed at the rear end of the trolley frame 21.

[0042] To further facilitate the user in pushing the cart assembly 2 into and out of the assembly 1, the embodiment of the present application may further provide that the bottom guide rollers 26 include two groups, and the spacing between the bottom guide rollers 26 gradually narrows along the forward direction, so as to cooperate with the guide outer cover 11 to achieve the guiding and positioning function of the cart assembly 2. The guide outer cover 11 can be configured as a pointed structure at one end to facilitate the entry of the cart assembly 2.

[0043] The embodiment of the present application may include multiple characterization blocks, which are used to characterize different types of projectiles according to different installation positions. In specific implementation, the embodiment of the present application may include the characterization block 25 including multiple characters having the same number as the number of the several installation holes, so as to characterize different types of projectiles through different arrangements and combinations on the characterization block mounting plate 24.

[0044] In order to detect whether the trolley assembly 2 and the connecting and fixing assembly 3 are in place, the embodiment of the present application can provide that the connecting and fixing assembly 3 also includes an in-place detection sensor 37, and the in-place detection sensor 37 is installed on a sensor bracket 38, and the sensor bracket 38 is installed on the connecting plate 15; after the in-place detection sensor 37 is triggered, the lifting cylinder 32 drives the pin shaft 33 along the two fixing seats 34 through the connecting seat 29.

[0045] The structure and usage of the device provided in this application are introduced in detail below.

[0046] The projectile entry and exit device provided in the embodiment of the present application includes an entry and exit assembly 1, a trolley assembly 2, and a connection and fixing assembly 3. The entry and exit assembly 1 is installed on the ground in the charging area, with the front end outside the charging area (connection station) and the rear end inside the charging area (charging station). The connection and fixing assembly 3 is installed above the entry and exit assembly 1. The trolley assembly 2 can move freely on its own or be connected and fixed to the connection and fixing assembly 3.

[0047] The in-and-out assembly 1 consists of a guide housing 11, a rodless cylinder 12, a linear guide 13, a slider 14, and a connecting plate 15. The guide housing 11 is fixed to the ground, the rodless cylinder 12 is mounted on the inner bottom of the guide housing 11, the linear guide 13 is mounted on both sides of the inner wall of the guide housing 11, the slider 14 is mounted on the linear guide 13 and can slide along the linear guide 13, and the connecting plate 15 is connected and fixed to the slider 14 and the rodless cylinder 12.

[0048] Furthermore, the linear guide rails 13 and the sliders 14 are both in two sets, which are respectively installed on both sides of the inner wall of the guide outer cover 11.

[0049] The trolley assembly 2 is composed of a trolley frame 21, a trolley plate 22, a fixed tool 23, a characterization block mounting plate 24, a characterization block 25, a bottom guide roller 26, a fixed caster 27, a universal caster 28, a connecting seat 29, a handle 210. Among them, the fixed caster 27 is installed at the bottom of the two front corners of the trolley frame 21, the universal caster 28 is installed at the bottom of the two rear corners of the trolley frame 21, the trolley plate 22 is installed on the trolley frame 21, the fixed tool 23 is installed on the trolley plate 22, the characterization block mounting plate 24 is installed on the front end of the trolley plate 22, the characterization block 25 is installed in the hole of the characterization block mounting plate 24, the bottom guide roller 26 is installed below the trolley frame 21, the handle 210 is installed at the rear end of the trolley frame 21, and the connecting seat 29 is horizontally installed in front of the front end of the trolley frame 21.

[0050] Further, the trolley plate 22 has a plurality of fixed tool 23 installation positions, the fixed tool 23 position is adjusted according to the diameter of the bullet, and the bullet of a certain diameter range is compatible, and the production of multiple models of bullets is adapted.

[0051] Further, the fixed tool 23 is composed of two fixed blocks, and the V-shaped clamping structure is adopted to fix the bullet.

[0052] Further, the universal caster 28 has a brake function.

[0053] Further, the bottom guide roller 26 is composed of two groups of rollers, the distance between the rollers is changed from wide to narrow, and the guide cover 11 is matched to realize the guiding and positioning function of the trolley assembly 2.

[0054] Further, the number of the characterization block 25 is configured according to the number of the installation holes of the characterization block mounting plate 24, and different arrangement combinations of the characterization block mounting plate 24 are used to characterize different models of bullets.

[0055] The connecting and fixing assembly 3 is composed of a support 31, a lifting cylinder 32, a bolt shaft 33, a fixed seat 34, an identification detection sensor 35, a position detection sensor 37, a sensor support 38, and a buffer block 36.

[0056] Among them, the support 31 is installed on the connecting plate 15, the lifting cylinder 32 is installed on the upper plate of the support 31, one end of the bolt shaft 33 is connected with the lifting cylinder 32, the other end is supported in the fixed seat 34, the fixed seat 34 is installed on the inner side of the support 31, the identification detection sensor 35 is installed on the inner side of the support 31, the position detection sensor 37 is installed on the sensor support 38, the sensor support 38 is installed on the connecting plate 15, and the buffer block 36 is installed on the front plate of the support 31.

[0057] Further, the fixed seat 34 is two, which is installed up and down along the axis of the bolt shaft 33, and the bolt shaft 33 can smoothly slide in the fixed seat 34.

[0058] Further, the identification detection sensor 35 is consistent with the number, position and spacing of the mounting holes of the characterization block mounting plate 24, ensuring that each mounting hole position has an identification detection sensor 35 to detect whether the position has a characterization block 25, and the model identification function of the projectile is realized through the detection signal combination of the detection sensor, which facilitates the automatic call of the corresponding process formula by the charging control system.

[0059] Further, the connecting and fixing method of the trolley assembly 2 is that the connecting seat 29 of the trolley assembly 2 is guided into the two fixing seats 34, the lifting cylinder 32 drives the bolt shaft 33 to pass through the connecting seat 29 along the fixing seat 34, and the connecting and fixing is formed.

[0060] Further, the projectile model detection and identification method is a detection and identification method based on permutation and combination, and different projectile model information is realized through the physical permutation and combination of the characterization block 25. One permutation and combination represents one projectile model information. When encoding, the characterization block 25 representing the corresponding projectile model is fixed in the corresponding mounting plate hole according to the corresponding permutation and combination, the permutation and combination of the characterization block 25 is detected through the sensor, the corresponding permutation and combination detection signal is generated, and the projectile model information is decoded and identified.

[0061] The working process of the projectile loading and unloading device described in the present example is as follows:

[0062] A. Manually place the projectile into the fixed tool 23 on the trolley assembly 2 and fasten it, and at the same time, set the combination of the characterization block 25 according to the projectile model.

[0063] B. Manually push the trolley assembly 2 to the connecting and fixing assembly 3, and after the in-place detection sensor 37 identifies that the trolley assembly 2 is in place, the lifting cylinder 32 drives the bolt shaft 33 to fall into the fixing seat 34 and the connecting seat 29, connecting the trolley assembly 2 and the connecting and fixing assembly 3, and at the same time, the identification detection sensor 35 detects and identifies the combination of the characterization block 25, and confirms the projectile model.

[0064] C. The rodless cylinder 12 in the loading and unloading assembly 1 drives the connecting and fixing assembly 3 to move the trolley assembly 2 to the charging station.

[0065] D. After the charging is completed, the rodless cylinder 12 provides power to move the projectile out of the charging station, the lifting cylinder 32 drives the bolt shaft 33 to pull out the fixing seat 34 and the connecting seat 29, and the trolley assembly 2 and the connecting and fixing assembly 3 are separated, the trolley assembly 2 is moved to the designated area by manual operation, and the fixed tool 23 is opened to take out the projectile.

[0066] In summary, the elastic body access device provided in the application has the access assembly installed on the ground of the charging area, with the front end outside the charging area (connection station) and the rear end inside the charging area (charging station), the connection fixing assembly installed on the access assembly, and the trolley assembly being movable independently and freely or fixedly connected with the connection fixing assembly. The device realizes automatic identification, docking and access of the elastic body in the charging process, is suitable for automatic charging, and is convenient for transfer, changes the traditional manual delivery mode, greatly reduces the participation degree and labor intensity of personnel in the charging process, and reduces the safety risk.

[0067] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0068] From the above description of the embodiments, those skilled in the art can clearly understand that the application can be implemented by means of software plus a necessary universal hardware platform. Based on such an understanding, the technical solutions of the application can be embodied in the form of a software product, and the computer software product can be stored in a storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, and the like, and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in the various embodiments or some parts of the embodiments of the application.

[0069] The various embodiments described in this specification are presented as examples of the application. Each example is provided by way of best mode, and variations of or additions to these examples can be possible. For example, the various embodiments described in this specification can be combined in different combinations. Further, other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. For example, to implement a system embodiment, one can implement a method embodiment and one or more system modules to perform the method embodiment. Each of the above exemplary embodiments and obvious modifications thereof can be implemented in hardware, software, or any combination of hardware and software. Any appropriate software can be implemented in a computer program product tangibly embodied in a machine-readable storage medium, for execution by a processor. The machine-readable storage medium can include, but is not limited to, optical disks, CD-ROMs, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, magnet or optical cards, or any other suitable device for storing software. Each of the foregoing exemplary embodiments and / or other embodiments can be implemented as either hardware or software, or any combination of hardware and software. Unless otherwise stated, the boundaries of the specification shall be determined solely by the language of the claims. Moreover, each of the local, network, and distributed embodiments described in this specification are to be included within its scope, with the exception of local embodiments specified as being incompatible with particular network or distributed embodiments. Accordingly, the application as shown and described is not to be limited in scope by the embodiments disclosed in this specification.

[0070] The embodiments described above are merely exemplary implementations of the application. Other variations to these embodiments can be made and will be apparent to one skilled in the art once the scope of the subject matter disclosed herein is known. Any modification, substitution, improvement, and the like which do not depart from the spirit and principle of the application are intended to be embraced within the scope of the application.

Claims

1. A projectile inlet and outlet device, characterized in that: include: An in-and-out assembly comprises a guide outer cover, a rodless cylinder, a linear guide rail, a slider, and a connecting plate; the guide outer cover is fixed to the ground in the charging area, the rodless cylinder is installed on the inner bottom of the guide outer cover, the linear guide rail is installed on both sides of the inner wall of the guide outer cover, the connecting plate is connected to the linear guide rail through the slider; the connecting plate is connected to the rodless cylinder; A cart assembly, the cart assembly comprising a cart frame, a cart plate, a fixing tool, a characterizing block mounting plate, a characterizing block, a bottom guide roller, a walking wheel assembly and a connecting seat, the walking wheel assembly being connected to the cart frame; the cart plate being mounted on the cart frame, the fixing tool being mounted on the cart plate, the characterizing block mounting plate being mounted on the upper side of the front end of the cart plate, the characterizing block mounting plate being provided with a plurality of mounting holes, the characterizing block being mounted in any one of the plurality of mounting holes, the bottom guide roller being mounted below the cart frame, and the connecting seat being horizontally mounted just in front of the front end of the cart frame; A connecting and fixing assembly, comprising a support, a lifting cylinder, a latch shaft, two fixing seats, an identification and detection sensor, and a buffer block; the support is mounted on the connecting plate, the lifting cylinder is mounted on the support, one end of the latch shaft is connected to the lifting cylinder, and the other end of the latch shaft is supported in the fixing seat, the two fixing seats are respectively located on the inner side of the support and are installed up and down along the axis of the latch shaft, the identification and detection sensor is mounted on the inner side of the support, and the buffer block is mounted on the front plate of the support; Among them, the front end of the entry and exit component is arranged outside the charging area, and the rear end of the entry and exit component is arranged in the charging area; the identification detection sensor is consistent with the number, position and spacing of several of the installation holes, and is used to identify the installation position of the characterization block so as to realize the identification of the projectile model; the fixing tool is used to fix the projectile to be loaded, and after the trolley component enters the entry and exit component under the action of external force, the connecting seat enters between the two fixing seats, so that the pin shaft passes through the connecting seat along the two fixing seats under the drive of the lifting cylinder, so that the trolley component and the connecting and fixing component form a temporary fixed connection.

2. The projectile entry and exit device according to claim 1, characterized in that: The linear guide rails and the sliding blocks are both in two sets, which are respectively installed on both sides of the inner wall of the guide outer cover.

3. The projectile entry and exit device according to claim 1, characterized in that: The fixing fixture includes two fixing blocks arranged opposite to each other, so as to fix the projectile to be charged with explosives by adopting a V-shaped clamping structure.

4. The projectile entry and exit device according to claim 3, characterized in that: The trolley plate is provided with a plurality of mounting positions so as to adjust the relative distance between the two fixing blocks and realize the fixing of the projectiles to be charged with different diameters.

5. The projectile entry and exit device according to claim 1, characterized in that: The walking wheel assembly includes fixed casters and universal casters; the fixed casters are installed at two support angles at the front end of the bottom of the cart frame, and the universal casters are installed at two support angles at the rear end of the bottom of the cart frame.

6. The projectile entry and exit device according to claim 5, characterized in that: The universal caster has a brake function.

7. The projectile entry and exit device according to claim 1, characterized in that: The pushcart assembly further comprises a handle; the handle is mounted on the rear end of the pushcart frame.

8. The projectile entry and exit device according to claim 1, characterized in that: The bottom guide rollers include two groups, and the spacing between the bottom guide rollers becomes narrower along the forward direction, so as to cooperate with the guide outer cover to realize the guiding and positioning function of the cart assembly.

9. The projectile entry and exit device according to claim 1, characterized in that: The characterization block includes a plurality of holes, the number of which is the same as the number of the mounting holes, so that different models of the projectile can be characterized by different arrangements and combinations on the mounting plate of the characterization block.

10. The projectile entry and exit device according to claim 1, characterized in that: The connection and fixing assembly also includes an in-place detection sensor, which is installed on a sensor bracket, and the sensor bracket is installed on the connecting plate; after the in-place detection sensor is triggered, the lifting cylinder drives the pin shaft along the two fixing seats through the connecting seat.

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