A linear motor assembly for instantaneous acceleration

Abstract

The present application relates to the technical field of motors and specifically discloses a linear motor assembly for instantaneous acceleration, comprising a motor seat and a launching platform, wherein a motor is provided on the motor seat, the motor is connected to a first sprocket, a sprocket frame is provided above the motor seat, the sprocket frame is connected to a second sprocket, a chain is provided above the first sprocket and the second sprocket, a locking platform is provided above the launching platform, a side column and a center column are provided between the launching platform and the locking platform, a lock portion is slidably connected to the center column, the lock portion comprises a lock body and a lock cover, the lock cover covers the lock body, a lock slide is slidably connected to the lock body, two ends of the lock slide pass through the lock body, the lock slide is connected to a lock tongue at one end near the chain, the chain is connected to a buckle, the lock body is inserted into the buckle, the lock slide is connected to an unlocking block, the unlocking block is tilted near a side of the lock tongue, an unlocking groove is provided on the lock body, the inclined surface of the unlocking block is located in the unlocking groove, the side column is connected to a key rod, and the key rod is located directly above the unlocking groove.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a linear motor assembly for instantaneous acceleration. Background Art

[0002] In areas such as material impact testing, ejection devices, and automated assembly, instantaneous acceleration and controlled separation of loads are often required. However, traditional linear motor drive systems have significant technical bottlenecks: First, the separation position of the load after acceleration is affected by mechanical inertia and electromagnetic reaction, making it difficult to accurately control and resulting in poor test repeatability. Second, conventional chain drives require a tensioner to compensate for slack, and the additional friction loss reduces system efficiency. Third, the high-speed impact of the load on the slide generates reverse rebound, which in turn generates reverse induced current in the drive device, easily causing a short circuit in the motor winding. Fourth, when using mechanical energy storage methods such as springs or impact cylinders, manual intervention or the addition of a complex reset mechanism is required after each action, affecting operational efficiency.

[0003] Therefore, it can be seen that there is an urgent need to develop a new linear motor assembly to implement instantaneous acceleration and controlled separation of the load. Summary of the Invention

[0004] In order to use a stable and controllable power source in situations where it is necessary to instantaneously accelerate an object and control its separation speed, the present application provides a linear motor assembly for instantaneous acceleration.

[0005] The present application provides a linear motor assembly for instantaneous acceleration, which adopts the following technical solution:

[0006] A linear motor assembly for instantaneous acceleration includes a motor base and a launching platform, wherein the motor base is provided with a motor, the output shaft of the motor is coaxially connected to a first sprocket, a sprocket frame is provided above the motor base, a second sprocket is rotatably connected to the sprocket frame, a chain is sleeved on the first sprocket and the second sprocket, an anti-slip platform is provided above the launching platform, side columns and a central column are connected between the launching platform and the anti-slip platform, the side columns are located at the four corners of the launching platform, a lock part is slidably connected to the central column, the lock part includes a lock body and a lock cover, the lock cover covers the top of the lock body The lock body is provided with a lock slide bar which is slidably connected to the lock body, and both ends of the lock slide bar pass through the lock body, and one end of the lock slide bar close to the chain is connected to a lock tongue, and the lock tongue passes through the lock body, and the side of the chain close to the lock part is connected to a buckle, and the lock body is inserted into the buckle, and an unlocking block is connected to the lock slide bar, and the unlocking block is inclined on the side close to the lock tongue, and the bottom of the inclined surface of the unlocking block is inclined toward the direction of the lock tongue, and an unlocking groove is provided on the lock body, and the inclined surface of the unlocking block is located in the unlocking groove, and a key rod is connected to the side column, and the key rod is located just above the unlocking groove.

[0007] By adopting the above technical solution, when it is necessary to implement instantaneous acceleration on the load, the load is placed on the lock cover, the lock tongue is inserted into the card slot, the motor is started, and the output shaft of the motor drives the first sprocket to rotate, and the chain rotates accordingly, driving the lock part and the load to rise. When the lock body rises to the key rod position, the inclined surface of the unlocking block is squeezed by the key rod, driving the lock slide bar to move away from the buckle, thereby realizing the separation of the lock part and the chain. Since the lock part is blocked, the load continues to move under the action of inertia, thereby realizing controlled separation.

[0008] Optionally, the lock tongue is tilted toward one side of the buckle, and the bottom of the tilted surface of the lock tongue is tilted away from the buckle. The buckle is tilted toward one side of the lock tongue, and the bottom of the tilted surface of the buckle is tilted toward the lock tongue.

[0009] Optionally, a connecting block is provided on the lock slide rod, and the connecting block is located on the side of the unlocking block close to the lock tongue. A reset spring is connected to the side of the connecting block facing the lock tongue, and a reset rod is connected to the end of the reset spring away from the connecting block. Both ends of the reset rod are connected to the lock body, and when the lock tongue is inserted into the clamping groove, the reset spring is in a stretched state.

[0010] By adopting the above technical solution, when the lock body and the buckle are separated, the lock part falls back to the initial position under the reaction of gravity and the key rod, and the motor is controlled to reverse, so that the buckle moves to the starting position. Under the action of gravity and the elastic force of the reset spring, the lock tongue is squeezed against the inclined surface of the buckle and slides along the inclined surface of the buckle into the snap-fit groove to realize the reset operation, making the test repeatable. Since the reset spring is in a stretched state when the lock tongue is connected to the buckle, the reset spring tends to push the lock tongue toward the buckle.

[0011] Optionally, a limiting rod is provided below the return spring.

[0012] Optionally, a lock slider is provided in the lock body, a sliding groove is provided on the lock slider, and the lock slide rod is slidably connected to the sliding groove.

[0013] Optionally, two central columns are provided, and connecting parts are provided on both sides of the lock body, and the connecting parts are slidably connected to the central column.

[0014] Optionally, a linear bearing is slidably connected to the central column, and the linear bearing passes through the connecting portion.

[0015] By adopting the above technical solution, the provision of the two connecting parts makes the connection between the locking part and the central column stable.

[0016] Optionally, a key seat is provided on two side columns away from the chain, and the key rod is rotatably connected to the bottom of the key seat.

[0017] Optionally, two bearing seats are provided on the motor seat, a first shaft is coaxially connected to the output shaft of the motor, the first shaft is rotatably connected to the bearing seats, and the first sprocket is sleeved on the first shaft.

[0018] Optionally, a plurality of chain columns are connected to the bearing seat, and the sprocket frame is connected to the chain columns.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. When instantaneous acceleration of a load is required, the load is placed on the lock cover, the lock tongue is inserted into the engaging slot, and the motor is started. The motor's output shaft drives the first sprocket to rotate, and the chain rotates accordingly, driving the lock and the load to rise. When the lock body rises to the key rod position, the inclined surface of the unlocking block is squeezed by the key rod, driving the lock slide bar away from the buckle, separating the lock and the chain. Since the lock is blocked, the load continues to move under the action of inertia, thus achieving controlled separation.

[0021] 2. When the lock body and buckle are separated, the lock part falls back to its initial position under the reaction of gravity and the key rod. The motor is controlled to reverse, causing the buckle to move to the starting position. Under the action of gravity and the elastic force of the return spring, the lock tongue is squeezed against the inclined surface of the buckle and slides along the inclined surface of the buckle into the engaging groove, completing the reset operation. This makes the test repeatable. Because the return spring is in a stretched state when the lock tongue and buckle are connected, the return spring tends to push the lock tongue toward the buckle.

[0022] 3. The arrangement of the two connecting parts ensures a stable connection between the locking part and the center column. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of the reset phase of a linear motor assembly for instantaneous acceleration in an embodiment of the present application.

[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0025] Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0026] Figure 4 It is a structural schematic diagram of the working phase of a linear motor assembly for instantaneous acceleration in an embodiment of the present application.

[0027] Figure 5 yes Figure 4 Enlarged view of point C in the middle.

[0028] Figure 6It is a structural diagram of the lock portion in an embodiment of the present application.

[0029] Figure 7 This is a top view of the lock portion with the lock cover removed in the embodiment of the present application.

[0030] Figure 8 It is along Figure 7 Cross-sectional view in the AA direction.

[0031] Figure 9 It is a schematic structural diagram of the lock portion in the embodiment of the present application after removing the lock cover, lock body, through end plate and blocking end plate.

[0032] Figure 10 yes Figure 4 Enlarged view of point D in the middle.

[0033] Explanation of the accompanying symbols: 1. bottom plate; 2. motor base; 3. launching platform; 4. base plate; 5. receiving plate; 6. bearing seat; 7. power motor; 8. first shaft; 9. chain column; 10. connecting frame; 11. sprocket frame; 12. support rod; 13. connecting rod; 14. first sprocket; 15. second shaft; 16. second sprocket; 17. chain; 18. anti-slip platform; 19. through groove; 20. side column; 21. center column; 22. column foot fixing block; 23. key seat; 24. connecting plate; 25. fixing plate; 26 , key rod; 27, lock part; 28, lock body; 29, lock cover; 30, through end plate; 31, blocking end plate; 32, lock upper part; 33, lock lower part; 34, slider groove; 35, lock slider; 36, sliding groove; 37, lock slide bar; 38, lock tongue; 39, lock core; 40, unlocking block; 41, connecting block; 42, unlocking groove; 43, reset spring; 44, reset rod; 45, limit rod; 46, buckle; 47, clamping upper part; 48, clamping lower part; 49, clamping groove; 50, connecting part; 51, linear bearing. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-10 This application is described in further detail.

[0035] Example

[0036] An embodiment of the present application discloses a linear motor assembly for instantaneous acceleration.

[0037] Reference Figure 1 A linear motor assembly for instantaneous acceleration includes a base plate 1, a motor base 2 and a launching platform 3 are provided on the base plate 1, the motor base 2 is fixed to the base plate 1 by bolts, the launching platform 3 is located on one side of the motor base 2, and the launching platform 3 is fixed to the base plate 1 by bolts.

[0038] Reference Figure 1 and Figure 2The motor base 2 includes a base plate 4, a receiving plate 5 and a bearing seat 6. The base plate 4 is horizontally arranged on the bottom plate 1 and is connected to the bottom plate 1 by bolts. There are two groups of receiving plates 5, each group of receiving plates 5 has two receiving plates 5, and the receiving plates 5 are vertically arranged on the base plate 4. The receiving plates 5 and the base plate 4 are integrally formed. The two groups of receiving plates 5 are symmetrically arranged along the axis of the base plate 4, and there is a gap between the two receiving plates 5 in the same group. There are two bearing seats 6, and the bearing seats 6 are located between the two groups of receiving plates 5. The two bearing seats 6 are symmetrically arranged along the axis of the base plate 4, and the bearing seats 6 and the base plate 4 are integrally formed.

[0039] Reference Figure 1 and Figure 2 The motor base 2 is provided with a power motor 7, which is placed on a set of receiving plates 5, and the power motor 7 contacts the top of the receiving plates 5. The output shaft of the power motor 7 is rotatably connected to a bearing seat 6, and the output shaft of the power motor 7 is connected to a first shaft 8 through a coupling. The end of the first shaft 8 away from the power motor 7 is rotatably connected to the other bearing seat 6.

[0040] Reference Figure 1 Two chain posts 9 are vertically arranged on each bearing seat 6. The chain posts 9 are fixedly connected to the top of the bearing seat 6. The two chain posts 9 on the same bearing seat 6 are symmetrically arranged, and the chain posts 9 on the two bearing seats 6 are symmetrically arranged. A connecting frame 10 is provided at the end of the chain post 9 away from the bearing seat 6. The connecting frame 10 is a square frame. The connecting frame 10 is arranged parallel to the bottom plate 1. The bottom of the connecting frame 10 is fixedly connected to the chain post 9. The connecting frame 10 connects the four chain posts 9.

[0041] Reference Figure 1 and Figure 3 A sprocket frame 11 is provided on the chain column 9. The sprocket frame 11 is located below the connecting frame 10. The sprocket frame 11 is arranged parallel to the connecting frame 10, and the sprocket frame 11 is open on one side of the launch platform 3. The sprocket frame 11 includes two support rods 12 and a connecting rod 13. The two support rods 12 are arranged opposite to each other. The support rods 12 are located above the bearing seat 6. The position of each support rod 12 corresponds to the position of a bearing seat 6. The two chain columns 9 on the same bearing seat 6 pass through a support rod 12, and the chain columns 9 are fixedly connected to the support rod 12. The connecting rod 13 is located between the two support rods 12. The connecting rod 13 is located at the end of the support rod 12 away from the launch platform 3. The connecting rod 13 is arranged perpendicular to the support rod 12, and the connecting rod 13 and the support rod 12 are formed integrally.

[0042] Reference Figure 2 and Figure 3A first sprocket 14 is mounted on the first shaft 8 and is coaxially fixedly connected to the first shaft 8. A second shaft 15 is rotatably connected to the sprocket frame 11 and is arranged parallel to the first shaft 8. One end of the second shaft 15 is rotatably connected to one support rod 12, and the other end of the second shaft 15 is rotatably connected to the other support rod 12. A second sprocket 16 is mounted on the second shaft 15 and is coaxially fixedly connected to the second shaft 15. A chain 17 is mounted on the first sprocket 14 and the second sprocket 16.

[0043] Reference Figure 4 A locking platform 18 is provided above the launch platform 3. The locking platform 18 is arranged parallel to the launch platform 3. A through slot 19 is provided on the locking platform 18. The through slot 19 is located at the center of the locking platform 18. The through slot 19 is a through slot in the vertical direction. Side columns 20 and a center column 21 are provided between the locking platform 18 and the launch platform 3. There are four side columns 20, and the side columns 20 are vertically arranged at the four corners of the launch platform 3. One end of the side column 20 is fixedly connected to the launch platform 3, and the other end of the side column 20 is fixedly connected to the bottom of the locking platform 18. The two side columns 20 close to the motor base 2 pass through the connecting frame 10. The side columns 20 are located at the two corners of the connecting frame 10, and there is a gap between the side columns 20 and the chain column 9.

[0044] Reference Figure 4 There are two center columns 21, located between the four side columns 20, and symmetrically arranged about the axis of the launch platform 3. One end of the center column 21 is fixedly connected to the launch platform 3, and the other end of the center column 21 is fixedly connected to the bottom of the anti-slip platform 18. The end of the center column 21 closest to the launch platform 3 is provided with a column foot fixing block 22, which is fixed to the launch platform 3 by bolts. The center column 21 passes through the column foot fixing block 22 and is fixedly connected to the column foot fixing block 22.

[0045] Reference Figure 4 and Figure 5 A key seat 23 is provided on the two side columns 20 away from the sprocket frame 11. The key seat 23 includes a connecting plate 24 and a fixing plate 25. The connecting plate 24 is located between the launching platform 3 and the anti-slip platform 18. The connecting plate 24 is arranged parallel to the anti-slip platform 18. The two side columns 20 away from the sprocket frame 11 pass through the connecting plate 24. There are two fixing plates 25. The fixing plates 25 are vertically arranged at the bottom of the connecting plate 24. The fixing plates 25 and the connecting plates 24 are integrally formed. The two fixing plates 25 are symmetrically arranged. A key rod 26 is provided between the two fixing plates 25. The key rod 26 is arranged parallel to the connecting plate 24. Both ends of the key rod 26 pass through the fixing plate 25. The key rod 26 is rotatably connected to the fixing plate 25. The height of the key rod 26 is lower than the second shaft 15.

[0046] Reference Figure 4 and Figure 6A lock portion 27 is slidably connected to the center column 21. The lock portion 27 comprises a lock body 28, a lock cover 29, a through end plate 30, and a blocking end plate 31. The lock body 28 comprises an upper lock portion 32 and a lower lock portion 33. The lower lock portion 33 is a rectangular parallelepiped with an open top. The upper lock portion 32 is vertically continuous, and the longitudinal cross-section of the upper lock portion 32 is an isosceles trapezoid. The upper lock portion 32 is located at the top of the lower lock portion 33. The length of the upper lock portion 32 is equal to the length of the lower lock portion 33. The interior of the upper lock portion 32 is connected to the interior of the lower lock portion 33, and the upper lock portion 32 and the lower lock portion 33 are integrally formed. The lock cover 29 is fixed to the upper lock portion 32 by bolts, and the lock cover 29 covers the opening at the top of the upper lock portion 32.

[0047] Reference Figure 7 and Figure 8 The upper lock portion 32 and the lower lock portion 33 are both continuous in their lengthwise direction. The through end plate 30 is located on one side of the lock body 28. The through end plate 30 blocks the openings on one side of the upper lock portion 32 and the lower lock portion 33 in the lengthwise direction. The through end plate 30 is fixed to the lock body 28 by bolts, and the shape of the through end plate 30 is adapted to the shape of the lock body 28. The blocking end plate 31 is located on the side of the lock body 28 away from the through end plate 30. The blocking end plate 31 blocks the openings on one side of the upper lock portion 32 and the lower lock portion 33. The blocking end plate 31 is fixed to the lock body 28 by bolts, and the shape of the blocking end plate 31 is the same as that of the through end plate 30.

[0048] Reference Figure 8 and Figure 9 The lower lock portion 33 defines two slider slots 34, which open upward and are spaced apart. Each slider slot 34 contains a locking slider 35, which is secured to the bottom of the slider slot 34 via bolts (not shown). The locking slider 35 defines a sliding slot 36, which opens upward and extends through the length of the lower lock portion 33. A locking slide bar 37 is provided within the lower lock portion 33, with its length parallel to that of the lower lock portion 33. The locking slide bar 37 is slidably connected to the two sliding slots 36. One end of the locking slide bar 37 extends through the through-end plate 30, while the other end extends through the blocking end plate 31. A locking tongue 38 is sleeved onto one end of the locking slide bar 37, which is secured to the locking slide bar 37 via bolts. The locking tongue 38 passes through the end plate 30 . A side of the locking tongue 38 away from the blocking end plate 31 is inclined, and a top of the side is inclined in a direction away from the blocking end plate 31 .

[0049] Reference Figure 8 and Figure 9The lock slide 37 is provided with a lock core 39, which includes an unlocking block 40 and a connecting block 41. Both the unlocking block 40 and the connecting block 41 are bolted to the top of the lock slide 37. The unlocking block 40 is located on the side of the connecting block 41 away from the lock tongue 38. The unlocking block 40 and the connecting block 41 are integrally formed. The unlocking block 40 is tilted toward the side of the lock tongue 38, with the bottom of this side tilted toward the lock tongue 38. The lock upper portion 32 defines an unlocking slot 42. The unlocking slot 42 is a vertical through-slot that extends through the lock cover 29, and the inclined surface of the unlocking block 40 is located within the unlocking slot 42.

[0050] Reference Figure 8 and Figure 9 A return spring 43 is fixedly connected to the side of the connecting block 41 away from the unlocking block 40. There is a gap between the return spring 43 and the lock slide 37. A return rod 44 is fixedly connected to the end of the return spring 43 away from the connecting block 41. The two ends of the return rod 44 pass through the side wall of the upper lock portion 32, and the return rod 44 is fixedly connected to the upper lock portion 32. A limiting rod 45 is provided on the side of the connecting block 41 away from the unlocking block 40. The limiting rod 45 is located below the return spring 43. The two ends of the limiting rod 45 pass through the side wall of the upper lock portion 32, and the limiting rod 45 is fixedly connected to the upper lock portion 32.

[0051] Reference Figure 8 and Figure 10 A buckle 46 is provided on the side of the chain 17 facing the lock portion 27. Buckle 46 comprises an upper engaging portion 47 and a lower engaging portion 48. The upper engaging portion 47 is located on top of the lower engaging portion 48. The upper engaging portion 47 and the lower engaging portion 48 are integrally formed and fixed to the chain 17 via bolts. The lower engaging portion 48 is a rectangular parallelepiped. A snap groove 49 is defined on the side of the lower engaging portion 48 facing the lock body 28. A lock tongue 38 is located on the end of the lock slide 37 near buckle 46. The shape of the lock tongue 38 matches the shape of the snap groove 49. When the lock tongue 38 is inserted into the snap groove 49, the return spring 43 is in a stretched state. The side of the upper engaging portion 47 near the lock body 28 is inclined, with the bottom of this side inclined toward the lock body 28.

[0052] Reference Figure 4 and Figure 10 The unlocking slot 42 is located directly below the key rod 26. Connecting portions 50 are provided on either side of the lock lower portion 33 and are integrally formed with the lock lower portion 33. A linear bearing 51 is slidably connected to each center column 21, extending through the connecting portion 50 and being fixedly connected to the connecting portion 50.

[0053] The implementation principle of a linear motor assembly for instantaneous acceleration in the embodiment of the present application is as follows: when instantaneous acceleration is required for a load, the load is placed on the lock cover 29, and the lock tongue 38 is inserted into the clamping groove 49, and then goes through four stages: the working stage, the power motor 7 is started, the output shaft of the power motor 7 drives the first sprocket 14 to rotate, the chain 17 drives the buckle 46 to rise, and the lock part 27 and the load rise accordingly; the separation stage, when the lock body 28 rises to the position of the key rod 26, the unlocking block 40 is squeezed by the key rod 26, and drives the lock slide bar 37 to move away from the buckle 46. The lock portion 27 is moved to separate from the chain 17. Since the lock portion 27 is blocked, the load continues to move under the action of inertia, thereby realizing the impact movement or ejection required for the test; in the standby stage, under the reaction of gravity and the key rod 26, the lock portion 27 falls back to the initial position, and the power motor 7 is controlled to decelerate the buckle 46 to the neutral position; in the reset stage, the power motor 7 controls the chain 17 to move to the starting position. Under the action of gravity and the elastic force of the reset spring 43, the lock tongue 38 is squeezed against the clamping upper portion 47 and slides along the inclined surface of the clamping upper portion 47 into the clamping groove 49 to realize the reset operation.

[0054] By providing the locking portion 27 and the buckle 46 , not only can the load be instantaneously accelerated and controlled separation be achieved, but resetting is also facilitated, making the test repeatable.

[0055] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A linear motor assembly for instantaneous acceleration, characterized in that: The invention comprises a motor base (2) and a launching platform (3), wherein the motor base (2) is provided with a motor, the output shaft of the motor is coaxially connected to a first sprocket (14), a sprocket frame (11) is provided above the motor base (2), a second sprocket (16) is rotatably connected to the sprocket frame (11), a chain (17) is sleeved on the first sprocket (14) and the second sprocket (16), a stop platform (18) is provided above the launching platform (3), side columns (20) and a center column (21) are connected between the launching platform (3) and the stop platform (18), the side columns (20) are located at the four corners of the launching platform (3), a lock part (27) is slidably connected to the center column (21), the lock part (27) comprises a lock body (28) and a lock cover (29), the lock cover (29) blocks the top of the lock body (28), and a lock part (27) is slidably connected inside the lock body (28) A lock slide (37), both ends of the lock slide (37) pass through the lock body (28), one end of the lock slide (37) close to the chain (17) is connected with a lock tongue (38), the lock tongue (38) passes through the lock body (28), the side of the chain (17) close to the lock portion (27) is connected with a buckle (46), the lock body (28) is inserted into the buckle (46), the lock slide (37) is connected with an unlocking block (40), the unlocking block (40) is tilted on the side close to the lock tongue (38), the bottom of the tilted surface of the unlocking block (40) is tilted toward the direction of the lock tongue (38), an unlocking groove (42) is provided on the lock body (28), the tilted surface of the unlocking block (40) is located in the unlocking groove (42), the side column (20) is connected with a key rod (26), and the key rod (26) is located just above the unlocking groove (42).

2. A linear motor assembly for instantaneous acceleration according to claim 1, characterized in that: The lock tongue (38) is tilted toward one side of the buckle (46), and the bottom of the tilted surface of the lock tongue (38) is tilted in a direction away from the buckle (46). The buckle (46) is tilted toward one side of the lock tongue (38), and the bottom of the tilted surface of the buckle (46) is tilted in a direction close to the lock tongue (38).

3. A linear motor assembly for instantaneous acceleration according to claim 2, characterized in that: The lock slide bar (37) is provided with a connecting block (41), and the connecting block (41) is located on a side of the unlocking block (40) close to the lock tongue (38). The side of the connecting block (41) facing the lock tongue (38) is connected to a reset spring (43), and the end of the reset spring (43) away from the connecting block (41) is connected to a reset rod (44). Both ends of the reset rod (44) are connected to the lock body (28). When the lock tongue (38) is inserted into the clamping groove (49), the reset spring (43) is in a stretched state.

4. A linear motor assembly for instantaneous acceleration according to claim 3, characterized in that: A limiting rod (45) is provided below the reset spring (43).

5. The linear motor assembly for instantaneous acceleration according to claim 1, characterized in that: A lock slide block (35) is provided in the lock body (28), a sliding groove (36) is provided on the lock slide block (35), and the lock slide rod (37) is slidably connected in the sliding groove (36).

6. The linear motor assembly for instantaneous acceleration according to claim 1, characterized in that: Two central columns (21) are provided, and connecting parts (50) are provided on both sides of the lock body (28), and the connecting parts (50) are slidably connected to the central column (21).

7. A linear motor assembly for instantaneous acceleration according to claim 6, characterized in that: A linear bearing (51) is slidably connected to the central column (21), and the linear bearing (51) passes through the connecting portion (50).

8. The linear motor assembly for instantaneous acceleration according to claim 1, characterized in that: A key seat (23) is provided on two side posts (20) away from the chain (17), and the key rod (26) is rotatably connected to the bottom of the key seat (23).

9. The linear motor assembly for instantaneous acceleration according to claim 1, characterized in that: Two bearing seats (6) are provided on the motor seat (2); a first shaft (8) is coaxially connected to the output shaft of the motor; the first shaft (8) is rotatably connected to the bearing seats (6); and the first sprocket (14) is sleeved on the first shaft (8).

10. The linear motor assembly for instantaneous acceleration according to claim 9, characterized in that: A plurality of chain posts (9) are connected to the bearing seat (6), and the sprocket frame (11) is connected to the chain posts (9).

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