Vibrating device of engineering machinery feeder

Abstract

The invention discloses a vibrating device of an engineering machinery feeder, and relates to the technical field of vibrating devices.The vibrating device of the engineering machinery feeder comprises a base, the vibrating device is arranged at the top of the base, and the vibrating device comprises a reset supporting rod, a reset spring and a triangular supporting frame; the reset supporting rod is fixedly installed on the top of the base, the triangular supporting frame is fixedly installed on the top of the reset supporting rod, the reset spring is arranged between the triangular supporting frame and the base, the baffles are fixedly installed on the surface of the triangular supporting frame, and the discharging plate is fixedly installed between the baffles. The servo motor is fixedly installed on the surface of the baffle, the lead screw rotationally penetrates through the baffle, the transmission rod is driven to reset through reset of the third spring, the transmission rod can move in the direction away from the servo motor when reset, follow-up material machining is facilitated, manual material operation is not needed, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of vibrating devices, in particular to a vibrating device for a feeder of an engineering machinery. Background Art

[0002] A feeder vibrator is usually an engineering mechanical device used to process granular materials. Its function is to evenly distribute or compact the granular materials by vibration or ramming for subsequent processing or use.

[0003] The patent with patent announcement number CN215618770U relates to a vibrating device, which includes: an identification mechanism; a vibrating mechanism for vibrating a material to be vibrated, the vibrating mechanism is movably arranged along a first direction relative to the identification mechanism, the identification mechanism is located above the vibrating mechanism, the vibrating mechanism includes a casting mold having a first cavity and a vibrator arranged in the casting mold, the identification mechanism is used to obtain the level of the casting mold and the material to be vibrated located in the first cavity, the control system identification mechanism and the vibrating mechanism are both connected to the control system, the control system controls the level of the casting mold or the height of the casting mold in the vertical direction according to the information fed back by the identification mechanism, in the technical solution of this patent, the vibrating device can automatically identify the level of the vibrating mechanism and the level of the material to be vibrated used to form a component, and the identification error is small, thereby improving the component qualification rate.

[0004] In the above patent, the vibrating device can automatically identify the horizontality of the vibrating mechanism and the horizontality of the material to be vibrated for forming the component, and the identification error is small, thereby improving the component qualification rate. However, when the material is only fed by the vibrating device, the workload of the vibrating device is too large, which may lead to the failure to meet the required vibration requirements, affecting subsequent processing and reducing work efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a vibrating device for a feeder of an engineering machinery, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A vibrating device for a feeder of an engineering machinery, comprising a base, a discharging device, a pretreatment device and a feeding device are arranged on the top of the base; The discharging device includes: a vibrating device, a baffle, a discharging plate, a transmission rod, a hollow box, a ramp block, a transmission block, a servo motor, a screw and an eccentric shaft. The vibrating device is arranged on the top of the base. The vibrating device includes: a reset support rod, a reset spring and a triangular support frame. The reset support rod is fixedly installed on the top of the base, the triangular support frame is fixedly installed on the top of the reset support rod, the reset spring is arranged between the triangular support frame and the base, the baffle is fixedly installed on the surface of the triangular support frame, the discharging plate is fixedly installed between the baffles, the servo motor is fixedly installed on the surface of the baffle, the screw rotates and passes through between the baffles, and the screw is fixed Installed at the output end of the servo motor, the eccentric shaft is fixedly installed on the circumferential surface of the screw rod, the hollow box is fixedly installed on the side facing the baffle, one end of the transmission rod slides through the surface of the hollow box, the other end of the transmission rod is slidably installed on the surface of the baffle, a vibration plate is fixedly installed on the circumferential surface of the transmission rod, the inclined block is slidably installed on the inner wall of the hollow box, the transmission block is fixedly installed on the end of the screw rod away from the servo motor, the transmission rod is reset by the reset of the No. 3 spring, and the reset of the transmission rod will move in the direction away from the servo motor, so that when the vibration device is working, it will drive the transmission rod to move back and forth, and the reciprocating movement of the transmission rod will drive the vibration plate to move.

[0007] According to the above technical solution, a No. 1 spring is arranged between the hollow box and the ramp block, the ramp block is in contact with the transmission block, and the No. 1 spring drives the ramp block to reset.

[0008] According to the above technical solution, the side of the transmission block in contact with the ramp block is set as an arc surface, and a No. 3 spring is arranged between the end of the screw rod close to the servo motor and the baffle, and the No. 3 spring drives the screw rod to reset.

[0009] According to the above technical scheme, the pretreatment device includes: a support seat, an outer shell, a top cover, a discharge pipe, a screen, an inclined plate, an electric push rod, a clamp, a crushed material block, a discharge port, a filter screen and an inclined plate. The support seat is fixedly installed on the top of the base, the outer shell is fixedly installed on the top of the support seat, the top cover is fixedly installed on the top of the outer shell, a feed port is opened on the surface of the top cover, the discharge pipe is fixedly installed on the outer wall of the outer shell, the screen is slidably installed on the inner wall of the outer shell, the inclined plate is fixedly installed on the inner wall of the outer shell, the filter screen is fixedly installed on the inner wall of the outer shell, the inclined plate is fixedly installed on the inner wall of the outer shell, the discharge port is fixedly installed on the surface of the outer shell, the electric push rod is fixedly installed on the surface of the outer shell, the output end of the electric push rod passes through the inner and outer walls of the outer shell, the clamp is slidably installed on the output end of the electric push rod, the crushed material block is fixedly installed on the surface of the clamp, the reciprocating movement of the output end of the electric push rod will drive the clamp to move back and forth, the reciprocating movement of the clamp will drive the crushed material block to move back and forth, the reciprocating movement of the clamp and the crushed material block will crush the material on the top of the filter screen, and the crushed material will pass through the filter screen.

[0010] According to the above technical solution, the pretreatment device also includes: a sliding rod, a fixed block, an arc rod and an L-shaped rod. The sliding rod is fixedly installed on the surface of the splint, the fixed block is fixedly installed on the inner wall of the shell, the arc rod is rotatably installed on the surface of the fixed block, and the L-shaped rod is fixedly installed on the bottom of the fixed block. The arc rod is blocked by the L-shaped rod, so that the arc rod cannot rotate to the bottom. The movement of the sliding rod will be affected by the arc rod and move toward the top, and the movement of the sliding rod will drive the splint to move.

[0011] According to the above technical solution, the sliding rod is in contact with the fixed block, and a spring is provided between the arc rod and the fixed block, and the arc rod is driven to reset by the spring.

[0012] According to the above technical scheme, the feeding device includes: a support plate, a steel cable, a material baffle plate, a steel rope and a dredging plate, the support plate is fixedly mounted on the inner wall of the outer shell, the material baffle plate is slidably mounted on the bottom of the top cover, one end of the steel cable is fixedly mounted on the top of the screen, the other end of the steel cable is fixedly mounted on the surface of the material baffle plate, the dredging plate is rotatably mounted on the inner wall of the outer shell, one end of the steel cable is fixedly mounted on the surface of the material baffle plate, the other end of the steel cable is fixedly mounted on the surface of the dredging plate, the movement of the material baffle plate will drive the movement of the steel cable, the movement of the steel cable will drive the rotation of the dredging plate, and the rotation of the dredging plate will dredge the accumulated materials.

[0013] According to the above technical solution, a No. 2 spring is arranged between the support plate and the screen, and a fixing piece is arranged at the bottom of the top cover, and the screen is reset by the No. 2 spring.

[0014] The present invention provides a vibrating device for a feeder of an engineering machinery, which has the following beneficial effects:

[0015] The invention drives the eccentric shaft to rotate through a motor, and the rotation of the eccentric shaft drives the vibrating device to vibrate. After the material is vibrated, it will be dispersed and spread on the top of the discharge plate, which is convenient for subsequent processing of the material. There is no need for manual operation of the material, which improves work efficiency. The transmission block is pushed to move by the inclined block, and the transmission block drives the lead screw to move back and forth, and the lead screw drives the vibration rod to move, so as to prevent the vibrating device from having too much workload to load the material alone, which will lead to the failure to meet the required vibration requirements, thereby affecting subsequent processing, thereby improving the reliability of the device.

[0016] This invention separates too small materials through the filter screen, and oversized materials are crushed by the clamping plate and the crushing blocks. Then the materials slide to the top of the discharge plate through the discharge port, and materials of different sizes are classified and crushed to prevent oversized materials from affecting subsequent processing and vibration, thereby improving the practicality and reliability of the device. The sliding rod is driven to move toward the top by the arc rod, and the sliding rod drives the clamping plate to move toward the top to prevent the clamping plate from moving and driving the material when it moves in the opposite direction, resulting in the material being unable to be crushed and being stuck on the top of the filter screen for a long time and unable to be processed, thereby improving the stability of the device operation.

[0017] The invention drives the steel cable to move by moving the filter toward the bottom, and the lever drives the baffle plate to move. The movement of the baffle plate will block the feed port, so that when too much material is accumulated, the feed port will be blocked and the size of the feed port and the feed speed will be controlled according to the amount of accumulated material, to prevent blockage caused by excessive accumulation of material so that the filter cannot classify the material, thereby improving the stability of the device operation. The steel cable drives the dredging plate to rotate, and the rotation of the dredging plate will dredge the accumulated material. The material can be dredged when it is blocked, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the position relationship between the screw rod and the eccentric shaft of the present invention;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the hollow box of the present invention;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the housing of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the pretreatment device of the present invention;

[0023] Figure 6 This is a schematic diagram of the positional relationship between the fixed block and the arc rod of the present invention;

[0024] Figure 7 It is a schematic structural diagram of the feeding device of the present invention.

[0025] In the figure: 1. base; 21. vibrating device; 22. baffle; 23. discharge plate; 24. transmission rod; 25. hollow box; 26. inclined block; 27. transmission block; 28. spring No. 1; 29. ​​servo motor; 210. screw rod; 211. eccentric shaft; 31. support seat; 32. shell; 33. top cover; 34. discharge pipe; 35. screen; 36. inclined plate; 37. electric push rod; 38. clamping plate; 39. crushed material block; 310. discharge port; 311. sliding rod; 312. fixed block; 313. arc rod; 314. L-shaped rod; 315. filter screen; 316. inclined panel; 41. support plate; 42. spring No. 2; 43. steel cable; 44. baffle plate; 45. steel cable; 46. dredging plate. DETAILED DESCRIPTION

[0026] The following will be combined with the 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 described embodiments 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 without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 7An embodiment of the present invention is as follows: a vibrating device for a feeder of an engineering machinery comprises a base 1, a discharging device is arranged on the top of the base 1, the discharging device comprises: a vibrating device 21, a baffle 22, a discharging plate 23, a transmission rod 24, a hollow box 25, a ramp block 26, a transmission block 27, a servo motor 29, a screw 210 and an eccentric shaft 211, the vibrating device 21 is arranged on the top of the base 1, the vibrating device 21 comprises: a reset support rod, a reset spring and a triangular support frame, the reset support rod is fixedly mounted on the top of the base 1, the triangular support frame is fixedly mounted on the top of the reset support rod, the reset spring is arranged between the triangular support frame and the base 1, the baffle 22 is fixedly mounted on the surface of the triangular support frame, the discharging plate 23 is fixedly mounted between the baffles 22, the servo motor 29 is fixedly mounted on the surface of the baffles 22, the screw 210 rotates and passes through between the baffles 22, the screw 21 0 is fixedly mounted on the output end of the servo motor 29, and the eccentric shaft 211 is fixedly mounted on the circumferential surface of the screw rod 210. After the material is vibrated, it will be dispersed and spread on the top of the discharge plate 23, which is convenient for subsequent processing of the material. There is no need for manual operation of the material, which improves work efficiency. The hollow box 25 is fixedly mounted on the opposite side of the baffle 22, and one end of the transmission rod 24 slides through the surface of the hollow box 25, and the other end of the transmission rod 24 is slidably mounted on the surface of the baffle 22. A vibration plate is fixedly mounted on the circumferential surface of the transmission rod 24, and the inclined block 26 is slidably mounted on the inner wall of the hollow box 25. The transmission block 27 is fixedly mounted on the end of the screw rod 210 away from the servo motor 29 to prevent the vibration device 21 from being too large when the material is fed only by the vibration device 21, resulting in the failure to meet the required vibration requirements, thereby affecting subsequent processing and improving the reliability of the device.

[0028] A No. 1 spring 28 is provided between the hollow box 25 and the ramp block 26 . The ramp block 26 is in contact with the transmission block 27 , and the No. 1 spring 28 drives the ramp block 26 to reset.

[0029] The side of the transmission block 27 that contacts the inclined surface block 26 is set as an arc surface, and a No. 3 spring is arranged between the end of the screw rod 210 close to the servo motor 29 and the baffle 22, and the screw rod 210 is driven to reset by the No. 3 spring.

[0030] When the present embodiment is working, the servo motor 29 is started, and the rotation of the output end of the servo motor 29 drives the screw rod 210 to rotate, and the rotation of the screw rod 210 drives the eccentric shaft 211 to rotate, and the rotation of the eccentric shaft 211 drives the vibrating device 21 to shake, and the shaking of the vibrating device 21 drives the baffle plate 22 to vibrate, and the vibration of the baffle plate 22 drives the discharge plate 23 to vibrate, and the vibration of the discharge plate 23 drives the material on the top of the discharge plate 23 to vibrate, and the material will be dispersed and spread on the top of the discharge plate 23 after being vibrated, so as to facilitate the subsequent processing of the material, and there is no need for manual operation of the material, so as to improve the work efficiency, and the shaking of the baffle plate 22 drives the inclined surface block 26 to move up and down, and when the inclined surface block 26 moves to the bottom, the inclined surface block 26 moves to contact the transmission block 27, and the movement of the inclined surface block 26 drives the transmission block 27 to The servo motor 29 moves in the direction of the transmission block 27, which will drive the transmission rod 24 to move. When the inclined block 26 moves to the top, the inclined block 26 no longer contacts the transmission block 27. After the inclined block 26 no longer contacts the transmission block 27, the transmission rod 24 is reset by the No. 3 spring, which drives the transmission rod 24 to reset. The reset of the transmission rod 24 will move in the direction away from the servo motor 29, so that when the vibrating device 21 is working, it will drive the transmission rod 24 to move back and forth. The reciprocating movement of the transmission rod 24 will drive the vibration plate to move. The reciprocating movement of the vibration plate will spread the material on the top of the discharge plate 23, preventing the vibration device 21 from having too much workload to fail to meet the required vibration requirements when the material is only fed by the vibration device 21, thereby affecting subsequent processing and improving the reliability of the device.

[0031] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, a pre-processing device and a feeding device are arranged on the top of the base 1; wherein the pre-processing device comprises: a support seat 31, a shell 32, a top cover 33, a discharge pipe 34, a screen 35, an inclined plate 36, an electric push rod 37, a clamping plate 38, a crushed material block 39, a discharge port 310, a filter screen 315 and an inclined plate 316, the support seat 31 is fixedly mounted on the top of the base 1, the shell 32 is fixedly mounted on the top of the support seat 31, the top cover 33 is fixedly mounted on the top of the shell 32, a feed port is opened on the surface of the top cover 33, the discharge pipe 34 is fixedly mounted on the outer wall of the shell 32, the screen 35 is slidably mounted on the inner wall of the shell 32, and the inclined plate 36 is fixedly mounted on the outer The inner wall of the shell 32, the filter screen 315 is fixedly installed on the inner wall of the shell 32, the inclined plate 316 is fixedly installed on the inner wall of the shell 32, the discharge port 310 is fixedly installed on the surface of the shell 32, the electric push rod 37 is fixedly installed on the surface of the shell 32, the output end of the electric push rod 37 passes through the inner and outer walls of the shell 32, the clamping plate 38 is slidably installed on the output end of the electric push rod 37, and the crushing block 39 is fixedly installed on the surface of the clamping plate 38. Oversized materials are crushed by the clamping plate 38 and the crushing block 39, and then the materials slide to the top of the discharge plate 23 along the discharge port 310, so that materials of different sizes can be classified and crushed, preventing oversized materials from affecting subsequent processing and vibration, thereby improving the practicability and reliability of the device.

[0032] The pretreatment device also includes: a sliding rod 311, a fixed block 312, an arc rod 313 and an L-shaped rod 314. The sliding rod 311 is fixedly installed on the surface of the clamping plate 38, the fixed block 312 is fixedly installed on the inner wall of the shell 32, the arc rod 313 is rotatably installed on the surface of the fixed block 312, and the L-shaped rod 314 is fixedly installed on the bottom of the fixed block 312, so that when the clamping plate 38 moves in the direction of the electric push rod 37, it will not contact the material, preventing the clamping plate 38 from moving the material when it moves in the opposite direction, causing the material to be unable to be crushed and stuck on the top of the filter screen 315 for a long time and unable to be processed, thereby improving the stability of the device operation.

[0033] The sliding rod 311 is in contact with the fixing block 312 , and a spring is provided between the arc rod 313 and the fixing block 312 , and the arc rod 313 is driven to reset by the spring.

[0034] The feeding device includes: a support plate 41, a steel cable 43, a material baffle plate 44, a steel rope 45 and a dredging plate 46. The support plate 41 is fixedly mounted on the inner wall of the outer shell 32, the material baffle plate 44 is slidably mounted on the bottom of the top cover 33, and one end of the steel cable 43 is fixedly mounted on the top of the screen 35, so that when too much material is accumulated, the feed port will be blocked and the size of the feed port and the feeding speed will be controlled according to the amount of material accumulation, so as to prevent the screen 35 from being unable to classify the material due to excessive accumulation of materials, thereby improving the stability of the device operation, the other end of the steel cable 43 is fixedly mounted on the surface of the material baffle plate 44, and the dredging plate 46 is rotatably mounted on the inner wall of the outer shell 32, one end of the steel cable 45 is fixedly mounted on the surface of the material baffle plate 44, and the other end of the steel cable 45 is fixedly mounted on the surface of the dredging plate 46, so that the material can be dredged when the material is blocked, thereby improving the practicality of the device.

[0035] A No. 2 spring 42 is provided between the support plate 41 and the screen 35 , and a fixing piece is provided at the bottom of the top cover 33 , and the No. 2 spring 42 drives the screen 35 to reset.

[0036] When this embodiment is working, the material is poured into the feed port, the material will slide on the surface of the screen 35, the material that is too small will pass through the screen 35, and then flow to the discharge pipe 34 along the inclined plate 36, and the material that cannot pass through the screen 35 will slide along the screen 35 and fall to the top of the filter 315, the reciprocating movement of the output end of the electric push rod 37 will drive the clamping plate 38 to move back and forth, the reciprocating movement of the clamping plate 38 will drive the crushing block 39 to move back and forth, the reciprocating movement of the clamping plate 38 and the crushing block 39 will crush the material on the top of the filter 315, and the crushed material will pass through the filter 315 and fall into the top of the inclined plate 316 together with the material that is too small in the discharge pipe 34, and then slide along the inclined plate 316 to the discharge port 310, and then fall into the top of the discharge plate 23, which will classify and crush materials of different sizes. The movement of the sliding rod 311 will be affected by the arc rod 313 and move toward the top. The movement of the sliding rod 311 will drive the splint 38 to move, so that when the splint 38 moves toward the direction of the electric push rod 37, it will not contact the material, preventing the splint 38 from moving and driving the material when it moves in the opposite direction, resulting in the material being unable to be crushed and being stuck on the top of the filter screen 315 for a long time and unable to be processed, thereby improving the stability of the device operation.

[0037] When too much material is accumulated on the top of the screen 35, the screen 35 will move to the bottom due to the increase in weight, and the movement of the screen 35 will drive the steel cable 43 to move to the bottom, and the movement of the steel cable 43 will drive the material baffle plate 44 to move, and the movement of the material baffle plate 44 will block the feed port, so that when too much material is accumulated, the feed port will be blocked and the size of the feed port and the feeding speed will be controlled according to the amount of accumulated material, so as to prevent the screen 35 from being unable to classify the material due to excessive accumulation of material, thereby improving the stability of the operation of the device, and the movement of the material baffle plate 44 will drive the steel cable 45 to move, and the movement of the steel cable 45 will drive the dredging plate 46 to rotate, and the rotation of the dredging plate 46 will dredge the accumulated material, and the material can be dredged when it is blocked, thereby improving the practicability of the device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibrating device for a feeder of an engineering machinery, comprising a base (1), characterized in that: A discharging device, a pre-treatment device and a feeding device are arranged on the top of the base (1); The discharge device comprises: a vibrating device (21), a baffle (22), a discharge plate (23), a transmission rod (24), a hollow box (25), a ramp block (26), a transmission block (27), a servo motor (29), a screw rod (210) and an eccentric shaft (211); the vibrating device (21) is arranged on the top of the base (1); the vibrating device (21) comprises: a reset support rod, a reset spring and a triangular support frame; the reset support rod is fixedly mounted on the top of the base (1); the triangular support frame is fixedly mounted on the top of the reset support rod; the reset spring is arranged between the triangular support frame and the base (1); the baffle (22) is fixedly mounted on the surface of the triangular support frame; the discharge plate (23) is fixedly mounted between the baffle (22); the servo motor ( 29) is fixedly mounted on the surface of the baffle (22), the screw rod (210) rotates and passes through the baffle (22), the screw rod (210) is fixedly mounted on the output end of the servo motor (29), the eccentric shaft (211) is fixedly mounted on the circumferential surface of the screw rod (210), the hollow box (25) is fixedly mounted on the opposite side of the baffle (22), one end of the transmission rod (24) slides and passes through the surface of the hollow box (25), the other end of the transmission rod (24) is slidably mounted on the surface of the baffle (22), a vibration plate is fixedly mounted on the circumferential surface of the transmission rod (24), the inclined block (26) is slidably mounted on the inner wall of the hollow box (25), and the transmission block (27) is fixedly mounted on the end of the screw rod (210) away from the servo motor (29).

2. The vibrating device for feeder of construction machinery according to claim 1, characterized in that: A first spring (28) is provided between the hollow box (25) and the inclined surface block (26), and the inclined surface block (26) is in contact with the transmission block (27).

3. The vibrating device for a feeder of an engineering machinery according to claim 2, characterized in that: The surface of the transmission block (27) that contacts the inclined surface block (26) is configured as an arc surface, and a No. 3 spring is provided between the end of the lead screw (210) close to the servo motor (29) and the baffle (22).

4. The vibrating device for feeder of construction machinery according to claim 3, characterized in that: The pretreatment device comprises: a support seat (31), an outer shell (32), a top cover (33), a discharge pipe (34), a screen (35), an inclined plate (36), an electric push rod (37), a clamping plate (38), a crushed material block (39), a discharge port (310), a filter screen (315) and an inclined plate (316), wherein the support seat (31) is fixedly mounted on the top of the base (1), the outer shell (32) is fixedly mounted on the top of the support seat (31), the top cover (33) is fixedly mounted on the top of the outer shell (32), a feed port is provided on the surface of the top cover (33), the discharge pipe (34) is fixedly mounted on the outer wall of the outer shell (32), and the screen The net (35) is slidably mounted on the inner wall of the shell (32), the inclined plate (36) is fixedly mounted on the inner wall of the shell (32), the filter net (315) is fixedly mounted on the inner wall of the shell (32), the inclined plate (316) is fixedly mounted on the inner wall of the shell (32), the discharge port (310) is fixedly mounted on the surface of the shell (32), the electric push rod (37) is fixedly mounted on the surface of the shell (32), the output end of the electric push rod (37) penetrates the inner and outer walls of the shell (32), the clamping plate (38) is slidably mounted on the output end of the electric push rod (37), and the crushed material block (39) is fixedly mounted on the surface of the clamping plate (38).

5. The vibrating device for feeder of construction machinery according to claim 4, characterized in that: The pretreatment device further comprises: a sliding rod (311), a fixed block (312), an arc-shaped rod (313) and an L-shaped rod (314); the sliding rod (311) is fixedly mounted on the surface of the clamping plate (38); the fixed block (312) is fixedly mounted on the inner wall of the housing (32); the arc-shaped rod (313) is rotatably mounted on the surface of the fixed block (312); and the L-shaped rod (314) is fixedly mounted on the bottom of the fixed block (312).

6. The vibrating device for a feeder of an engineering machinery according to claim 5, characterized in that: The sliding rod (311) is in contact with the fixed block (312), and a spring is provided between the arc rod (313) and the fixed block (312).

7. The vibrating device for feeder of construction machinery according to claim 6, characterized in that: The feeding device comprises: a support plate (41), a steel cable (43), a material baffle plate (44), a steel cable (45) and a dredging plate (46), wherein the support plate (41) is fixedly mounted on the inner wall of the outer shell (32), the material baffle plate (44) is slidably mounted on the bottom of the top cover (33), one end of the steel cable (43) is fixedly mounted on the top of the screen (35), the other end of the steel cable (43) is fixedly mounted on the surface of the material baffle plate (44), the dredging plate (46) is rotatably mounted on the inner wall of the outer shell (32), one end of the steel cable (45) is fixedly mounted on the surface of the material baffle plate (44), and the other end of the steel cable (45) is fixedly mounted on the surface of the dredging plate (46).

8. The vibrating device for feeder of construction machinery according to claim 7, characterized in that: A No. 2 spring (42) is provided between the support plate (41) and the screen (35), and a fixing piece is provided at the bottom of the top cover (33).

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