Swing type grate feeding and screening equipment

Abstract

The invention relates to swing type grate feeding screening equipment, and relates to the technical field of vibration screening equipment.The swing type grate feeding screening equipment comprises a rack and grates arranged between the rack, the multiple grates are symmetrically arranged, the ends of the grates are hinged to the rack, a set of rotating shafts are symmetrically and rotationally arranged on the inner wall of the rack, and the rotating shafts are hinged to the rack. The rotating shafts are connected with eccentric blocks, an eccentric shaft is connected between the eccentric blocks, the length direction of the eccentric shaft is arranged along the width direction of the rack, a motor is arranged on the rack, and a driving shaft of the motor is connected with one of the rotating shafts; a linkage rod is arranged between the eccentric shaft and the grate, the eccentric shaft is sleeved with the linkage rod, the linkage rod is rotationally connected with the eccentric shaft, and the bottom end of the linkage rod is hinged to the bottom wall of the grate. The device has the effects of reducing energy consumption, being easy to seal and prevent dust and prolonging the service life of equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of vibrating screening equipment, and more particularly to a swing type grate feeder screening equipment. Background Art

[0002] At present, a vibrating feeder is a device that transports materials by using machine vibration. It can evenly, regularly, and continuously feed bulk and granular materials from a storage bin to a receiving device. In a sand and gravel production line, it can continuously and evenly feed a crushing machine and conduct a rough screening of the materials. It is widely used in crushing and screening combined equipment in industries such as metallurgy, coal mine, ore dressing, building materials, chemical industry, and abrasive.

[0003] In the related art, most of the designed feeder screening equipment drives the entire screen body to vibrate by using a vibrator, with a relatively large participation weight, high energy consumption, and a relatively large impact load on the foundation. In the design of the dust-proof cover, a rigid full-closed connection cannot be achieved, so there is room for improvement. Summary of the Invention

[0004] In order to reduce energy consumption, facilitate dust-proof sealing, and extend the service life of the equipment, the present application provides a swing type grate feeder screening equipment.

[0005] The swing type grate feeder screening equipment provided by the present application adopts the following technical solutions: A swing type grate feeder screening equipment includes a frame and grates arranged between the frames. A plurality of grates are symmetrically arranged, and the ends of the grates are hinged to the frames. A set of rotating shafts are symmetrically and rotatably arranged on the inner wall of the frame. The rotating shafts are connected with eccentric blocks, and the eccentric blocks are connected with an eccentric shaft. The length direction of the eccentric shaft is arranged along the width direction of the frame. A motor is arranged on the frame, and the driving shaft of the motor is connected with one of the rotating shafts; a linkage rod is arranged between the eccentric shaft and the grate. The linkage rod is sleeved on the eccentric shaft, and the linkage rod is rotatably connected with the eccentric shaft. The bottom end of the linkage rod is hinged to the bottom wall of the grate.

[0006] By adopting the above technical solutions, when the equipment is working, the motor drives one of the rotating shafts to rotate, the rotating shaft drives the eccentric block to rotate, the eccentric block drives the eccentric shaft to continuously rotate, and then the linkage rod is controlled to pull or push one end of the grate away from its rotating connection with the frame, so that the grate swings up and down between the frames. After the ore material falls on the grate, the vibrating and inclined grate continuously screens and transports the ore, realizing the swing feeding of the grate. The vibration source is set on the grate, reducing the vibration of the frame. Thus, the frame is fixed without participating in the vibration, increasing the fatigue life of the frame. Just by the swing of the grate, energy consumption can be reduced, and it is easy to seal and dust-proof the equipment.

[0007] Preferably, a connecting groove is formed in the bottom wall of the grate bar, a group of mounting grooves are symmetrically arranged on the inner wall of the connecting groove, bearings are arranged in the mounting grooves, connecting rods are symmetrically and fixedly arranged on the end wall of the linkage rod, and the connecting rods are connected with the inner rings of the bearings.

[0008] By adopting the above technical solution, when the eccentric shaft rotates to drive the linkage rod to swing, the connecting rod at the top end of the linkage rod rotates with the bearing. The bearing reduces the friction between the connecting rod and the inner wall of the mounting groove, which is beneficial to extending the service life of the connecting rod.

[0009] Preferably, the length direction of the mounting groove is arranged along the thickness direction of the grate bar, a buffer rod is fixedly arranged in the mounting groove, the length direction of the buffer rod is arranged along the length direction of the mounting groove, a buffer block is slidably arranged on the buffer rod, the buffer block is adapted to the mounting groove, the bearing is arranged on the side wall of the buffer block, and a group of buffer springs are symmetrically sleeved on the buffer rod. One of the buffer springs abuts against the bottom wall of the buffer block, and the other buffer spring abuts against the top wall of the buffer block.

[0010] By adopting the above technical solution, when the grate bar swings continuously, it will be subjected to the pressure of the ore above. After the grate bar is stressed, the buffer block slides on the buffer rod. Since the buffer spring abuts against the buffer block, the buffer spring deforms. The buffer spring can buffer when the buffer block is stressed, reducing the damage of the connection between the bearing and the connecting rod, further extending the service life of the equipment. At the same time, the buffer spring gives a certain vibration amplitude to the grate bar during swinging, which is beneficial to vibrating and separating the ore on the grate bar.

[0011] Preferably, adjustment grooves are formed on the opposite surfaces of the eccentric blocks, the length direction of the adjustment grooves is arranged along the length direction of the eccentric blocks, adjustment blocks are slidably arranged in the adjustment grooves, the eccentric shaft is fixedly arranged between the two adjustment blocks, and locking parts are arranged on the eccentric blocks for fixing the adjustment blocks in the adjustment grooves.

[0012] By adopting the above technical solution, by driving the adjustment block to slide in the adjustment groove and using the locking part to fix the position of the adjustment block, the distance between the adjustment block and the axis of the rotating shaft can be changed, and then the distance between the axis of the eccentric shaft and the axis of the rotating shaft can be changed. Changing the position of the eccentric shaft can adjust the swing amplitude of the grate bar. When the eccentric shaft is close to the axis of the rotating shaft, the swing amplitude of the grate bar is small, and when the eccentric shaft is far from the axis of the rotating shaft, the swing amplitude of the grate bar is large. This is beneficial for the equipment to meet different requirements of vibration screening and improve the applicability of the equipment.

[0013] Preferably, the locking member is a locking bolt. A strip-shaped hole is penetratingly provided in the inner wall of the adjustment groove. The locking bolt is slidably arranged in the strip-shaped hole. The locking bolt penetrates through the adjustment block and is slidably connected to the adjustment block. A plurality of locking holes for inserting the locking bolt are provided in the inner wall of the adjustment groove. The locking bolt is threadedly connected to the locking holes.

[0014] By adopting the above technical solution, when the locking bolt is rotated and separated from the locking hole, the locking bolt can be driven to slide in the strip-shaped hole, thereby driving the adjustment block to slide in the adjustment groove. When the locking bolt is flush with the locking hole, slide the locking bolt into the locking hole and rotate the locking bolt to connect and fix the locking bolt and the locking hole. By connecting the locking bolt to different locking holes, the position of the adjustment block in the adjustment groove can be quickly changed, which is convenient to operate and has a good fixing effect on the adjustment block.

[0015] Preferably, a fine screen is arranged between the frames. The fine screen is located below the eccentric shaft. A reciprocating groove is provided in the inner wall of the frame. The length direction of the reciprocating groove is arranged along the length direction of the frame. The fine screen is slidably arranged in the reciprocating groove. A reciprocating component is arranged on the frame. The reciprocating component is used to drive the fine screen to reciprocate and slide in the reciprocating groove.

[0016] By adopting the above technical solution, when the rotating shaft continuously rotates, the reciprocating component drives the fine screen to reciprocate and slide in the reciprocating groove. After the ore falls on the fine screen, the reciprocating and sliding fine screen performs a further screening on the ore to meet different screening requirements.

[0017] Preferably, the reciprocating component includes a contact rod, a contact block, a swing rod and a driving block. The contact rod is connected to a rotating shaft. The contact rod is located outside the frame. The contact block is arranged on the contact rod. The swing rod is rotatably arranged on the outer wall of the frame. A contact groove is provided on the surface of the swing rod. The contact block is slidably arranged in the contact groove. A reciprocating hole is penetratingly provided in the bottom wall of the reciprocating groove. The driving block is arranged on the end wall of the fine screen. The driving block penetrates through the reciprocating hole. A driving groove is provided on the surface of the swing rod. The driving block is slidably arranged in the driving groove.

[0018] By adopting the above technical solution, when the motor drives the rotating shaft and the eccentric shaft to rotate, the rotating shaft drives the contact rod to continuously rotate. When the contact rod rotates, the contact block abuts against the inner wall of the contact groove. The contact block continuously reciprocates and slides in the contact groove, driving the swing rod to reciprocate and swing on the outer wall of the frame, and making the inner wall of the driving groove abut against the driving block, driving the driving block to reciprocate and slide in the reciprocating hole, and further driving the fine screen to reciprocate and slide in the reciprocating groove. There is no need to separately configure a power source to control the sliding of the fine screen, which is convenient and fast to control and saves the production cost of the equipment.

[0019] Preferably, the abutting block and the abutting rod are rotatably connected, and the driving block and the end wall of the fine screen are rotatably connected.

[0020] By adopting the above technical solution, the friction between the abutting rod and the inner wall of the abutting groove, and the friction between the driving block and the inner wall of the driving groove are reduced, which is beneficial to extending the service life of the abutting rod and the driving block.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. By providing a frame, a bar grate, a rotating shaft, an eccentric block, an eccentric shaft, a motor and a linkage rod, when the equipment is working, the motor drives a rotating shaft to rotate, and the rotating shaft drives the eccentric and the eccentric shaft to continuously rotate, so that the linkage rod pulls or pushes one end of the bar grate away from its rotation connection with the frame, causing the bar grate to swing up and down between the frames. After the ore material falls on the bar grate, the vibrating and inclined bar grate continuously screens and transports the ore, realizing the swinging feeding of the bar grate. By setting the vibration source on the bar grate, the vibration of the frame is reduced, so that the frame is fixed without participating in the vibration, and the fatigue life of the frame is increased. Only by the swinging of the bar grate, the energy consumption can be reduced, and it is easy to seal and dust-proof the equipment; 2. By providing an adjustment groove, an adjustment block and a locking member, driving the adjustment block to slide in the adjustment groove and using the locking member to fix the position of the adjustment block can change the distance between the adjustment block and the axis of the rotating shaft, and further change the distance between the axis of the eccentric shaft and the axis of the rotating shaft. Changing the position of the eccentric shaft can adjust the swinging amplitude of the bar grate. When the eccentric shaft is close to the axis of the rotating shaft, the swinging amplitude of the bar grate is small, and when the eccentric shaft is far from the axis of the rotating shaft, the swinging amplitude of the bar grate is large, which is beneficial to the equipment to meet different requirements of vibration screening and improve the applicability of the equipment; 3. By providing a fine screen, a reciprocating groove, an abutting rod, an abutting block, a swinging rod and a driving block, when the motor drives the rotating shaft and the eccentric shaft to rotate, the rotating shaft drives the abutting rod to continuously rotate. When the abutting rod rotates, the abutting block abuts against the inner wall of the abutting groove, and the abutting block continuously reciprocates and slides in the abutting groove, driving the swinging rod to reciprocate and swing on the outer wall of the frame, so that the inner wall of the driving groove abuts against the driving block, driving the driving block to reciprocate and slide in the reciprocating hole, driving the fine screen to reciprocate and slide in the reciprocating groove. After the ore falls on the fine screen, the reciprocating and sliding fine screen further screens the ore to meet different screening requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of a swinging bar grate feeding and screening device provided by an embodiment of the present application.

[0023] Figure 2 is a cross-sectional view of a swinging bar grate feeding and screening device provided by an embodiment of the present application.

[0024] Figure 3Yes Figure 2 An enlarged view of part A in it.

[0025] Figure 4 It is a schematic diagram for showing the connection relationship between the adjusting block and the eccentric block in the embodiment of the present application.

[0026] Figure 5 It is a schematic diagram for showing the reciprocating assembly in the embodiment of the present application.

[0027] Explanation of reference numerals: 1, frame; 11, grate bar; 12, fine screen; 2, rotating shaft; 21, eccentric block; 22, eccentric shaft; 23, motor; 3, linkage rod; 31, connecting rod; 4, connecting groove; 41, mounting groove; 42, bearing; 5, buffer rod; 51, buffer block; 52, buffer spring; 6, adjusting groove; 61, adjusting block; 62, strip hole; 7, locking bolt; 71, locking hole; 8, reciprocating groove; 81, reciprocating hole; 9, reciprocating assembly; 91, abutting rod; 92, abutting block; 93, swing rod; 931, abutting groove; 932, driving groove; 94, driving block. Detailed implementation manners

[0028] The following further Figures 1-5 describes the present application in detail with reference to the

[0029] The embodiment of the present application discloses a swing grate feeder and screening device. Referring to Figure 1 and Figure 2 , its frame 1 and the grate bars 11 arranged between the frames 1, the length direction of the grate bars 11 is arranged along the length direction of the frame 1, several grate bars 11 are symmetrically arranged obliquely, and the highest end of the grate bars 11 is hinged to the frame 1. A set of rotating shafts 2 are symmetrically and rotatably arranged on the inner wall of the frame 1, the length direction of the rotating shafts 2 is arranged along the width direction of the frame 1, an eccentric block 21 is fixedly connected to one end of the rotating shaft 2 located inside the frame 1, an eccentric shaft 22 is connected between the eccentric blocks 21, and the length direction of the eccentric shaft 22 is arranged along the length direction of the rotating shaft 2.

[0030] Referring to Figure 2 and Figure 3, a motor 23 is fixedly arranged on the outer wall of the rack 1 through bolts, and the driving shaft of the motor 23 is connected to one of the rotating shafts 2. A linkage rod 3 is arranged between the eccentric shaft 22 and the grizzly bar 11. The number of the linkage rods 3 corresponds to the number of the grizzly bars 11. The linkage rod 3 is sleeved on the eccentric shaft 22, and the linkage rod 3 is rotatably connected to the eccentric shaft 22. The bottom end of the linkage rod 3 is hinged to the bottom wall of the grizzly bar 11. When the equipment is working, one of the rotating shafts 2 is driven to rotate by the motor 23, the rotating shaft 2 drives the eccentric block 21 to rotate, and the eccentric block 21 drives the eccentric shaft 22 to continuously rotate, so as to control the linkage rod 3 to pull or push the grizzly bar 11, so that one end of the grizzly bar 11 far from its rotating connection with the rack 1 swings up and down between the racks 1. After the ore material falls on the grizzly bar 11, the vibrating and inclined grizzly bar 11 continuously screens and transports the ore, realizing the swing feeding of the grizzly bar 11. By setting the vibration source on the grizzly bar 11, the vibration of the rack 1 is reduced, so that the rack 1 is fixed without participating in the vibration, and the fatigue life of the rack 1 is increased. Only by the swing of the grizzly bar 11, the energy consumption can be reduced, and it is easy to seal and dust-proof the equipment.

[0031] Refer to Figure 2 and Figure 3 , a connecting groove 4 is formed in the bottom wall of the grizzly bar 11. A group of mounting grooves 41 are symmetrically arranged on the inner wall of the connecting groove 4. The length direction of the mounting groove 41 is arranged along the thickness direction of the grizzly bar 11. A bearing 42 is arranged in the mounting groove 41. Connecting rods 31 are symmetrically and fixedly arranged on the end wall of the linkage rod 3, and the connecting rods 31 are highly connected to the inner ring of the bearing 42. When the eccentric shaft 22 rotates to drive the linkage rod 3 to swing, the connecting rod 31 at the top end of the linkage rod 3 rotates with the bearing 42, and the bearing 42 reduces the friction between the connecting rod 31 and the inner wall of the mounting groove 41. A buffer rod 5 is fixedly arranged in the mounting groove 41. The length direction of the buffer rod 5 is arranged along the length direction of the mounting groove 41. A buffer block 51 is slidably arranged on the buffer rod 5. The buffer block 51 is adapted to the mounting groove 41. The bearing 42 is arranged on the side wall of the buffer block 51. A group of buffer springs 52 are symmetrically sleeved on the buffer rod 5. One of the buffer springs 52 abuts against the bottom wall of the buffer block 51, and the other buffer spring 52 abuts against the top wall of the buffer block 51. When the grizzly bar 11 swings continuously, it will be subjected to the pressure of the ore above. After the grizzly bar 11 is stressed, the buffer block 51 slides on the buffer rod 5. Since the buffer spring 52 abuts against the buffer block 51, the buffer spring 52 deforms. The buffer spring 52 can buffer when the buffer block 51 is stressed, reduce the damage of the force at the connection between the bearing 42 and the connecting rod 31, extend the service life of the equipment, and at the same time, the buffer spring 52 gives a certain vibration amplitude to the grizzly bar 11 when it swings, which is beneficial to vibrating and separating the ore on the grizzly bar 11.

[0032] Refer to Figure 3 and Figure 4, an adjustment groove 6 is formed on the opposite surface of the eccentric block 21. The length direction of the adjustment groove 6 is arranged along the length direction of the eccentric block 21. An adjustment block 61 is slidably arranged in the adjustment groove 6, and the eccentric shaft 22 is fixedly arranged between the two adjustment blocks 61. A locking member is arranged on the eccentric block 21. The locking member is a locking bolt 7. A strip-shaped hole 62 is formed through the inner wall of the adjustment groove 6 along its length direction. The locking bolt 7 passes through the strip-shaped hole 62 and the adjustment block 61. The locking bolt 7 is slidably connected with the adjustment block 61. A plurality of locking holes 71 for the locking bolt 7 to be inserted are formed on the inner wall of the adjustment groove 6. The locking bolt 7 is threadedly connected with the locking holes 71. When the locking bolt 7 is rotated and separated from the locking hole 71, the locking bolt can be driven to slide in the strip-shaped hole 62, and then the adjustment block 61 can be driven to slide in the adjustment groove 6. When the locking bolt 7 is flush with the locking hole 71, the locking bolt 7 is slid and inserted into the locking hole 71, and the locking bolt 7 is rotated to connect and fix the locking bolt 7 with the locking hole 71. By connecting the locking bolt 7 with different locking holes 71, the position of the adjustment block 61 in the adjustment groove 6 can be quickly changed, thereby adjusting the distance between the axis of the eccentric shaft 22 and the axis of the rotating shaft 2. Changing the position of the eccentric shaft 22 can adjust the swing amplitude of the grate bar 11. When the eccentric shaft 22 is close to the axis of the rotating shaft 2, the swing amplitude of the grate bar 11 is small, while when the eccentric shaft 22 is far from the axis of the rotating shaft 2, the swing amplitude of the grate bar 11 is large. Therefore, it is beneficial for the equipment to meet the requirements of different vibration screening and improve the applicability of the equipment.

[0033] Refer to Figure 3 and Figure 5, a fine screen 12 is arranged between the racks 1. The fine screen 12 is located below the eccentric shaft 22. A reciprocating groove 8 is formed in the inner wall of the rack 1. The length direction of the reciprocating groove 8 is arranged along the length direction of the rack 1. The fine screen 12 is slidably arranged in the reciprocating groove 8. A reciprocating assembly 9 is arranged on the rack 1. The reciprocating assembly 9 includes a contact rod 91, a contact block 92, a swing rod 93 and a driving block 94. One rotating shaft 2 is connected to the motor 23, and the other rotating shaft 2 is fixedly connected to the contact rod 91. The contact rod 91 is located outside the rack 1. The contact block 92 is rotatably arranged on the side wall of the contact rod 91. The swing rod 93 is rotatably arranged on the outer wall of the rack 1. A contact groove 931 is formed in the surface of the swing rod 93 along its length direction. The contact block 92 is slidably arranged in the contact groove 931. A reciprocating hole 81 is formed through the bottom wall of the reciprocating groove 8. The length direction of the reciprocating hole 81 is arranged along the length direction of the reciprocating groove 8. The driving block 94 is rotatably arranged on the end wall of the fine screen 12. The driving block 94 penetrates through the reciprocating hole 81. A driving groove 932 is formed in the surface of the swing rod 93 along its length direction. The driving block 94 is slidably arranged in the driving groove 932. When the motor 23 drives the rotating shaft 2 and the eccentric shaft 22 to rotate, the rotating shaft 2 drives the contact rod 91 to continuously rotate. When the contact rod 91 rotates, the contact block 92 abuts against the inner wall of the contact groove 931. The contact block 92 continuously reciprocates and slides in the contact groove 931, driving the swing rod 93 to reciprocate on the outer wall of the rack 1. Furthermore, the inner wall of the driving groove 932 abuts against the driving block 94, driving the driving block 94 to reciprocate and slide in the reciprocating hole 81, driving the fine screen 12 to reciprocate and slide in the reciprocating groove 8. After the ore falls on the fine screen 12, the reciprocating and sliding fine screen 12 performs primary screening on the ore to meet different screening requirements, which is convenient and fast and has low cost.

[0034] The implementation principle of a swing type grate feeder screening device in an embodiment of the present application is as follows: When the device is working, the motor 23 drives one of the rotating shafts 2 to rotate. The rotating shaft 2 drives the eccentric block 21 to rotate. The eccentric block 21 drives the eccentric shaft 22 to continuously rotate. Furthermore, the linkage rod 3 is controlled to pull or push the grate 11, so that one end of the grate 11 far from its rotating connection with the rack 1 swings up and down between the racks 1. After the ore material falls on the grate 11, the vibrating and inclined grate 11 continuously screens and transports the ore, realizing the vibrating screening and feeding of the grate 11. By setting the vibration source on the grate 11, the vibration of the rack 1 is reduced. Therefore, the rack 1 is fixed without participating in the vibration, and the fatigue life of the rack 1 is increased. Only by the swing of the grate 11, the energy consumption can be reduced, and it is easy to seal and dust-proof the device.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A swing-type grate feeding and screening device, comprising a frame (1) and grate bars (11) arranged between the frames (1), wherein a plurality of the grate bars (11) are symmetrically arranged, and the ends of the grate bars (11) are hinged to the frames (1), characterized in that: A group of rotating shafts (2) are symmetrically arranged on the inner wall of the frame (1), the rotating shafts (2) are connected to eccentric blocks (21), and eccentric shafts (22) are connected between the eccentric blocks (21). The length direction of the eccentric shafts (22) is arranged along the width direction of the frame (1). A motor (23) is arranged on the frame (1), and the drive shaft of the motor (23) is interconnected with one of the rotating shafts (2); a linkage rod (3) is arranged between the eccentric shaft (22) and the grate bar (11), the linkage rod (3) is sleeved on the eccentric shaft (22), the linkage rod (3) is rotatably connected to the eccentric shaft (22), and the bottom end of the linkage rod (3) is hinged to the bottom wall of the grate bar (11).

2. The swing-type grate feeding and screening equipment according to claim 1 is characterized in that: A connecting groove (4) is provided on the bottom wall of the grate bar (11), a group of mounting grooves (41) are symmetrically provided on the inner wall of the connecting groove (4), a bearing (42) is provided in the mounting groove (41), and a connecting rod (31) is symmetrically fixedly provided on the end wall of the linkage rod (3), and the connecting rod (31) is connected to the inner ring of the bearing (42) with each other.

3. The swing-type grate feeding and screening equipment according to claim 2 is characterized in that: The length direction of the mounting groove (41) is arranged along the thickness direction of the grate bar (11); a buffer rod (5) is fixedly arranged in the mounting groove (41); the length direction of the buffer rod (5) is arranged along the length direction of the mounting groove (41); a buffer block (51) is slidably arranged on the buffer rod (5); the buffer block (51) and the mounting groove (41) are adapted to each other; the bearing (42) is arranged on the side wall of the buffer block (51); a group of buffer springs (52) are symmetrically sleeved on the buffer rod (5); one of the buffer springs (52) is against the bottom wall of the buffer block (51), and the other buffer spring (52) is against the top wall of the buffer block (51).

4. The swing-type grate feeding and screening equipment according to claim 1 is characterized in that: An adjustment groove (6) is provided on the opposite surface of the eccentric block (21), the length direction of the adjustment groove (6) is arranged along the length direction of the eccentric block (21), an adjustment block (61) is slidably arranged in the adjustment groove (6), the eccentric shaft (22) is fixedly arranged between the two adjustment blocks (61), and a locking member is arranged on the eccentric block (21), and the locking member is used to fix the adjustment block (61) in the adjustment groove (6).

5. The swing-type grate feeding and screening equipment according to claim 4 is characterized in that: The locking member is a locking bolt (7); a strip hole (62) is provided through the inner wall of the adjusting groove (6); the locking bolt (7) is slidably arranged in the strip hole (62); the locking bolt (7) passes through the adjusting block (61) and is slidably connected to the adjusting block (61); a plurality of locking holes (71) for inserting the locking bolt (7) are provided on the inner wall of the adjusting groove (6); and the locking bolt (7) is threadedly connected to the locking holes (71).

6. The swing-type grate feeding and screening equipment according to claim 1, characterized in that: A fine screen (12) is arranged between the frames (1), the fine screen (12) is located below the eccentric shaft (22), a reciprocating groove (8) is provided on the inner wall of the frame (1), the length direction of the reciprocating groove (8) is arranged along the length direction of the frame (1), the fine screen (12) is slidably arranged in the reciprocating groove (8), and a reciprocating assembly (9) is arranged on the frame (1), and the reciprocating assembly (9) is used to drive the fine screen (12) to slide back and forth in the reciprocating groove (8).

7. The swing-type grate feeding and screening equipment according to claim 6 is characterized in that: The reciprocating assembly (9) comprises an abutting rod (91), an abutting block (92), a swinging rod (93) and a driving block (94); the abutting rod (91) is connected to a rotating shaft (2); the abutting rod (91) is located outside the frame (1); the abutting block (92) is arranged on the abutting rod (91); the swinging rod (93) is rotatably arranged on the outer wall of the frame (1); abutting groove (931) is provided on the surface of the swinging rod (93); the abutting block (92) is slidably arranged in the abutting groove (931); a reciprocating hole (81) is penetrated through the bottom wall of the reciprocating groove (8); the driving block (94) is arranged on the end wall of the fine screen (12); the driving block (94) penetrates the reciprocating hole (81); a driving groove (932) is provided on the surface of the swinging rod (93); the driving block (94) is slidably arranged in the driving groove (932).

8. The swing-type grate feeding and screening equipment according to claim 7 is characterized in that: The abutment block (92) is rotatably connected to the abutment rod (91), and the driving block (94) is rotatably connected to the end wall of the fine screen (12).

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