Ore crushing and screening device

Abstract

The invention relates to the technical field of crushing hoppers, and discloses an ore crushing and screening device.Housing shells are fixedly mounted on the two sides of a machine shell, a crushing roller assembly is rotationally mounted on the inner wall of the machine shell, and the crushing roller assembly is connected with a driving gear in a meshed mode through an auxiliary gear set; a protection assembly is arranged on the side face of a shaft rod of the driving gear and connected with the output end of the hydraulic motor. The two hydraulic motors drive the driving gears on the two sides to rotate correspondingly, the driving gears drive the auxiliary gear sets on the two sides to rotate, then the smashing roller assemblies in pairs rotate relatively, meanwhile, tooth pieces in the smashing roller assemblies are meshed in a staggered mode, and therefore fine smashing of ore is achieved. The tooth pieces are provided with the deformation holes and the V-shaped grooves, when the two tooth pieces are symmetrically installed, the protruding pieces formed by the deformation holes and the V-shaped grooves can deform, then the tooth pieces can be well suitable for the appearance of the square rod, and the tooth pieces can be tightly and firmly meshed.

Description

Technical Field

[0001] The invention relates to the technical field of crushing buckets, in particular to an ore crushing and screening device. Background Art

[0002] Crusher bucket, also known as crushing bucket or multifunctional crushing and screening bucket, is an auxiliary device installed on construction machinery such as excavators. Crusher bucket crushes and screens materials by shearing, squeezing and impacting materials, so as to meet the requirements of material particle size in different projects. It is widely used in construction engineering, road construction, mining, demolition work, civil engineering, municipal waste treatment, recycling and reuse and other fields.

[0003] Conventional crushing buckets are driven by high-pressure oil provided by hydraulic excavators. The motor drives the eccentric main shaft through the spline shaft, and the eccentric main shaft drives the jaw plate to crush the material. The crushing method of the crushing bucket is a flexural extrusion type, and the movable jaw moves up and down through the eccentric shaft to achieve material crushing. When the jaw plate is stuck by the ore, its driving motor will also provide output power. The strong power will break the output shaft rod, and then the entire crushing bucket will be unusable; at the same time, the jaw plate is an integral shape. Once it is stuck by the ore, the jaw plate will not be able to continue to crush, and some small ores will leak from the gaps between the jaw plates, which will cause the ore to be crushed not fine enough. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides an ore crushing and screening device, which has the advantages of protecting the output shaft and crushing fine stones, thereby solving the above-mentioned problems.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of protecting the output shaft and crushing the rocks into small pieces, the present invention provides the following technical solutions: an ore crushing and screening device, comprising a casing, covers are fixedly installed on both sides of the casing, a top casing is fixedly installed on the top of the casing, a connecting plate is fixedly installed on the top of the top casing, a convex plate is fixedly installed on the inner bottom wall and the inner top wall of the casing through a support plate, a tooth plate is installed on the surface of the convex plate through bolts, a crushing roller assembly is rotatably installed on the inner wall of the casing, the crushing roller assembly is meshed with the driving gear through an auxiliary gear set, a protection assembly is arranged on the side of the shaft of the driving gear, and the protection assembly is connected to the output end of the hydraulic motor.

[0008] Preferably, the crushing roller assembly includes a driving shaft, and the number of the driving shafts is six and they are arranged at equal intervals; the tail end of the driving shaft is fixedly installed with an auxiliary gear, and a square rod is fixedly installed on the outer side of the driving shaft, and two tooth plates are set on the outer side of the square rod, and the two tooth plates are detachably installed by bolts and nuts.

[0009] Preferably, a deformation hole is provided on the surface of the tooth plate, a groove is provided on the side of the tooth plate, a V-shaped groove corresponding to the square rod is provided at one end of the tooth plate away from the groove, and the V-shaped groove is connected to the deformation hole.

[0010] Preferably, the protection component includes a vertical plate, a swivel is rotatably installed inside the vertical plate, limit rings are fixedly installed on both sides of the swivel, a gear shaft is fixedly installed on the side of the swivel, the gear shaft is fixedly installed on the driving gear, a plug-in shaft is inserted into the inside of the swivel, a limit plate is fixedly installed on the side of the plug-in shaft, an output shaft is fixedly installed on the side of the limit plate, and the output shaft is fixedly installed on the output end of the hydraulic motor.

[0011] Preferably, a maintenance hole is opened at the top of the vertical plate, and the top of the vertical plate is slidably mounted on the shielding plate through a guide rail.

[0012] Preferably, the outer wall of the rotating ring is provided with a number of threaded holes, the internal threads of the threaded holes are connected with threaded plugs, a spring is provided on one side of the threaded plug, a T-shaped clamp is fixedly installed on the bottom of the spring, the T-shaped clamp is inserted into a ring plate, and the ring plate is installed at the opening of the threaded hole; the outer side of the plug-in shaft is provided with a clamping groove and an annular groove corresponding to the T-shaped clamp, and the clamping groove and the annular groove are connected to each other.

[0013] Preferably, the number of the auxiliary gear groups is on both sides, distributed symmetrically on the left and right, and the number of each auxiliary gear group is six, arranged at equal intervals; in the auxiliary gear group on the left, the first, third and fifth auxiliary gears are fixedly installed on the drive shaft, and the second, fourth and sixth auxiliary gears are rotatably installed on the outer wall of the casing; in the auxiliary gear group on the right, the second, fourth and sixth auxiliary gears are fixedly installed on the drive shaft, and the first, third and fifth auxiliary gears are rotatably installed on the outer wall of the casing.

[0014] Preferably, the input end of the hydraulic motor is connected to a control valve, and the control valve is controlled in conjunction with a hydraulic system of an external excavator.

[0015] Preferably, a screening mechanism is installed at the rear of the casing, and the screening mechanism consists of a screen, a vibration motor and a screening frame. The screen is installed in the screening frame, and the screen is made of metal meshes of different specifications. The vibration motor is installed on the screening frame, and the screening frame and the casing are elastically connected.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides an ore crushing and screening device, which has the following beneficial effects:

[0018] 1. The ore crushing and screening device drives the driving gears on both sides to rotate respectively through two hydraulic motors, and the driving gears drive the auxiliary gear sets on both sides to rotate, thereby realizing the relative rotation of the crushing roller assemblies in pairs, and at the same time, the teeth in the crushing roller assemblies are staggered and engaged with each other, so as to realize the fine crushing of the ore; and the tooth pieces are provided with deformation holes and V-shaped grooves. When the two tooth pieces are symmetrically installed, the convex pieces formed by the deformation holes and the V-shaped grooves can be deformed, thereby making the tooth pieces well adapted to the shape of the square rod, and making the tooth pieces tightly and firmly engaged.

[0019] 2. In the ore crushing and screening device, the output end of the hydraulic motor drives the output shaft and the splicing shaft to rotate, and the splicing shaft drives the swivel, the gear shaft and the driving gear to rotate synchronously. When the crushing roller assembly is stuck, the T-type clamp will be squeezed and retracted into the threaded hole, and then the swivel and the splicing shaft will slip, thereby ensuring that the gear shaft and the output shaft will not be twisted off by force; when the crushing roller assembly rotates normally, the spring will push the T-type clamp into the slot, and then the swivel and the splicing shaft will be connected again, so that the hydraulic motor can drive the driving gear to rotate again. In this process, the rotating shaft is protected to ensure that the rotating shaft will not break. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure after removing the cover shell and the top shell in the present invention;

[0022] Figure 3 It is a schematic diagram of the cutaway structure in the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the crushing roller assembly, the auxiliary gear set and the hydraulic motor in the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the crushing roller assembly in the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the tooth piece, the bolt and the nut in the present invention;

[0026] Figure 7 It is a schematic diagram of the exploded structure of the convex plate and the tooth plate in the present invention;

[0027] Figure 8It is a schematic diagram of the structure of the driving gear, the protection assembly and the hydraulic motor in the present invention;

[0028] Fig. 9 It is a schematic diagram of the decomposed structure of the protection component in the present invention;

[0029] Fig.10 It is a schematic diagram of the cross-section structure of the protection component in the present invention.

[0030] In the figure: 1, casing; 2, cover; 3, top casing; 4, connecting plate; 5, support plate; 6, convex plate; 7, tooth plate; 8, crushing roller assembly; 9, auxiliary gear set; 10, driving gear; 11, protection assembly; 12, hydraulic motor;

[0031] 81. driving shaft; 82. square rod; 83. tooth plate; 84. bolt and nut; 831. deformation hole; 832. groove; 833. V-shaped groove;

[0032] 111. Vertical plate; 112. Swivel; 113. Limiting ring; 114. Gear shaft; 115. Connecting shaft; 116. Limiting plate; 117. Output shaft; 118. Maintenance hole; 119. Guide rail; 120. Shielding plate; 121. Threaded hole; 122. Threaded plug; 123. Spring; 124. T-type clamp; 125. Clamping groove; 126. Annular groove. DETAILED DESCRIPTION

[0033] 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.

[0034] See also Figure 1-3 and Figure 7 A mineral crushing and screening device includes a casing 1, a cover casing 2 is fixedly installed on both sides of the casing 1, a top casing 3 is fixedly installed on the top of the casing 1, a connecting plate 4 is fixedly installed on the top of the top casing 3, a convex plate 6 is fixedly installed on the inner bottom wall and the inner top wall of the casing 1 through a support plate 5, and a tooth plate 7 is installed on the surface of the convex plate 6 through bolts.

[0035] See also Figure 3-4The inner wall of the housing 1 is rotatably mounted with a crushing roller assembly 8, which is meshed with the driving gear 10 through an auxiliary gear set 9. The auxiliary gear set 9 and the driving gear 10 are both located inside the housing 2 to protect them; a protection assembly 11 is provided on the side of the shaft of the driving gear 10, which is connected to the output end of the hydraulic motor 12, and the input end of the hydraulic motor 12 is connected to the control valve, which is linked to the hydraulic system of the external excavator. The driving gear 10 can be driven to rotate by the hydraulic motor 12, and the driving gear 10 then drives the auxiliary gear set 9 to rotate, and then the crushing roller assembly 8 is rotated.

[0036] See also Figure 1-3 A screening mechanism is installed at the rear of the housing 1. The screening mechanism can screen the ore and grind the ore to ensure that the ore falls out after screening. The screening mechanism consists of a screen, a vibration motor and a screening frame. The screen is installed in the screening frame, and the screen is made of metal meshes of different specifications. The vibration motor is installed on the screening frame, and the screening frame and the housing 1 are elastically connected. The ore crushed by the crushing roller assembly 8 is processed again by the screening mechanism to ensure that the crushed ore particles are of appropriate size.

[0037] See also Figure 4-5 The crushing roller assembly 8 includes a driving shaft 81, and there are six driving shafts 81 arranged at equal intervals; the tail end of the driving shaft 81 is fixedly installed with the auxiliary gear 9, and a square rod 82 is fixedly installed on the outer side of the driving shaft 81, and two tooth plates 83 are set on the outer side of the square rod 82, and the two tooth plates 83 are detachably installed by bolts and nuts 84.

[0038] See also Figure 5-6 The surface of the tooth piece 83 is provided with a deformation hole 831, the side of the tooth piece 83 is provided with a groove 832, and the end of the tooth piece 83 away from the groove 832 is provided with a V-shaped groove 833 corresponding to the square rod 82, and the V-shaped groove 833 is connected with the deformation hole 831. When the tooth piece 83 is installed on the square rod 82, the convex piece formed by the V-shaped groove 833 and the deformation hole 831 can be deformed, so that the tooth piece 83 is conveniently installed on the square rod 82.

[0039] See also Figure 8-10The protection assembly 11 includes a vertical plate 111, a swivel 112 is rotatably mounted inside the vertical plate 111, and limit rings 113 are fixedly mounted on both sides of the swivel 112. A gear shaft 114 is fixedly mounted on the side of the swivel 112, and the gear shaft 114 is fixedly mounted with the driving gear 10. A plug-in shaft 115 is inserted and installed inside the swivel 112, and a limit plate 116 is fixedly mounted on the side of the plug-in shaft 115. An output shaft 117 is fixedly mounted on the side of the limit plate 116, and the output shaft 117 is fixedly mounted with the output end of the hydraulic motor 12. The hydraulic motor 12 can drive the output shaft 117, the plug-in shaft 115, the swivel 112 and the gear shaft 114 to rotate synchronously.

[0040] See also Figure 8-10 A maintenance hole 118 is provided at the top of the vertical plate 111, and the top of the vertical plate 111 is slidably mounted on the shielding plate 120 through a guide rail 119. The shielding plate 120 is pushed open from the side, and the maintenance hole 118 will be opened. The T-type clamp 124 can be maintained by tools, and the pushing force of the T-type clamp 124 can also be adjusted.

[0041] See also Figure 8-10 The outer wall of the rotating ring 112 is provided with a number of threaded holes 121, and the inner thread of the threaded hole 121 is connected with a threaded plug 122. A spring 123 is provided on one side of the threaded plug 122. A T-shaped clamp 124 is fixedly installed at the bottom of the spring 123. The T-shaped clamp 124 is inserted in the ring plate, and the ring plate is installed at the opening of the threaded hole 121. The outer side of the plug shaft 115 is provided with a slot 125 and an annular groove 126 corresponding to the T-shaped clamp 124, and the slot 125 and the annular groove 126 are connected to each other. The spring 123 pushes the T-shaped clamp 124 to insert into the slot 125, ensuring the locking connection between the rotating ring 112 and the plug shaft 115. If the crushing roller assembly 8 is stuck, the rotating plug shaft 115 will squeeze the T-shaped clamp 124 back into the threaded hole 121, and then the rotating ring 112 and the plug shaft 115 will slip, ensuring that the shaft rod will not be twisted off by force.

[0042] See also Figure 3-4 , the number of auxiliary gear sets 9 is on both sides, symmetrically distributed, and each group of auxiliary gear sets 9 has six, arranged at equal intervals; the first, third, and fifth auxiliary gears in the left group of auxiliary gear sets 9 are fixedly installed on the drive shaft 81, and the second, fourth, and sixth auxiliary gears are rotatably installed on the outer wall of the casing 1; the second, fourth, and sixth auxiliary gears in the right group of auxiliary gear sets 9 are fixedly installed on the drive shaft 81, and the first, third, and fifth auxiliary gears are rotatably installed on the outer wall of the casing 1. The driving gear 10 on the left rotates to drive the first, third, and fifth auxiliary gears on the left to rotate, and the driving gear 10 on the right rotates to drive the second, fourth, and sixth auxiliary gears on the right to rotate, thereby ensuring that the two relative drive shafts 81 rotate in coordination with each other, and realizing the bite and crushing of the ore by the tooth pieces 83.

[0043] Working principle: When in use, it is connected to an external hydraulic mechanical arm or an excavator mechanical arm through a connecting plate 4, and the hydraulic pipeline on the mechanical arm is connected to the control valve of the hydraulic motor 12;

[0044] The two hydraulic motors 12 drive the driving gears 10 on both sides to rotate respectively, and the driving gears 10 drive the auxiliary gear sets 9 on both sides to rotate, thereby realizing the relative rotation of the crushing roller assemblies 8 in pairs, and at the same time, the teeth 83 in the crushing roller assemblies 8 are staggered and engaged with each other, thereby realizing fine crushing of the ore;

[0045] The tooth piece 83 is provided with a deformation hole 831 and a V-shaped groove 833. When the two tooth pieces 83 are symmetrically installed, the protrusion formed by the deformation hole 831 and the V-shaped groove 833 can be deformed, thereby allowing the tooth piece 83 to adapt well to the shape of the square rod 82 and allow the tooth piece 83 to bite tightly and firmly.

[0046] On the contrary, the tooth piece 83 can be disassembled by disassembling the bolt and the nut 84 .

[0047] The output end of the hydraulic motor 12 drives the output shaft 117 and the plug shaft 115 to rotate, and the plug shaft 115 drives the swivel 112, the gear shaft 114 and the driving gear 10 to rotate synchronously. When the crushing roller assembly 8 is stuck, the T-shaped clamp 124 is squeezed and retracted into the threaded hole 121, and then the swivel 112 and the plug shaft 115 slip, thereby ensuring that the gear shaft 114 and the output shaft 117 will not be twisted off by force;

[0048] When the crushing roller assembly 8 rotates normally, the spring 123 will push the T-shaped clamp 124 to insert into the clamping groove 125, and then the swivel 112 and the plug-in shaft 115 will be connected again, so that the hydraulic motor 12 can drive the driving gear 10 to rotate again. In this process, the rotating shaft is protected to ensure that the rotating shaft will not break.

[0049] Push the shielding plate 120 sideways and open it, and the maintenance hole 118 will be exposed. The threaded plug 122 can be driven into the threaded hole 121 by a tool, and then the spring 123 is compressed, and the T-shaped clamp 124 will be tightly clamped into the slot 125. In this process, the force of the T-shaped clamp 124 can be controlled and adjusted; conversely, the threaded plug 122 can be driven out of the threaded hole 121 by a tool, and then the spring 123 and the T-shaped clamp 124 can be disassembled and taken out, thereby realizing the maintenance of the T-shaped clamp 124.

[0050] 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. An ore crushing and screening device, comprising a housing (1), characterized in that: A cover shell (2) is fixedly mounted on both sides of the casing (1), a top shell (3) is fixedly mounted on the top of the casing (1), a connecting plate (4) is fixedly mounted on the top of the top shell (3), a convex plate (6) is fixedly mounted on the inner bottom wall and the inner top wall of the casing (1) via a support plate (5), a toothed plate (7) is mounted on the surface of the convex plate (6) via bolts, a crushing roller assembly (8) is rotatably mounted on the inner wall of the casing (1), the crushing roller assembly (8) is meshedly connected with a driving gear (10) via an auxiliary gear set (9), a protection assembly (11) is arranged on the side of the shaft of the driving gear (10), and the protection assembly (11) is connected to the output end of a hydraulic motor (12).

2. The ore crushing and screening device according to claim 1, characterized in that: The crushing roller assembly (8) comprises a driving shaft (81), and the number of the driving shafts (81) is six and they are arranged at equal intervals; the tail end of the driving shaft (81) is fixedly mounted on the auxiliary gear (9), a square rod (82) is fixedly mounted on the outer side of the driving shaft (81), and two tooth plates (83) are sleeved on the outer side of the square rod (82), and the two tooth plates (83) are detachably mounted via bolts and nuts (84).

3. The ore crushing and screening device according to claim 2 is characterized in that: A deformation hole (831) is provided on the surface of the tooth piece (83), a groove (832) is provided on the side of the tooth piece (83), and a V-shaped groove (833) corresponding to the square rod (82) is provided at one end of the tooth piece (83) away from the groove (832), and the V-shaped groove (833) is connected to the deformation hole (831).

4. The ore crushing and screening device according to claim 1, characterized in that: The protection component (11) comprises a vertical plate (111), a rotating ring (112) is rotatably mounted inside the vertical plate (111), limiting rings (113) are fixedly mounted on both sides of the rotating ring (112), a gear shaft (114) is fixedly mounted on the side of the rotating ring (112), the gear shaft (114) is fixedly mounted on the driving gear (10), a plug-in shaft (115) is inserted and mounted inside the rotating ring (112), a limiting plate (116) is fixedly mounted on the side of the plug-in shaft (115), an output shaft (117) is fixedly mounted on the side of the limiting plate (116), and the output shaft (117) is fixedly mounted on the output end of the hydraulic motor (12).

5. The ore crushing and screening device according to claim 4, characterized in that: A maintenance hole (118) is provided at the top of the vertical plate (111), and the top of the vertical plate (111) is slidably mounted on the shielding plate (120) via a guide rail (119).

6. The ore crushing and screening device according to claim 4, characterized in that: The outer wall of the rotating ring (112) is provided with a plurality of threaded holes (121), the inner thread of the threaded hole (121) is connected with a threaded plug (122), a spring (123) is provided on one side of the threaded plug (122), a T-shaped clamp (124) is fixedly installed on the bottom of the spring (123), the T-shaped clamp (124) is inserted into a ring plate, and the ring plate is installed at the opening of the threaded hole (121); the outer side of the plug-in shaft (115) is provided with a clamping groove (125) and an annular groove (126) corresponding to the T-shaped clamp (124), and the clamping groove (125) and the annular groove (126) are communicated with each other.

7. The ore crushing and screening device according to claim 2, characterized in that: The number of the auxiliary gear sets (9) is symmetrically distributed on both sides, and each group of auxiliary gear sets (9) has six auxiliary gear sets, which are arranged at equal intervals; the first, third and fifth auxiliary gears in the left group of auxiliary gear sets (9) are fixedly mounted on the drive shaft (81), and the second, fourth and sixth auxiliary gears are rotatably mounted on the outer wall of the casing (1); the second, fourth and sixth auxiliary gears in the right group of auxiliary gear sets (9) are fixedly mounted on the drive shaft (81), and the first, third and fifth auxiliary gears are rotatably mounted on the outer wall of the casing (1).

8. The ore crushing and screening device according to claim 1, characterized in that: The input end of the hydraulic motor (12) is connected to a control valve, and the control valve is controlled in conjunction with a hydraulic system of an external excavator.

9. The ore crushing and screening device according to claim 1, characterized in that: A screening mechanism is installed at the rear of the casing (1), the screening mechanism comprising a screen, a vibration motor and a screening frame, the screen being installed in the screening frame and being made of metal meshes of different specifications, the vibration motor being installed on the screening frame, and the screening frame and the casing (1) being elastically connected.

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