Traffic road construction stone crushing device with screening structure

Abstract

The traffic road construction stone crushing device with the screening structure comprises a front pretreatment mechanism and a refining screening mechanism spliced with the front pretreatment mechanism, and crushing / grinding mechanisms are arranged at the longitudinal output end and the transverse output end of the refining screening mechanism correspondingly. The front pretreatment mechanism is arranged in an integrated box body in an integrated mode, the refining and screening mechanism and the crushing / grinding mechanism are arranged in the integrated box body in an integrated mode, and a guide conveying belt is arranged between the refining and screening mechanism and the crushing / grinding mechanism; horizontal pouring grooves are fixedly formed in the transverse position and the longitudinal position, where the crushing / grinding mechanism is located, of the integrated box body, the pouring grooves extend to the outer side of the integrated box body, the front pretreatment mechanism comprises a pretreatment bin, and a guide platform is arranged at the inlet position of the pretreatment bin; and a first guide conveying belt is arranged at the inlet position of the pretreatment bin.

Description

Technical Field

[0001] The invention belongs to the field of engineering technology, and in particular relates to a stone crushing device with a screening structure for traffic road construction. Background Art

[0002] In the process of traffic road construction, it is necessary to use stone crushing equipment to crush the stone raw materials. Controlling the size and shape of the solids through crushing is conducive to the efficient use of the solids, especially in the foundation laying stage of traffic road construction, which is crucial for the stable support of the roadbed.

[0003] The prior art discloses a Chinese patent application with application publication number CN115364942A, which discloses a stone crushing device and crushing method for highway construction, including a base, a connecting rod is arranged on the base, the top of the connecting rod is connected to a support plate, the support plate is connected to a crushing box through a vertical plate, a crushing assembly is arranged in the crushing box, a mobile shell is movably connected to the bottom of the crushing box, a shaking assembly for driving the mobile shell to shake is arranged on the crushing box, the shaking assembly is connected to the crushing assembly, a lifting assembly for driving the mobile shell to rise and fall is arranged on the base, an elastic connecting bucket is arranged at one end of the mobile shell away from the crushing box, the bottom of the elastic connecting bucket passes through the support plate and is connected to two discharge pipes, the two discharge pipes are slidingly arranged with the support plate, thereby ensuring the discharge efficiency of crushed stone and avoiding the problem of equipment failure.

[0004] The above-mentioned prior art can achieve the crushing effect when crushing stones, but cannot achieve the screening of stones. If screening is to be achieved, it is necessary to screen through a screening device and then pour the material again before crushing, which is time-consuming.

[0005] Although the above-mentioned prior art can crush stones, during the crushing process, a large amount of stones are usually placed inside the device and crushed by a crushing mechanism. Due to the accumulation of a large amount of stones, the stones are squeezed and the fluidity of the stones is poor, which affects the crushing of the stones.

[0006] Traditional stone crushing devices often have the problem of low crushing efficiency, which leads to a long time for crushing. When crushing stones, the crushing effect is not good, which affects the crushing quality of stones and cannot meet construction needs. In addition, when crushing stones, traditional stone crushing devices cannot control the size of the crushed stones. When stones of different particle sizes are needed during construction, the corresponding device needs to be replaced for operation, and the equipment needs to be reassembled on site, which is time-consuming and labor-intensive, and delays the construction progress.

[0007] In view of the above factors, a traffic road construction stone crushing device with a screening structure is provided, which can crush and produce different stones during construction according to different usage conditions. The structure of the invention adopts an integrated setting, which is convenient for transfer and lifting during use. Summary of the invention

[0008] The object of the present invention is to provide a stone crushing device for traffic road construction with a screening structure to solve the problems raised in the above-mentioned background technology.

[0009] The object of the present invention is achieved through the following technical scheme: a traffic road construction stone crushing device with a screening structure, comprising a pre-pretreatment mechanism and a refinement screening mechanism spliced ​​with the pre-pretreatment mechanism, wherein the longitudinal output end and the lateral output end of the refinement screening mechanism are both provided with a crushing / grinding mechanism;

[0010] The pre-treatment mechanism is integrated and placed in an integrated box;

[0011] The detailed screening mechanism and the crushing / grinding mechanism are integrated and placed in an integrated box. The integrated box where the crushing / grinding mechanism is located is fixed with horizontal pouring troughs at the horizontal and vertical positions, and the pouring troughs extend to the outside of the integrated box.

[0012] Further, the pre-pretreatment mechanism comprises a pre-treatment chamber, a guide platform is provided at the inlet position of the pre-treatment chamber, a first guide conveyor belt is provided at the inlet position of the pre-treatment chamber, and the first guide conveyor belt extends to the outlet position of the pre-treatment chamber;

[0013] The discharge position of the pretreatment bin is provided with a material pouring notch, and a material pouring end is provided below the material pouring notch;

[0014] The pre-processing bin is also provided with a dust removal box, one side of the material pouring slot is connected to the bottom of the pre-processing bin, and the other end is connected to the dust removal box.

[0015] Furthermore, the pouring notch is in an eight-shaped shape, and two groups of the pouring notch are provided, and a lining plate is detachably provided on the inner wall of the pouring notch;

[0016] The pre-processing mechanism is fixed in the integrated box through a steel structure truss.

[0017] Furthermore, an extension section is provided at the front end of the pretreatment chamber, the extension section extends to the entrance of the pretreatment chamber, a guide rod is detachably mounted on the extension section, and a blocking frame is also provided on the pretreatment chamber, the cross section of the blocking frame is L-shaped, and the height of the blocking frame extends to half the length of the guide rod;

[0018] A parallel guide plate is provided at the upper end of the pre-treatment bin, the parallel guide plate is fixedly connected to the dust removal box, and a dust channel is formed between the parallel guide plate and the pre-treatment bin;

[0019] The guide rods are arranged at intervals along the longitudinal / lateral width direction of the first guide conveyor belt, and the bottom ends of the guide rods do not contact the first guide conveyor belt.

[0020] Furthermore, the detailed screening mechanism includes a vibrating screen group, a receiving bucket is fixedly arranged below the vibrating screen group, the bottom of the receiving bucket is arranged in a conical structure, outlets are opened along both sides of the receiving bucket, and the outlet positions on both sides of the receiving bucket are arranged with a second guide conveyor belt and a third guide conveyor belt;

[0021] The ends of the second guide conveyor belt and the third guide conveyor belt are connected to the crushing / grinding mechanism.

[0022] Furthermore, two groups of vibrating screen groups are provided, and the inlet position of the vibrating screen group and the discharge position of the pre-treatment bin are provided with a discharge end below the discharge slot and are arranged opposite to each other, the vibrating screen group is arranged obliquely, the vibrating screen group is a trough structure, and screening frames are arranged inside the vibrating screen group;

[0023] The screening frames in the vibrating screen group are arranged in a stepped structure from the inlet position to the outlet position.

[0024] Furthermore, the screening frame is separately provided, and each separately provided step structure is detachably connected to the vibrating screen group;

[0025] Positioning plates are arranged in a stepped manner in the vibrating screen group, and adjacent screening frames are connected to the positioning plates by bolts;

[0026] The screening frame is formed by splicing a plurality of steel structure plates at intervals, and the length of the screening frame is set to 15-25 centimeters, and the length of the screening frame occupies one third of the cross-sectional height of the vibration screen group.

[0027] Furthermore, the crushing / grinding mechanism comprises a cylinder structure and a rotating mechanism arranged in the cylinder structure, and the rotating mechanism is connected to the coarse crushing head and the fine grinding crushing head by screwing or welding;

[0028] The coarse crushing head is arranged at the upper end of the rotating mechanism, and the coarse crushing head is provided with an inclined section and a vertical section, and the inclined section and the vertical section are arranged at intervals;

[0029] The rotating mechanism comprises a rotating shaft and a control motor connected to the rotating shaft, and the output end of the control motor is connected to the rotating shaft;

[0030] The vertical segments are arranged in two groups, and each of the vertical segments is provided with a guide groove along the rotation direction of the rotation mechanism, and the width of the guide groove is one third of the width of the vertical segment.

[0031] Furthermore, the fine grinding crushing head in the crushing / grinding mechanism includes a fine grinding plate arranged on the inner wall of the crushing / grinding mechanism and connected by screwing or welding. The fine grinding plates are arranged at intervals, and fine grinding heads are arranged between adjacent fine grinding plates. The fine grinding heads are arranged at intervals, and the fine grinding heads are arranged below the coarse crushing head.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The present invention can crush and produce different stones during construction according to different use conditions. The structure of the present invention adopts an integrated setting, which is convenient for transfer and hoisting during use.

[0034] The fine grinding crushing head in the crushing / grinding mechanism of the present invention includes a fine grinding plate arranged on the inner wall of the crushing / grinding mechanism and connected by screwing or welding. The fine grinding plates are arranged at intervals, and fine grinding heads are arranged between adjacent fine grinding plates. The fine grinding heads are arranged at intervals, and the fine grinding heads are arranged below the coarse crushing head. In order to ensure that the requirements for stone grinding can be met through the cooperation of the fine grinding plate and the fine grinding head in the use state, corrugated grooves or conical groove structures are opened on the opposite surfaces of the fine grinding plate and the fine grinding head, and the corrugated grooves or conical groove structures arranged on the fine grinding plate and the fine grinding head are arranged in reverse, wherein the corrugated grooves or conical groove structures are not arranged on the bottom fine grinding head.

[0035] In order to improve the utilization rate of the crushing / grinding mechanism when in use, the present invention sets a pre-pretreatment mechanism to reduce the accumulation of materials during processing by the fine screening mechanism, thereby affecting the use effect. The pre-pretreatment mechanism includes a pre-treatment bin, and a guide platform is provided at the inlet position of the pre-treatment bin. A first guide conveyor belt is provided at the inlet position of the pre-treatment bin, and the first guide conveyor belt extends to the outlet position of the pre-treatment bin.

[0036] In order to facilitate the use of the present invention in a state of using by setting a pre-pretreatment mechanism to reduce the accumulation of materials during the processing of the refinement screening mechanism, which affects the use effect, the pre-pretreatment mechanism includes a pre-treatment bin, a guide platform is provided at the inlet position of the pre-treatment bin, a first guide conveyor belt is provided at the inlet position of the pre-treatment bin, the first guide conveyor belt extends to the outlet position of the pre-treatment bin, a material discharge slot is provided at the discharge position of the pre-treatment bin, a material discharge end is provided below the material discharge slot, in order to facilitate the spatial separation of the transported sand and gravel materials by setting a guide rod in a state of using, an extension section is provided at the front end position of the pre-treatment bin, the extension section extends to the inlet position of the pre-treatment bin, a guide rod is detachably mounted on the extension section, and a blocking frame is also provided on the pre-treatment bin, the cross section of the blocking frame is L-shaped, and the height of the blocking frame extends to half the length of the guide rod;

[0037] Among them, the guide rod is a cylindrical rod structure, and is arranged in sections, each section is connected by threads, and the guide rod is arranged in a positioning channel opened on the extension section by plug-in or threaded manner. The positioning channel adopts a countersunk structure and is arranged with a smooth hole or a threaded hole.

[0038] The present invention arranges two groups of detailed screening mechanisms, and the second guide conveyor belt and the third guide conveyor belt are arranged to enter the crushing / grinding mechanism in different directions. When stones of different particle sizes are needed during construction, the crushing / grinding mechanism can be used for rapid production, without the need to replace the corresponding device operation on site, thus saving time and effort and avoiding delays in construction progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is the overall connection schematic diagram of the present invention;

[0040] Figure 2 It is a schematic diagram of the pre-processing mechanism of the present invention;

[0041] Figure 3 The present invention Figure 2 A partial enlarged schematic diagram;

[0042] Figure 4 It is a three-dimensional schematic diagram of the refinement screening mechanism of the present invention;

[0043] Figure 5 It is a plan view of the refinement screening mechanism of the present invention;

[0044] Figure 6 It is a schematic diagram of a vibrating screen group of the present invention having a positioning plate;

[0045] Figure 7 is an enlarged schematic diagram of the vibrating screen group of the present invention;

[0046] Figure 8 It is a three-dimensional schematic diagram of the crushing / grinding mechanism of the present invention;

[0047] Fig. 9 It is a schematic diagram of the internal structure of the crushing / grinding mechanism of the present invention;

[0048] Fig.10 It is an enlarged schematic diagram of the corrugated groove or conical groove structure on the fine grinding plate and the fine grinding head of the present invention;

[0049] Fig.11 It is a plan view of the vibrating screen assembly of the present invention;

[0050] Fig.12 It is a schematic diagram of the crushing / grinding mechanism on both sides of the second guide conveyor belt and the third guide conveyor belt of the present invention;

[0051] Fig.13 It is a schematic diagram of a conveyor belt at the bottom of the crushing / grinding mechanism of the present invention. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0055] like Figure 1-13 As shown, a traffic road construction stone crushing device with a screening structure comprises a pre-pretreatment mechanism 1 and a refinement screening mechanism 2 spliced ​​with the pre-pretreatment mechanism 1, and a crushing / grinding mechanism 3 is provided at both the longitudinal output end and the lateral output end of the refinement screening mechanism 2;

[0056] The pre-treatment mechanism 1 is integrated and placed in an integrated box 4;

[0057] The detailed screening mechanism 2 and the crushing / grinding mechanism 3 are integrated and placed in an integrated box 4. The integrated box 4 where the crushing / grinding mechanism 3 is located is fixed with horizontal pouring troughs at the horizontal and vertical positions, and the pouring troughs extend to the outside of the integrated box 4.

[0058] In order to facilitate the use of the pre-pretreatment mechanism 1 to reduce the accumulation of materials during the processing of the refinement screening mechanism 2 and affect the use effect, the pre-pretreatment mechanism 1 includes a pre-treatment bin 11, a guide platform 12 is provided at the inlet position of the pre-treatment bin 11, and a first guide conveyor belt 13 is provided at the inlet position of the pre-treatment bin 11, and the first guide conveyor belt 13 extends to the outlet position of the pre-treatment bin 11;

[0059] The discharge position of the pre-treatment bin 11 is provided with a material discharge notch 15, and a material discharge end 16 is provided below the material discharge notch 15;

[0060] A pouring end 16 is arranged below the pouring notch 15 and is fixedly arranged to coincide with the bottom opening position of the integrated box 4 .

[0061] A guide platform 12 is provided at the inlet of the pre-treatment chamber 11 and is fixedly arranged to overlap with the opening position on the integrated box 4 , wherein a detachable closing plate is provided on one side of the pre-treatment chamber 11 close to the guide platform 12 .

[0062] The pre-treatment chamber 11 is also provided with a dust removal box 17, and an exhaust fan (not shown in the figure) is arranged inside the dust removal box 17 to suck the smoke and dust outwards through a pipeline for external treatment.

[0063] The detailed screening mechanism 2 and the crushing / grinding mechanism 3 are integrated and placed in an integrated box 4. An exhaust fan (not shown in the figure) is provided in the integrated box 4 to suck the smoke and dust outward through a pipe for external treatment.

[0064] One side of the material pouring slot 15 is connected to the bottom of the pre-treatment bin 11 , and the other end is connected to the dust removal box 17 .

[0065] In order to facilitate the use, the pouring notch 15 is provided to reduce the occurrence of material pile during material transportation. The pouring notch 15 is in an eight-shaped shape, and two groups of the pouring notches 15 are provided. The inner wall of the pouring notch 15 is provided with a liner in a detachable manner.

[0066] The pre-treatment mechanism 1 is fixed in the integrated box 4 via a steel structure truss.

[0067] In order to facilitate the spatial separation of the transported sand and gravel by setting the guide rod 18 in the use state, the front end of the pre-processing bin 11 is provided with an extension section 14, the extension section 14 extends to the inlet position of the pre-processing bin 11, the guide rod 18 is detachably mounted on the extension section 14, and the pre-processing bin 11 is also provided with a blocking frame 19, the cross section of the blocking frame 19 is L-shaped, and the height of the blocking frame 19 extends to half the length of the guide rod 18;

[0068] Among them, the guide rod 18 is a cylindrical rod structure, and is arranged in sections, each section is connected by threads, and the guide rod 18 is arranged in a positioning channel opened on the extension section 14 by plug-in or threaded manner. The positioning channel adopts a countersunk structure and is arranged with a smooth hole or a threaded hole.

[0069] When in use, the guide rods can prevent materials from being accumulated on the first guide conveyor belt 13 .

[0070] A parallel guide plate 20 is disposed at the upper end of the pre-treatment bin 11, and the parallel guide plate 20 is fixedly connected to the dust removal box 17, and a dust channel 21 is formed between the parallel guide plate 20 and the pre-treatment bin 11;

[0071] The guide rods 18 are arranged at intervals along the longitudinal / lateral width direction of the first guide conveyor belt 13 , and the bottom ends of the guide rods 18 are not in contact with the first guide conveyor belt 13 .

[0072] In order to facilitate the screening of on-site construction stones by setting up a detailed screening mechanism 2 in the use state, the detailed screening mechanism 2 includes a vibrating screen group 27, a receiving bucket 22 is fixedly arranged below the vibrating screen group 27, the bottom of the receiving bucket 22 is arranged in a conical structure, and outlets are opened along both sides of the receiving bucket 22, and the outlet positions on both sides of the receiving bucket 22 are provided with a second guide conveyor belt 23 and a third guide conveyor belt 24;

[0073] Steel structure trusses are arranged on both sides of the detailed screening mechanism 2 for support, and springs are arranged on the supporting surfaces of the steel structure trusses for buffering and shock absorption. A polarizer is arranged on one side of the detailed screening mechanism 2 through the steel structure truss, and an eccentric block (disclosed in the prior art, not shown in the figure) is driven by a motor to generate centrifugal force which is transmitted to the detailed screening mechanism 2 to realize vibration.

[0074] Ends of the second guide conveyor belt 23 and the third guide conveyor belt 24 are connected to the crushing / grinding mechanism 3 .

[0075] For the convenience of use, two groups of vibrating screen groups 27 are provided to ensure that different stone particles can be produced during construction, thereby improving the working effect.

[0076] Among them, in the use state, large particle materials are directly screened and directly enter the crushing / grinding mechanism 3 from the end of the vibrating screen group 27, while small particle materials fall into the receiving bucket through the action of the screening frame and are transmitted to the crushing / grinding mechanism 3 on both sides through the second guide conveyor belt 23 and the third guide conveyor belt 24 for further crushing.

[0077] A conveyor belt is arranged at the bottom of the crushing / grinding mechanism 3 , and the crushed stone is transferred to the outside of the container body through the conveyor belt. The conveyor belt is arranged at the bottom of the crushing / grinding mechanism 3 near the bottom opening position of the container body 4 .

[0078] In the use state, by setting the vibrating screen group 27 in the form of a ladder structure, it is ensured that vibration screening is achieved as much as possible during construction, thereby improving the screening efficiency. The vibrating screen group 27 is provided with two groups, and the inlet position of the vibrating screen group 27 is opposite to the discharge position of the pre-treatment bin 11, and the discharge end 16 below the discharge notch 15 is provided. The vibrating screen group 27 is inclined, and the vibrating screen group 27 is a trough structure, and the screening frame 25 is arranged inside the vibrating screen group 27;

[0079] The screening frames 25 in the vibrating screen group 27 are arranged in a stepped structure from the inlet position to the outlet position.

[0080] In order to facilitate the use, different screening frames 25 can be replaced according to the size of the stones during construction according to the needs of use. The screening frames 25 are individually arranged, and each individually arranged step structure is detachably connected to the vibrating screen group 27;

[0081] The screening frame 25 with a longitudinal width is provided to ensure that when in use, the stones will hit the screening frames 25 on both sides during the unloading process, and the longitudinal buffering effect of the stones will be reduced when the stones fall.

[0082] Positioning plates 26 are arranged in a stepped manner in the vibrating screen group 27, and the adjacent screening frames 25 are connected to the positioning plates 26 by bolts;

[0083] The screening frame 25 is detachably mounted on the positioning plate 26 by bolts.

[0084] The screening frame 25 is formed by splicing a plurality of steel structure plates at intervals. The length of the screening frame 25 is set to 15-25 cm. The length of the screening frame 25 occupies one third of the cross-sectional height of the vibration screen group 27 .

[0085] In order to facilitate the crushing of stones during construction and to adjust the coarse crushing head 33 and the fine grinding crushing head 34 according to different uses, the crushing / grinding mechanism 3 includes a cylinder structure 31 and a rotating mechanism 32 arranged in the cylinder structure 31, and the rotating mechanism 32 is connected to the coarse crushing head 33 and the fine grinding crushing head 34 by screwing or welding;

[0086] In order to facilitate the detachable replacement of different coarse crushing heads 33 and fine grinding crushing heads 34 in use, the coarse crushing heads 33 and fine grinding crushing heads 34 are connected to the rotating mechanism 32 by bolts.

[0087] By replacing different coarse crushing heads 33 and fine grinding crushing heads 34 , the grinding gap between the coarse crushing head 33 and the cylinder structure 31 and the distance between the fine grinding crushing head 34 and the fine grinding plate 341 are controlled.

[0088] The coarse crushing head 33 is arranged at the upper end of the rotating mechanism 32, and the coarse crushing head 33 is provided with an inclined section 331 and a vertical section 332, and the inclined section 331 and the vertical section 332 are arranged at intervals;

[0089] An arc guide plate is arranged at the position of the inclined section 331 and the rotating mechanism 32, and the bottom edge of the arc guide plate is located at two-thirds of the upper plane of the inclined section 331. The arc guide plate is fixedly arranged on the rotating mechanism 32. The arc guide plate is arranged to reduce the wear of the stone on the rotating mechanism 32. At the same time, the arc guide plate is used to guide the material between the inclined section 331 and the inner wall of the cylindrical structure 31. When the stone enters the crushing / grinding mechanism 3, the stacking effect of the stone on the inclined section 331 and the arc guide plate is improved, thereby improving the discharge rate of the crushing / grinding mechanism 3.

[0090] The rotating mechanism 32 includes a rotating shaft and a control motor connected to the rotating shaft, and the output end of the control motor is connected to the rotating shaft;

[0091] The vertical segments 332 are provided in two groups, and each of the vertical segments 332 is provided with a guide groove along the rotation direction of the rotation mechanism 32 , and the width of the guide groove is one third of the width of the vertical segment 332 .

[0092] The fine grinding crushing head 34 in the crushing / grinding mechanism 3 includes a fine grinding plate 341 arranged on the inner wall of the crushing / grinding mechanism 3 and connected by screwing or welding. The fine grinding plates 341 are arranged at intervals, and fine grinding heads 342 are arranged between adjacent fine grinding plates 341. The fine grinding heads 342 are arranged at intervals, and the fine grinding heads 342 are arranged below the coarse crushing head 33.

[0093] In order to ensure that the stone grinding requirements can be met through the cooperation between the fine grinding plate 341 and the fine grinding head 342 during use, corrugated grooves or conical groove structures are provided on the opposite surfaces of the fine grinding plate 341 and the fine grinding head 342, and the corrugated grooves or conical groove structures provided on the fine grinding plate 341 and the fine grinding head 342 are set in reverse, wherein the corrugated grooves or conical groove structures are not provided on the fine grinding head 342 at the bottom.

[0094] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0095] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A stone crushing device for traffic road construction with a screening structure, characterized in that: It comprises a pre-pretreatment mechanism (1) and a refinement and screening mechanism (2) connected to the pre-pretreatment mechanism (1), wherein the longitudinal output end and the transverse output end of the refinement and screening mechanism (2) are both provided with a crushing / grinding mechanism (3); The pre-treatment mechanism (1) is integrated and placed in an integrated box (4); The detailed screening mechanism (2) and the crushing / grinding mechanism (3) are integrated and placed in an integrated box (4); the integrated box (4) where the crushing / grinding mechanism (3) is located is provided with horizontal pouring troughs fixedly provided in the transverse and longitudinal positions, and the pouring troughs extend to the outside of the integrated box (4).

2. The stone crushing device with screening structure for traffic road construction according to claim 1 is characterized in that: The pre-pretreatment mechanism (1) comprises a pre-treatment chamber (11), a guide platform (12) is arranged at the inlet of the pre-treatment chamber (11), a first guide conveyor belt (13) is arranged at the inlet of the pre-treatment chamber (11), and the first guide conveyor belt (13) extends to the outlet of the pre-treatment chamber (11); The discharge position of the pretreatment bin (11) is provided with a material discharge notch (15), and a material discharge end (16) is provided below the material discharge notch (15); The pre-treatment bin (11) is also provided with a dust removal box (17); one side of the material pouring slot (15) is connected to the bottom of the pre-treatment bin (11), and the other end is connected to the dust removal box (17).

3. The stone crushing device with screening structure for traffic road construction according to claim 2 is characterized in that: The pouring notch (15) is in an eight-shaped shape, and two groups of the pouring notch (15) are provided. A lining plate is detachably provided on the inner wall of the pouring notch (15); The pre-treatment mechanism (1) is fixed in the integrated box (4) via a steel structure truss.

4. The stone crushing device with screening structure for traffic road construction according to claim 3 is characterized in that: An extension section (14) is provided at the front end of the pre-treatment chamber (11), the extension section (14) extends to the entrance of the pre-treatment chamber (11), a guide rod (18) is detachably mounted on the extension section (14), and a blocking frame (19) is also provided on the pre-treatment chamber (11), the cross section of the blocking frame (19) is L-shaped, and the height of the blocking frame (19) extends to half the length of the guide rod (18); A parallel guide plate (20) is provided at the upper end of the pre-treatment bin (11), the parallel guide plate (20) is fixedly connected to the dust removal box (17), and a dust channel (21) is formed between the parallel guide plate (20) and the pre-treatment bin (11); The guide rods (18) are arranged at intervals along the longitudinal / lateral width direction of the first guide conveyor belt (13), and the bottom ends of the guide rods (18) do not contact the first guide conveyor belt (13).

5. The stone crushing device with screening structure for traffic road construction according to claim 4 is characterized in that: The detailed screening mechanism (2) comprises a vibrating screen group (27), a receiving bucket (22) is fixedly arranged below the vibrating screen group (27), the bottom of the receiving bucket (22) is arranged in a conical structure, outlets are opened along both sides of the receiving bucket (22), and a second guide conveyor belt (23) and a third guide conveyor belt (24) are arranged at the outlet positions on both sides of the receiving bucket (22); The ends of the second guide conveyor belt (23) and the third guide conveyor belt (24) are connected to the crushing / grinding mechanism (3).

6. The stone crushing device with screening structure for traffic road construction according to claim 5 is characterized in that: Two groups of the vibrating screen groups (27) are provided, and the inlet position of the vibrating screen group (27) and the discharge position of the pre-treatment bin (11) are provided with a discharge end (16) below the discharge notch (15) and are arranged opposite to each other. The vibrating screen group (27) is arranged obliquely, and the vibrating screen group (27) is a trough structure, and the screening racks (25) are arranged inside the vibrating screen group (27); The screening frames (25) in the vibrating screen group (27) are arranged in a stepped structure from the inlet position to the outlet position.

7. The stone crushing device with screening structure for traffic road construction according to claim 6 is characterized in that: The screening frame (25) is provided separately, and each separately provided step structure is connected to the vibrating screen group (27) in a detachable manner; Positioning plates (26) are arranged in a stepped manner in the vibrating screen group (27), and adjacent screening frames (25) are connected to the positioning plates (26) by bolts; The screening frame (25) is formed by splicing a plurality of steel structure plates at intervals. The length of the screening frame (25) is set to 15-25 centimeters. The length of the screening frame (25) occupies one third of the cross-sectional height of the vibration screen group (27).

8. The stone crushing device with screening structure for traffic road construction according to claim 7 is characterized in that: The crushing / grinding mechanism (3) comprises a cylinder structure (31) and a rotating mechanism (32) arranged in the cylinder structure (31), wherein the rotating mechanism (32) is connected to a coarse crushing head (33) and a fine grinding crushing head (34) by screwing or welding; the coarse crushing head (33) is arranged at the upper end of the rotating mechanism (32), and the coarse crushing head (33) is provided with an inclined section (331) and a vertical section (332), and the inclined section (331) and the vertical section (332) are arranged at intervals; The rotating mechanism (32) comprises a rotating shaft and a control motor connected to the rotating shaft, wherein the output end of the control motor is connected to the rotating shaft; The vertical sections (332) are arranged in two groups, and each of the vertical sections (332) is provided with a guide groove along the rotation direction of the rotation mechanism (32), and the width of the guide groove is one third of the width of the vertical section (332).

9. The stone crushing device with screening structure for traffic road construction according to claim 8, characterized in that: The fine grinding crushing head (34) in the crushing / grinding mechanism (3) comprises a fine grinding plate (341) arranged on the inner wall of the crushing / grinding mechanism (3) and connected by screwing or welding, the fine grinding plates (341) are arranged at intervals, and fine grinding heads (342) are arranged between adjacent fine grinding plates (341), the fine grinding heads (342) are arranged at intervals, and the fine grinding heads (342) are arranged below the coarse crushing head (33).

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