CN116116542A

CN116116542A - Sand and stone crushing device for building construction

Info

Publication number: CN116116542A
Application number: CN202310265963.3A
Authority: CN
Inventors: 康举; 康五平; 康伟
Original assignee: Dongguan Xianfeng Construction Engineering Co ltd
Current assignee: Dongguan Xianfeng Construction Engineering Co ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-05-16

Abstract

The invention discloses a sand and stone crushing device for building construction, which belongs to the technical field of sand and stone crushing and comprises a frame body, a cone crushing mechanism, a screening mechanism and a roller crushing mechanism; the cone crushing mechanism comprises a fixed cone cylinder, a movable cone and a rotating assembly, wherein the fixed cone cylinder is arranged on the frame body, a cone groove which is arranged in a penetrating manner is formed in the fixed cone cylinder, and the movable cone is rotatably arranged on the frame body and positioned in the cone groove; the screening mechanism comprises a screen plate and a swinging assembly, the screen plate is provided with a plurality of screen holes which are arranged in a penetrating manner, the screen plate is positioned at the bottom of the fixed cone cylinder, and the screen plate is rotationally connected to the frame body; the roller type crushing mechanism comprises two crushing rollers and a driving assembly, the two crushing rollers are rotatably mounted on the frame body, the two crushing rollers are located at one end of the lower part of the screen plate and used for crushing materials falling from one end of the screen plate in a rolling manner, and the driving assembly is used for driving the two crushing rollers to reversely rotate. The sand-stone crushing device has the advantages that the consistency of granularity after sand-stone crushing is guaranteed, and the use requirement of customers in actual use is met.

Description

Sand and stone crushing device for building construction

Technical Field

The invention relates to the field of sand and stone crushing, in particular to a sand and stone crushing device for building construction.

Background

Sand generally refers to a loose mixture of sand grains and broken stones, the sand has good hardness and stable chemical properties, the sand is often used as a high-quality building raw material, the difference of the shapes and the sizes of different sand is large, and in order to obtain sand with uniform shapes and sizes, a crushing device is generally used for crushing the sand.

The crushing device in the related art generally comprises a frame body and a cone crushing mechanism arranged in the frame body, wherein the cone crushing mechanism comprises a fixed cone and a movable cone, the fixed cone is fixedly arranged on the frame body, during use, the movable cone is driven by a motor to realize shearing and grinding of sand and stone through eccentric motion, and crushed materials directly fall from the bottom of the frame body to be collected and processed in a concentrated mode.

Aiming at the related technology, the sand and the stone with larger granularity and the sand with smaller granularity are collected and processed together after being crushed by the cone crushing mechanism, so that the consistency of the granularity of the sand and stone after being crushed is not convenient to ensure, and the use requirement of customers in actual use is difficult to meet.

Disclosure of Invention

In order to guarantee the uniformity of granularity after the grit breakage of being convenient for, satisfy customer's in-service use and require when, this application provides a grit breaker for construction.

The application provides a grit breaker for construction adopts following technical scheme:

a sand and stone crushing device for building construction comprises a frame body, a cone crushing mechanism, a screening mechanism and a roller crushing mechanism; the cone crushing mechanism comprises a fixed cone barrel, a movable cone and a rotating assembly, wherein the fixed cone barrel is arranged on the frame body, a cone groove which is arranged in a penetrating manner is formed in the fixed cone barrel, the movable cone is rotatably arranged on the frame body and is positioned in the cone groove, and the rotating assembly is arranged on the frame body and is used for driving the movable cone to eccentrically rotate; the screening mechanism comprises a screen plate and a swinging assembly, wherein a plurality of screen holes which are arranged in a penetrating mode are formed in the screen plate, the screen plate is positioned at the bottom of the fixed cone cylinder and is rotationally connected to the frame body, the screen plate is obliquely arranged from top to bottom, and the swinging assembly is used for driving the screen plate to swing around a rotating point; the roller type crushing mechanism comprises two crushing rollers and a driving assembly, wherein the two crushing rollers are rotatably arranged on the frame body, the two crushing rollers are positioned at one end of the lower part of the screen plate and used for crushing materials falling from one end of the screen plate by rolling, and the driving assembly is used for driving the two crushing rollers to reversely rotate.

Through adopting above-mentioned technical scheme, when carrying out crushing processing to the grit, firstly send into the toper inslot through toper groove top notch with the grit, then it is broken to the grit extrusion of the cell wall in toper groove to make the toper outside of moving through the eccentric rotation of rotating the subassembly drive, broken material falls into the screen plate top, afterwards, the material that is less than the sieve mesh aperture after the rethread swing subassembly drive screen plate revoluted the swing of rotation point makes the breakage directly fall, the material that is greater than the sieve mesh aperture falls into between two crushing rollers carries out the secondary through the reverse rotation of drive assembly drive two crushing rollers and falls down again after the secondary breakage, move the grit that the primary breakage back granularity is great and can be together with the grit together concentrated collection processing of less granularity after two crushing rollers, thereby be favorable to guaranteeing the uniformity of grit breakage, thereby the operation requirement when easily satisfying customer in service.

Optionally, the screen plate fixedly connected with oscillating axle, oscillating axle one end wears to locate the support body, the support body has been seted up and has been used for supplying the oscillating axle to carry out the wobbling swinging groove, the swing subassembly includes swing motor and swing cam, the swing cam rotates and installs in the support body, swing cam outer peripheral face is contradicted in the oscillating axle, the swing motor is used for driving the swing cam and rotates.

By adopting the technical scheme, when the swing motor drives the swing cam to rotate, the swing shaft drives the sieve plate to move together, and the swing motor drives the swing cam to rotate, so that the reciprocating swing of the sieve plate can be realized, and the reciprocating swing operation of the sieve plate is rapid and simple.

Optionally, the swing cam includes fixed part and adjustment part, adjustment part is fixed in fixed part one side through adjusting bolt, swing motor is used for driving the rotation of fixed part.

Through adopting above-mentioned technical scheme, screw adjusting bolt can realize adjusting the position at adjusting part outer peripheral face place to can be to the regulation of oscillating axle swing range, be convenient for carry out adaptability to the grit of different granularity sizes and adjust, the suitability is strong.

Optionally, regulation portion one end rotates to be connected in fixed part, regulation portion has seted up and has run through and be used for supplying adjusting bolt to carry out the adjustment tank of activity, regulation portion, adjusting bolt and adjustment tank have a plurality of around fixed part axis circumference distribution.

Through adopting above-mentioned technical scheme, when unscrewing adjusting bolt, rotate adjusting part and make adjusting part outer peripheral face remove the back, screw up adjusting bolt again and realize supporting the fastening to adjusting part and fix can realize the regulation to adjusting part outer peripheral face place position, rotate adjusting part and the regulating groove that the connection set up and make difficult coming off when adjusting part adjusts, be convenient for realize simultaneously the accurate regulation to adjusting part place position, the setting of a plurality of adjusting parts is convenient for further realize the regulation of oscillating axle swing frequency in the same rotational speed of motor, be favorable to further reinforcing suitability.

Optionally, the one end that the oscillating axle worn to locate outside the support body rotates and installs the cylinder, the outer peripheral face of oscillating cam is contradicted in the cylinder outer peripheral face.

Through adopting above-mentioned technical scheme, when the setting of cylinder makes oscillating cam drive oscillating axle wobbling, the friction between with the oscillating axle is rolling friction to be favorable to reducing the frictional force between oscillating axle and the oscillating cam, reduce the wearing and tearing condition that oscillating axle and oscillating cam friction lead to mutually, guarantee the life of oscillating axle.

Optionally, the swing axle is fixedly connected with baffle, the baffle is used for sealing the notch of swing groove towards sieve one side.

Through adopting above-mentioned technical scheme, the setting of baffle makes the material after the screening be difficult for falling into outside the support body through the notch of swing groove, guarantees the stability when grit crushing and screening.

Optionally, the one end rotation that roller-type crushing mechanism was kept away from to the sieve is connected with the screens board, be provided with the reset torsional spring between screens board and the sieve, during the sieve swing, the one end that screens board was kept away from to the screens board is contradicted in the support body.

Through adopting above-mentioned technical scheme, the setting of screens board makes the sieve swing conflict all the time in the support body around self rotation point swing in-process, and then makes the material after having moving the awl broken be difficult for dropping from the gap between sieve one end and the support body, is convenient for fully realize the screening treatment to the preliminary broken back material of fixed cone.

Optionally, the cone crushing mechanism further includes a lifting component, the lifting component includes a driving gear, a driven gear and a driving motor, the fixed cone is in threaded fit with the frame, the driven gear is coaxially and fixedly sleeved on the fixed cone, the driving gear is meshed with the driven gear, the thickness of the driving gear is greater than that of the driven gear, and the driving motor is arranged on the frame and used for driving the driving gear to rotate.

Through adopting above-mentioned technical scheme, when driving motor drive driving gear rotated, driven gear drove and decides a cone section of thick bamboo and rotate together, decides a cone section of thick bamboo and carry out elevating movement because of the screw-thread fit with the support body to make the conical groove and move the clearance between the awl and can adjust, thereby can realize moving the preliminary regulation of back grit granularity size of breaking of awl, the suitability is strong.

Optionally, the output end of the driving motor is fixedly connected with a worm, the driving gear is coaxially and fixedly connected with a worm wheel, and the worm is meshed with the worm wheel.

Through adopting above-mentioned technical scheme, when driving motor drive worm rotated, the worm wheel drove the driving gear and rotates together, and the self-locking effect between worm wheel and the worm is favorable to guaranteeing the stability in position behind the driving gear rotation.

Optionally, the support body is provided with the division board, the division board separates sieve and roller type crushing mechanism, the sieve bottom is provided with first receipts workbin, two crushing roller bottom is provided with the second and receives the workbin.

Through adopting above-mentioned technical scheme, the setting of division board makes the material after the first breakage and the material after the second breakage separate, and first material receiving box and second material receiving box collect respectively the processing respectively to the material after the first breakage and the second breakage simultaneously, and the uniformity of the broken back granularity of grit in first material receiving box and the second material receiving box is convenient for further guarantee.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sand with larger granularity after the primary crushing of the movable cone can be collected and treated together with the sand with smaller granularity after the secondary crushing of the two crushing rollers, so that the consistency of the granularity after the sand crushing is guaranteed, and the use requirement of customers during actual use is met easily.

2. The adjusting bolt can be screwed to adjust the position of the outer peripheral surface of the adjusting part, so that the swing amplitude of the swing shaft can be adjusted, the adaptability adjustment of sand stones with different granularity can be conveniently carried out, and the applicability is strong.

3. The setting of screens board makes the sieve swing conflict in the support body all the time around self rotation point swing in-process, and then makes the material after having moving the awl broken be difficult for dropping from the gap between sieve one end and the support body, is convenient for fully realize the screening treatment to the preliminary broken material of stationary cone.

4. When the driving motor drives the driving gear to rotate, the driven gear drives the fixed cone cylinder to rotate together, and the fixed cone cylinder performs lifting movement due to threaded fit with the frame body, so that a gap between the conical groove and the movable cone can be adjusted, and the adjustment of the granularity of sand and stone after preliminary crushing of the movable cone can be realized, and the applicability is strong.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of the overall structure of an embodiment of the present application.

Fig. 3 is an enlarged partial schematic view of the portion a in fig. 2.

Fig. 4 is a schematic structural diagram of a lifting assembly according to an embodiment of the present application.

Fig. 5 is a schematic structural view of a swing assembly according to an embodiment of the present application.

Reference numerals illustrate:

1. a frame body; 2. a fixed cone cylinder; 3. a movable cone; 4. a conical groove; 5. a feed hopper; 6. a rotating motor; 7. a drive bevel gear; 8. a driven bevel gear; 9. a fixed shaft; 10. an eccentric shaft; 11. a cover part; 12. a drive gear; 13. a driven gear; 14. a driving motor; 15. a worm; 16. a worm wheel; 17. a sieve plate; 18. a sieve pore; 19. a swing shaft; 20. a swinging groove; 21. a swing motor; 22. a swing cam; 221. a fixing part; 222. an adjusting section; 23. a roller; 24. an adjusting bolt; 25. an adjustment tank; 26. a baffle; 27. a movable groove; 28. a clamping plate; 29. a reset torsion spring; 30. a crushing roller; 31. controlling a motor; 32. a partition plate; 33. a first receiving bin; 34. and a second material receiving box.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a grit breaker for construction. Referring to fig. 1 and 2, a sand crushing device for construction includes a frame body 1, a cone crushing mechanism, a screening mechanism, and a roller crushing mechanism, wherein the cone crushing mechanism includes a fixed cone 2, a movable cone 3, a rotating assembly, and a lifting assembly.

Referring to fig. 2, the outer circumferential surface of the fixed cone 2 is screwed on the top of the frame 1, the fixed cone 2 is provided with a conical groove 4 penetrating along the axial direction of the fixed cone 2, and a smaller notch of the conical groove 4 is positioned on the top of the fixed cone 2. The top fixed mounting of the fixed cone 2 has a feed hopper 5, and the feed hopper 5 is funnel-shaped and is communicated with the conical groove 4 so as to concentrate and stably feed more materials into the conical groove 4.

Referring to fig. 2 and 3, the movable cone 3 is rotatably mounted on the frame 1 and is located in the cone groove 4, the rotating assembly comprises a rotating motor 6, a driving bevel gear 7, a driven bevel gear 8, a fixed shaft 9 and an eccentric shaft 10, the rotating motor 6 is mounted on the frame 1, the driving bevel gear 7 is fixedly mounted at the output end of the rotating motor 6, the driven bevel gear 8 is meshed with the driving bevel gear 7, the fixed shaft 9 is coaxially and fixedly connected to the top of the driven bevel gear 8, the eccentric shaft 10 is coaxially and fixedly connected to the movable cone 3, the eccentric shaft 10 is rotatably connected to the fixed shaft 9, and the axis of the eccentric shaft 10 is parallel to the axis of the fixed shaft 9, so that when the rotating motor 6 drives the driving bevel gear 7 to rotate, the driven bevel gear 8 drives the fixed shaft 9, the eccentric shaft 10 and the movable cone 3 to synchronously rotate around the axis of the fixed shaft 9, and the movable cone 3 can realize extrusion crushing of sand in the cone groove 4.

Referring to fig. 2 and 4, the frame body 1 is fixedly connected with a covering portion 11 for covering the driving bevel gear 7 and the driven bevel gear 8, so that when the moving cone 3 breaks sand, broken sand is not easy to interfere with the engagement between the driving bevel gear 7 and the driven bevel gear 8, and stability when the driving bevel gear 7 drives the driven bevel gear 8 to rotate is guaranteed.

With continued reference to fig. 2 and 4, the lifting assembly includes a driving gear 12, a driven gear 13 and a driving motor 14, the output end of the driving motor 14 is fixedly connected with a worm 15, the driving gear 12 is coaxially and fixedly connected with a worm wheel 16, and the worm wheel 16 is meshed with the worm 15 and is rotatably mounted on the frame body 1. The fixed cone 2 is located to the coaxial fixed cover of driven gear 13, and the thickness of driving gear 12 is greater than the thickness of driven gear 13 to when making driving motor 14 drive driving gear 12 rotate, driven gear 13 drives fixed cone 2 and rotates together, and fixed cone 2 carries out elevating movement because of the screw-thread fit with support body 1, thereby makes the clearance between conical tank 4 and the movable cone 3 can be adjusted, and then realizes the regulation to the grit granularity size after the preliminary breakage of movable cone 3, and the suitability is strong.

Referring to fig. 1 and 3, the screening mechanism includes a screen plate 17 and a swing assembly, the screen plate 17 is provided with screen holes 18 distributed in rectangular array and penetrating through the screen plate, the screen plate 17 is positioned at the bottom of the fixed cone 2 and is inclined from injury to fall, and one end of the lower part of the screen plate 17 is rotatably connected with the frame body 1. One end of the sieve plate 17, which is close to the higher position of the sieve plate, is fixedly connected with a horizontally arranged swinging shaft 19, and one end of the swinging shaft 19 penetrates through the frame body 1. The frame body 1 is provided with a swinging groove 20 taking the rotation point of the sieve plate 17 as the circle center and the distance between the rotation point of the sieve plate 17 and the swinging shaft 19 as the radius, the swinging groove 20 is penetrated and arranged, and the swinging shaft 19 is in sliding fit in the swinging groove 20, namely, the swinging shaft 19 can swing in the swinging groove 20.

Referring to fig. 1 and 5, the swing assembly includes a swing motor 21 and a swing cam 22, the swing cam 22 includes a fixing portion 221 and an adjusting portion 222, the fixing portion 221 is in a circular plate shape, the fixing portion 221 is fixedly connected to an output end of the swing motor 21, the adjusting portion 222 is in a fan-shaped plate shape, and each corner of an outer peripheral surface of the adjusting portion 222 is in an arc transition arrangement, in this embodiment, the adjusting portion 222 is uniformly distributed with three corners around an axial circumference of the fixing portion 221. The drum 23 is rotatably mounted at one end of the swing shaft 19 penetrating the outside of the swing groove 20, and when the swing motor 21 drives the fixing parts 221 to rotate, the outer circumferential surfaces of the fixing parts 221 and the adjusting parts 222 sequentially abut against the drum 23, thereby realizing the swing of the swing shaft 19 in the swing groove 20.

Referring to fig. 5, one end of each adjusting portion 222 is rotatably connected to a fixing portion 221, and three adjusting bolts 24 respectively corresponding to each adjusting portion 222 are screwed to the fixing portion 221. The adjusting part 222 is provided with the adjusting grooves 25 taking the rotating point of the adjusting part 222 as the center of a circle, the distance from the rotating point of the adjusting part 222 to one of the corresponding adjusting bolts 24 is a radius, each adjusting bolt 24 is respectively positioned in each adjusting groove 25, namely each adjusting groove 25 is respectively used for each adjusting bolt 24 to move, when the adjusting bolts 24 are unscrewed, the adjusting part 222 is rotated to enable the outer peripheral surface of the adjusting part 222 to move, then the adjusting bolts 24 are screwed down to realize the abutting and fastening of the adjusting part 222, the position of the outer peripheral surface of the adjusting part 222 can be adjusted, the swinging frequency and the swinging amplitude of the swinging shaft 19 can be adjusted, the adaptability adjustment of sand and stone with different granularity sizes is facilitated, and the applicability is strong.

Referring to fig. 2 and 3, in order to ensure the sealing performance of the swing groove 20 when the swing shaft 19 swings, the swing shaft 19 is fixedly connected with a baffle 26, the baffle 26 is in an arc shape, the frame body 1 is provided with a movable groove 27 taking the rotation point of the sieve plate 17 as the center of a circle, the distance between the rotation point of the sieve plate 17 and the swing shaft 19 is a radius, the groove depth of the movable groove 27 is smaller than that of the swing groove 20, the baffle 26 is in sliding fit in the movable groove 27, and when the swing shaft 19 swings in the swing groove 20, the baffle 26 synchronously rotates and always seals the notch of the swing groove 20 facing one side of the sieve plate 17, so that broken sand is not easy to flow out of the frame body 1 through the swing groove 20.

With continued reference to fig. 2 and 3, in order to make the sieve 17 rotate, the gravel after moving the awl 3 breakage is difficult for dropping from the gap between the one end of the higher department of sieve 17 and the support body 1, and the one end of the higher department of sieve 17 rotates and is connected with screens board 28, installs reset torsion spring 29 between screens board 28 and the sieve 17, and when the sieve 17 rotates around self rotation point, screens board 28 is contradicted in support body 1 inner wall all the time under reset torsion spring 29's elasticity effect, promptly to the gap between one end of the higher department of sieve 17 and the support body 1 shutoff.

Referring to fig. 1 and 2, the roller type crushing mechanism includes two crushing rollers 30 and a driving assembly, wherein the two crushing rollers 30 are rotatably mounted on the frame 1 and located at one end of the lower portion of the screen plate 17, the driving assembly includes two control motors 31, and the two crushing rollers 30 are fixedly mounted at output ends of the two motors, so that the two control motors 31 respectively drive the two crushing rollers 30 to rotate reversely. When the screen plate 17 rotates around the rotation point of the screen plate 17, the material positioned at the top of the screen plate 17 falls between the two crushing rollers 30, and secondary crushing of the material is realized when the two crushing rollers 30 rotate.

With continued reference to fig. 1 and 2, the frame 1 is fixedly provided with a vertically arranged partition plate 32, the partition plate 32 separates the screen plate 17 and the roller type crushing mechanism, a first material receiving box 33 with an open top is arranged at the bottom of the screen plate 17, and a second material receiving box 34 with an open top is arranged at the bottom of the two crushing rollers 30, so that the materials screened by the screen plate 17 and the materials secondarily crushed by the two crushing rollers 30 are collected intensively.

The implementation principle of the sand and stone crushing device for building construction is as follows: when the sand and stone is required to be crushed, firstly, sand and stone are fed into the conical groove 4 through the feed hopper 5, then the eccentric rotation of the movable cone 3 is driven by the rotary motor 6 to enable the outer side of the movable cone 3 and the groove wall of the conical groove 4 to squeeze and crush the sand and stone, the crushed material falls into the top of the sieve plate 17, then the swing motor 21 drives the sieve plate 17 to swing around the rotation point to enable the crushed material smaller than the aperture of the sieve holes 18 to directly fall down, the material larger than the aperture of the sieve holes 18 falls into the space between the two crushing rollers 30, and the two crushing rollers 30 are driven by the driving component to reversely rotate to perform secondary crushing and then fall down, and sand and stone after screening by the sieve plate 17 and sand and stone after secondary crushing by the two crushing rollers 30 can be collected and processed in a concentrated mode through the first material collecting box 33 and the second material collecting box 34 respectively, so that the uniformity of granularity after sand and stone crushing is guaranteed, and the use requirements of customers in actual use can be met easily.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A grit breaker for construction, its characterized in that: comprises a frame body (1), a cone crushing mechanism, a screening mechanism and a roller crushing mechanism;

the cone crushing mechanism comprises a fixed cone cylinder (2), a movable cone (3) and a rotating assembly, wherein the fixed cone cylinder (2) is installed on the frame body (1), a cone groove (4) penetrating through the fixed cone cylinder (2) is formed, the movable cone (3) is rotatably installed on the frame body (1) and located in the cone groove (4), and the rotating assembly is arranged on the frame body (1) and used for driving the movable cone (3) to eccentrically rotate;

the screening mechanism comprises a screen plate (17) and a swinging assembly, wherein the screen plate (17) is provided with a plurality of screen holes (18) which are arranged in a penetrating mode, the screen plate (17) is positioned at the bottom of the fixed cone (2) and is rotationally connected with the frame body (1), the screen plate (17) is obliquely arranged from top to bottom, and the swinging assembly is used for driving the screen plate (17) to swing around a rotating point;

the roller type crushing mechanism comprises two crushing rollers (30) and a driving assembly, wherein the two crushing rollers (30) are rotatably arranged on the frame body (1), the two crushing rollers (30) are positioned at one end of the lower part of the screen plate (17) and are used for crushing materials falling from one end of the screen plate (17) in a rolling manner, and the driving assembly is used for driving the two crushing rollers (30) to reversely rotate.

2. A sand crushing apparatus for building construction according to claim 1, wherein: the screen plate (17) is fixedly connected with a swinging shaft (19), one end of the swinging shaft (19) penetrates through the frame body (1), a swinging groove (20) used for enabling the swinging shaft (19) to swing is formed in the frame body (1), the swinging assembly comprises a swinging motor (21) and a swinging cam (22), the swinging cam (22) is rotatably mounted on the frame body (1), the peripheral surface of the swinging cam (22) is abutted against the swinging shaft (19), and the swinging motor (21) is used for driving the swinging cam (22) to rotate.

3. A sand crushing apparatus for building construction according to claim 2, wherein: the swing cam (22) comprises a fixing part (221) and an adjusting part (222), the adjusting part (222) is fixed on one side of the fixing part (221) through an adjusting bolt (24), and the swing motor (21) is used for driving the fixing part (221) to rotate.

4. A sand crushing apparatus for building construction according to claim 3, wherein: one end of the adjusting part (222) is rotatably connected to the fixing part (221), the adjusting part (222) is provided with an adjusting groove (25) which penetrates through and is used for allowing the adjusting bolt (24) to move, and the adjusting part (222), the adjusting bolt (24) and the adjusting groove (25) are circumferentially distributed around the axis of the fixing part (221).

5. A sand crushing apparatus for use in building construction according to any one of claims 2 to 4, wherein: one end of the swing shaft (19) penetrating through the outer side of the frame body (1) is rotatably provided with a roller (23), and the outer peripheral surface of the swing cam (22) is abutted against the outer peripheral surface of the roller (23).

6. A sand crushing apparatus for building construction according to claim 2, wherein: the swing shaft (19) is fixedly connected with a baffle (26), and the baffle (26) is used for sealing a notch of the swing groove (20) towards one side of the sieve plate (17).

7. A sand crushing apparatus for building construction according to claim 1, wherein: one end of the screen plate (17) far away from the roller type crushing mechanism is rotationally connected with a clamping plate (28), a reset torsion spring (29) is arranged between the clamping plate (28) and the screen plate (17), and when the screen plate (17) swings, one end of the clamping plate (28) far away from the screen plate (17) is abutted to the frame body (1).

8. A sand crushing apparatus for building construction according to claim 1, wherein: the cone crushing mechanism further comprises a lifting assembly, the lifting assembly comprises a driving gear (12), a driven gear (13) and a driving motor (14), the fixed cone (2) is in threaded fit with the frame body (1), the driven gear (13) is coaxially and fixedly sleeved on the fixed cone (2), the driving gear (12) is meshed with the driven gear (13), the thickness of the driving gear (12) is larger than that of the driven gear (13), and the driving motor (14) is arranged on the frame body (1) and used for driving the driving gear (12) to rotate.

9. A sand crushing apparatus for building construction according to claim 8, wherein: the output end of the driving motor (14) is fixedly connected with a worm (15), the driving gear (12) is coaxially and fixedly connected with a worm wheel (16), and the worm (15) is meshed with the worm wheel (16).

10. A sand crushing apparatus for building construction according to claim 8, wherein: the frame body (1) is provided with a separation plate (32), the separation plate (32) separates a sieve plate (17) and a roller type crushing mechanism, a first material receiving box (33) is arranged at the bottom of the sieve plate (17), and a second material receiving box (34) is arranged at the bottom of the crushing roller (30).