A rock-breaking device for civil engineering

Abstract

The present invention discloses a rock and soil crushing device for civil engineering, belonging to the technical field of rock and soil crushing. It includes a circulating mechanism for circularly crushing rock and soil, a crushing mechanism for crushing rock and soil provided on the circulating mechanism, and a collecting mechanism for separately collecting the crushed rock and soil and dust; the circulating mechanism provided in the present invention can push the rock and soil that has been preliminarily crushed but does not meet the size requirements into the dumping frame, and pour the rock and soil in the dumping frame into the crushing box for continuous circular crushing, with good crushing effect; when the electric cylinder provided in the present invention contracts, it pushes the rock and soil that does not meet the size requirements in the screening frame into the dumping frame, and pushes the rock and soil that meets the size requirements onto the sieve plate, and drives the dumping frame to rise and pour the rock and soil into the crushing box when the electric cylinder extends, and so on reciprocally, with high automation and good continuity; when the crushing mechanism provided in the present invention crushes the rock and soil, it synchronously drives the screening frame to continuously shake, facilitating the screening of the rock and soil that meets the size requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of geotechnical crushing, and particularly relates to a geotechnical crushing device for civil engineering. Background Art

[0002] The geotechnical crushing devices in civil engineering are mainly used for the crushing, cutting and treatment of rocks or soils in geotechnical engineering. The goal of such devices is to make the physical properties of geotechnical materials more suitable for subsequent construction or other engineering operations. Specific application scenarios include underground engineering, tunnel excavation, mining, and the construction of civil engineering infrastructure, etc. In the existing technology, the geotechnical materials after being crushed by the geotechnical crushing devices in civil engineering usually still have large-volume geotechnical materials that cannot be directly used and small dust, and need to be further screened before use, which is inconvenient to use. Summary of the Invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a geotechnical crushing device for civil engineering, including a circulation mechanism for circularly crushing geotechnical materials. The circulation mechanism includes a main frame, a frame is fixedly installed on the main frame, a crushing box is fixedly installed on the frame, a screening frame is slidably installed below the crushing box, and a crushing mechanism for crushing geotechnical materials and a collection mechanism for separately collecting the crushed geotechnical materials and dust are arranged on the circulation mechanism;

[0004] The circulation mechanism includes a dumping frame, a front lifting block is rotatably installed on the dumping frame, a rear lifting block is slidably installed on the frame, the front lifting block is slidably installed with the frame, one end of a rear pulling rope is fixedly installed on the rear lifting block, the other end of the rear pulling rope is fixedly installed with a pulling plate, one end of a front pulling rope is fixedly installed on the front lifting block, and the other end of the front pulling rope is fixedly installed with the pulling plate;

[0005] The crushing mechanism includes a main crushing wheel and a secondary crushing wheel rotatably installed on the crushing box, and a transmission shaft is fixedly installed on the secondary crushing wheel.

[0006] Further, the circulation mechanism further includes an upper spring and a lower spring arranged between the frame and the pulling plate, a rear spring is arranged between the rear lifting block and the frame, a front spring is arranged between the front lifting block and the frame, the rear pulling rope and the front pulling rope respectively bypass a plurality of transmission wheels, a pushing frame is fixedly installed on the front lifting block, and a slope is arranged on the pushing frame.

[0007] Further, an outer push rod is slidably installed on the crushing box, an inverted slope plate is fixedly installed on the outer push rod, a spring is arranged between the outer push rod and the crushing box, a circular hole is arranged on the rear lifting block, a convex column is arranged on the dumping frame, and the convex column on the dumping frame is located in the circular hole of the rear lifting block, and the diameter of the convex column on the dumping frame is smaller than the diameter of the circular hole on the rear lifting block.

[0008] Furthermore, an electric cylinder is fixedly installed on the crushing box. A sliding plate is fixedly installed at the output end of the electric cylinder. A connecting rod is fixedly installed on the sliding plate. A number of blanking grooves are provided on the screening frame. A pushing block is slidably installed on the screening frame. The pushing block is fixedly installed with the connecting rod. A slope is provided on the pushing block. An inward retracting rod is slidably installed on the pushing block. A transverse spring is provided between the inward retracting rod and the pushing block. A sliding cylinder is rotatably installed on the inward retracting rod. A torsion spring is provided between the sliding cylinder and the inward retracting rod. A triangular block is slidably installed in the sliding cylinder. A spring is provided between the triangular block and the sliding cylinder. A slope is provided on the triangular block. An inner pushing plate and a baffle are fixedly installed on the screening frame. A slope is provided on the inner pushing plate.

[0009] When the electric cylinder contracts, it drives the sliding plate, the connecting rod and the pushing block to slide along the screening frame, pushing the crushed rock and soil along the screening frame. The rock and soil that meets the size requirements falls onto the sieve plate along the blanking grooves of the screening frame, while the over-sized rock and soil is pushed by the pushing block into the dumping frame. When the electric cylinder contracts, it drives the inward retracting rod, the sliding cylinder and the triangular block to slide together in the direction of the dumping frame. When the triangular block contacts the pulling plate, under the action of the pulling plate, it will drive the triangular block to slide relative to the sliding cylinder, and the spring between the triangular block and the sliding cylinder is compressed. Subsequently, when the triangular block passes through the pulling plate, the spring between the sliding cylinder and the triangular block rebounds. At this time, the triangular block is located between the upper spring and the lower spring. At this time, the pushing block just pushes the over-sized rock and soil on the screening frame into the dumping frame. Then the electric cylinder starts to extend, driving the pushing block, the inward retracting rod, the sliding cylinder and the triangular block to slide in the direction of the baffle. The pulling plate is driven to move together by the triangular block. The upper spring and the lower spring are stretched. The rear lifting block, the front lifting block and the pushing frame are synchronously lifted by pulling the front pulling rope and the rear pulling rope, thereby driving the dumping frame to rise. The front spring and the rear spring are compressed. When the pushing frame contacts the outer push rod, it drives the outer push rod and the pouring slope plate to slide along the crushing box. The spring between the outer push rod and the crushing box is compressed, so that the pouring slope plate moves away from above the dumping frame. When the dumping frame reaches beside the pouring slope plate, the pulling plate moves to the baffle. Under the action of the baffle, the upper part of the pulling plate cannot move forward any more, while the lower part of the pulling plate continues to move forward, so that the rear pulling rope is continuously pulled while the front pulling rope is no longer pulled, so that the rear lifting block continues to rise while the front lifting block no longer rises. The rear lifting block drives the dumping frame to rotate around the front lifting block, so that the large pieces of rock and soil in the dumping frame are poured into the crushing box for re-crushing. When the inward retracting rod moves to the inner pushing plate, under the action of the inner pushing plate, it drives the inward retracting rod to slide inward along the pushing block, and the transverse spring is compressed. At this time, the triangular block is separated from the pulling plate, and the upper spring and the lower spring slowly rebound, so that the pulling plate returns to the initial position. At the same time, the rear spring and the front spring rebound, so that the dumping frame returns to the initial position. The slope on the pushing block causes the pushing block to push up the large pieces of rock and soil falling from the crushing box when moving towards the inner pushing plate, so that the pushing block can smoothly return to the initial position.

[0010] Further, the crushing mechanism further includes a crushing motor fixedly installed on the crushing box. An output gear is fixedly installed on the main crushing wheel. The crushing motor drives the output gear to rotate through gear transmission. A fixed toothed plate is fixedly installed inside the crushing box. The main crushing wheel and the secondary crushing wheel are driven to rotate through gear meshing.

[0011] Further, a rotating dial is rotatably installed on the crushing box. Four dial rods are fixedly installed on the rotating dial. A jitter rod is fixedly installed on the screening frame. A spring is arranged between the crushing box and the screening frame. The output gear drives the rotating dial to rotate through belt transmission.

[0012] The rock and soil are put into the crushing box. The crushing motor drives the output gear and the main crushing wheel to rotate through gear transmission. The main crushing wheel drives the secondary crushing wheel to rotate through gear transmission. Cooperating with the fixed toothed plate to crush the rock and soil. The crushed rock and soil reach the screening frame. The secondary crushing wheel simultaneously drives the transmission shaft to rotate. The transmission shaft drives the upper output roller to rotate through belt transmission. At the same time, the output gear drives the rotating dial and the dial rods to rotate through belt transmission. When the dial rod contacts the jitter rod, it will drive the jitter rod and the screening frame to generate a small displacement relative to the crushing box. The spring between the crushing box and the screening frame is compressed. When the dial rod passes through the jitter rod, the spring between the crushing box and the screening frame rebounds, causing the jitter rod and the screening frame to reset. The dial rod continuously hits the jitter rod, causing the screening frame to vibrate continuously, making the rock and soil that meet the size in the screening frame fall out of the blanking groove on the screening frame onto the sieve plate more smoothly.

[0013] Further, the collection mechanism includes a sieve plate fixedly installed on the frame. A number of holes are provided on the sieve plate. A bottom plate is fixedly installed on the main frame. A conveying frame is fixedly installed on the main frame. Two upper output rollers are rotatably installed on the conveying frame. The transmission shaft drives the upper output rollers to rotate through belt transmission. An upper conveyor belt is wound around the two upper output rollers. A collection box is placed on the bottom plate. Two lower conveyor rollers are rotatably installed on the bottom plate. A lower conveyor belt is wound around the two lower conveyor rollers. The upper output roller drives the lower conveyor roller to rotate through gear transmission and belt transmission.

[0014] Further, two groups of box support modules are provided on the bottom plate. The box support module includes a column and a fixed rod fixedly installed on the bottom plate. A lower pressing plate is slidably installed on the column. A lower pressing spring is arranged between the lower pressing plate and the bottom plate. An inner sliding rod is slidably installed inside the lower pressing plate. A spring is arranged between the inner sliding rod and the lower pressing plate. A support plate is fixedly installed on the inner sliding rod. A dust box is placed on the support plate. The support plate contacts the fixed rod. The dust box is located above the lower conveyor belt.

[0015] The qualified rock and soil after crushing falls onto the sieve plate. The too small dust falls into the dust box through the holes on the sieve plate, and the remaining rock and soil slides along the sieve plate onto the upper conveyor belt. The transmission shaft drives the upper output roller to rotate through belt drive, thereby driving the upper conveyor belt to move. The upper conveyor belt transports the rock and soil into the collection box. The upper output roller drives the lower conveyor roller to rotate through gear drive and belt drive, thereby driving the lower conveyor belt to move. When the weight of the dust in the dust box becomes larger and larger, it will drive the support plate to descend. The lower pressing plate slides along the column, and the lower pressing spring is compressed. At the same time, under the action of the fixed rod, the support plate and the inner sliding rod slide along the lower pressing plate, and the spring between the inner sliding rod and the lower pressing plate is compressed. When the support plate completely leaves below the dust box, the dust box falls onto the lower conveyor belt and is sent out by the lower conveyor belt.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: (1) The circulating mechanism provided by the present invention can push the rock and soil that has been preliminarily crushed but does not meet the size requirements into the dumping box, and pour the rock and soil in the dumping box into the crushing box for continuous cyclic crushing, with good crushing effect; (2) When the electric cylinder provided by the present invention contracts, it pushes the rock and soil that does not meet the size requirements in the screening frame into the dumping box, and pushes the rock and soil that meets the size requirements onto the sieve plate. When the electric cylinder extends, it drives the dumping box to rise and dumps the rock and soil into the crushing box, and so on, with high automation and good continuity; (3) When the crushing mechanism provided by the present invention crushes the rock and soil, it synchronously drives the screening frame to shake continuously, which is convenient for screening the rock and soil that meets the size requirements; (4) The collection mechanism provided by the present invention can collect the crushed rock and soil and fine dust separately for subsequent utilization. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the circulating mechanism of the present invention Figure 1 。

[0019] Figure 3 It is a schematic diagram of the structure of the circulating mechanism of the present invention Figure 2 。

[0020] Figure 4 It is Figure 3 a partial enlarged schematic diagram of place A in

[0021] Figure 5 It is a schematic diagram of the structure of the circulating mechanism of the present invention Figure 3 。

[0022] Figure 6 It is a schematic diagram of the structure of the crushing mechanism of the present invention Figure 1 。

[0023] Figure 7 It is a schematic diagram of the structure of the crushing mechanism of the present inventionFigure 2 .

[0024] Figure 8 is Figure 7 the partial enlarged schematic view at position B in

[0025] Figure 9 the structural schematic diagram of the crushing mechanism of the present invention Figure 3 .

[0026] Figure 10 the structural schematic diagram of the collection mechanism of the present invention Figure 1 .

[0027] Figure 11 the structural schematic diagram of the collection mechanism of the present invention Figure 2 .

[0028] Reference numerals in the attached drawings: 101 - main frame; 102 - frame; 103 - crushing box; 104 - screening frame; 105 - electric cylinder; 106 - sliding plate; 107 - connecting rod; 108 - pushing block; 109 - inner pushing plate; 110 - inner retracting rod; 111 - horizontal spring; 112 - sliding cylinder; 113 - triangular block; 114 - baffle; 115 - pulling plate; 116 - front pulling rope; 117 - front spring; 118 - upper spring; 119 - pushing frame; 120 - rear pulling rope; 121 - lower spring; 122 - front lifting block; 123 - rear lifting block; 124 - tipping frame; 125 - pouring slope plate; 126 - outer push rod; 127 - rear spring; 201 - crushing motor; 202 - main crushing wheel; 203 - transmission shaft; 204 - rotating dial; 205 - lever; 206 - vibrating rod; 207 - output gear; 208 - secondary crushing wheel; 209 - fixed toothed plate; 301 - sieve plate; 302 - upper output roller; 303 - upper conveyor belt; 304 - lower conveyor roller; 305 - collection box; 306 - lower conveyor belt; 307 - dust box; 308 - support plate; 309 - fixed rod; 310 - bottom plate; 311 - inner sliding rod; 312 - lower pressing plate; 313 - lower pressing spring; 314 - column; 315 - conveying frame. Specific embodiments

[0029] The following further describes the specific embodiments of the present invention with reference to the accompanying drawings.

[0030] Embodiment: Refer to Figures 1 - 10 , a geotechnical crushing device for civil engineering, including a circulating mechanism for circularly crushing geotechnical materials. The circulating mechanism includes a main frame 101, a frame 102 is fixedly installed on the main frame 101, a crushing box 103 is fixedly installed on the frame 102, a screening frame 104 is slidably installed below the crushing box 103, a crushing mechanism for crushing geotechnical materials and a collection mechanism for separately collecting the crushed geotechnical materials and dust are provided on the circulating mechanism;

[0031] The circulation mechanism includes a tipping box 124. A front lifting block 122 is rotatably installed on the tipping box 124. A rear lifting block 123 is slidably installed on the frame 102. The front lifting block 122 is slidably installed with the frame 102. One end of a rear pulling rope 120 is fixedly installed on the rear lifting block 123. The other end of the rear pulling rope 120 is fixedly installed with a pulling plate 115. One end of a front pulling rope 116 is fixedly installed on the front lifting block 122. The other end of the front pulling rope 116 is fixedly installed with the pulling plate 115.

[0032] The crushing mechanism includes a main crushing wheel 202 and a secondary crushing wheel 208 rotatably installed on the crushing box 103. A transmission shaft 203 is fixedly installed on the secondary crushing wheel 208.

[0033] As Figures 2 - 5 shown, the circulation mechanism further includes an upper spring 118 and a lower spring 121 arranged between the frame 102 and the pulling plate 115. A rear spring 127 is arranged between the rear lifting block 123 and the frame 102. A front spring 117 is arranged between the front lifting block 122 and the frame 102. The rear pulling rope 120 and the front pulling rope 116 respectively bypass a plurality of transmission wheels. A pushing frame 119 is fixedly installed on the front lifting block 122. A slope is arranged on the pushing frame 119.

[0034] As Figures 2 - 5 shown, an outer push rod 126 is slidably installed on the crushing box 103. An inverted slope plate 125 is fixedly installed on the outer push rod 126. A spring is arranged between the outer push rod 126 and the crushing box 103. A round hole is arranged on the rear lifting block 123. A convex column is arranged on the tipping box 124. The convex column of the tipping box 124 is located in the round hole of the rear lifting block 123. The diameter of the convex column on the tipping box 124 is smaller than the diameter of the round hole on the rear lifting block 123.

[0035] As Figures 2 - 5 shown, an electric cylinder 105 is fixedly installed on the crushing box 103. A sliding plate 106 is fixedly installed on the output end of the electric cylinder 105. A connecting rod 107 is fixedly installed on the sliding plate 106. A plurality of blanking grooves are arranged on the screening frame 104. A pushing block 108 is slidably installed on the screening frame 104. The pushing block 108 is fixedly installed with the connecting rod 107. A slope is arranged on the pushing block 108. An inner retracting rod 110 is slidably installed on the pushing block 108. A cross spring 111 is arranged between the inner retracting rod 110 and the pushing block 108. A sliding cylinder 112 is rotatably installed on the inner retracting rod 110. A torsion spring is arranged between the sliding cylinder 112 and the inner retracting rod 110. A triangular block 113 is slidably installed in the sliding cylinder 112. A spring is arranged between the triangular block 113 and the sliding cylinder 112. A slope is arranged on the triangular block 113. An inner pushing plate 109 and a baffle 114 are fixedly installed on the screening frame 104. A slope is arranged on the inner pushing plate 109.

[0036] When the electric cylinder 105 contracts, it drives the sliding plate 106, the connecting rod 107 and the material pushing block 108 to slide along the screening frame 104, pushing the crushed rock and soil along the screening frame 104. The rock and soil of appropriate size falls onto the sieve plate 301 along the material dropping groove of the screening frame 104, while the oversized rock and soil are pushed by the material pushing block 108 into the dumping frame 124. When the electric cylinder 105 contracts, it drives the retracting rod 110, the sliding cylinder 112 and the triangular block 113 to slide together towards the dumping frame 124. When the triangular block 113 contacts the pulling plate 115, under the action of the pulling plate 115, it drives the triangular block 113 to slide relative to the sliding cylinder 112, and the spring between the triangular block 113 and the sliding cylinder 112 is compressed. Subsequently, when the triangular block 113 passes through the pulling plate 115, the spring between the sliding cylinder 112 and the triangular block 113 rebounds. At this time, the triangular block 113 is located between the upper spring 118 and the lower spring 121. At this time, the material pushing block 108 just pushes the oversized rock and soil on the screening frame 104 into the dumping frame 124. Subsequently, the electric cylinder 105 starts to extend, driving the material pushing block 108, the retracting rod 110, the sliding cylinder 112 and the triangular block 113 to slide towards the baffle 114. The triangular block 113 drives the pulling plate 115 to move together. The upper spring 118 and the lower spring 121 are stretched, and the rear lifting block 123, the front lifting block 122 and the pushing frame 119 are synchronously lifted by pulling the front pull rope 116 and the rear pull rope 120, thereby driving the dumping frame 124 to rise. The front spring 117 and the rear spring 127 are compressed. When the pushing frame 119 contacts the outer push rod 126, it drives the outer push rod 126 and the pouring slope plate 125 to slide along the crushing box 103. The spring between the outer push rod 126 and the crushing box 103 is compressed, so that the pouring slope plate 125 moves away from above the dumping frame 124. When the dumping frame 124 reaches beside the pouring slope plate 125, the pulling plate 115 moves to the baffle 114. Under the action of the baffle 114, the upper part of the pulling plate 115 cannot move forward continuously, while the lower part of the pulling plate 115 continues to move forward, so that the rear pull rope 120 is continuously pulled while the front pull rope 116 is no longer pulled, so that the rear lifting block 123 continues to rise while the front lifting block 122 no longer rises. The rear lifting block 123 drives the dumping frame 124 to rotate around the front lifting block 122, so that the large pieces of rock and soil in the dumping frame 124 are poured into the crushing box 103 for re-crushing. When the retracting rod 110 moves to the inner pushing plate 109, under the action of the inner pushing plate 109, it drives the retracting rod 110 to slide inwards along the material pushing block 108, and the transverse spring 111 is compressed. At this time, the triangular block 113 is separated from the pulling plate 115, and the upper spring 118 and the lower spring 121 slowly rebound, so that the pulling plate 115 returns to the initial position. At the same time, the rear spring 127 and the front spring 117 rebound, so that the dumping frame 124 returns to the initial position. The slope on the material pushing block 108 causes the material pushing block 108 to push up the large pieces of rock and soil falling from the crushing box 103 when moving towards the inner pushing plate 109, so that the material pushing block 108 can smoothly return to the initial position.

[0037] AsFigures 6 - 9 As shown, the crushing mechanism further includes a crushing motor 201 fixedly installed on the crushing box 103. An output gear 207 is fixedly installed on the main crushing wheel 202. The crushing motor 201 drives the output gear 207 to rotate through gear transmission. A fixed toothed plate 209 is fixedly installed inside the crushing box 103. The main crushing wheel 202 and the secondary crushing wheel 208 are driven by gear meshing for transmission.

[0038] As Figures 6 - 9 shown, a rotating dial 204 is rotatably installed on the crushing box 103. Four dial rods 205 are fixedly installed on the rotating dial 204. A shaking rod 206 is fixedly installed on the screening frame 104. A spring is provided between the crushing box 103 and the screening frame 104. The output gear 207 drives the rotating dial 204 to rotate through belt transmission.

[0039] The rock and soil are put into the crushing box 103. The crushing motor 201 drives the output gear 207 and the main crushing wheel 202 to rotate through gear transmission. The main crushing wheel 202 drives the secondary crushing wheel 208 to rotate through gear transmission, and cooperates with the fixed toothed plate 209 to crush the rock and soil. The crushed rock and soil reach the screening frame 104. The secondary crushing wheel 208 simultaneously drives the transmission shaft 203 to rotate. The transmission shaft 203 drives the upper output roller 302 to rotate through belt transmission. At the same time, the output gear 207 drives the rotating dial 204 and the dial rods 205 to rotate through belt transmission. When the dial rod 205 contacts the shaking rod 206, it will drive the shaking rod 206 and the screening frame 104 to generate a small displacement relative to the crushing box 103. The spring between the crushing box 103 and the screening frame 104 is compressed. When the dial rod 205 passes through the shaking rod 206, the spring between the crushing box 103 and the screening frame 104 rebounds, causing the shaking rod 206 and the screening frame 104 to reset. The dial rod 205 continuously strikes the shaking rod 206, causing the screening frame 104 to vibrate continuously, so that the rock and soil that meet the size in the screening frame 104 can more smoothly fall out from the material dropping groove on the screening frame 104 onto the sieve plate 301.

[0040] As Figures 6 - 9 shown, the collection mechanism includes a sieve plate 301 fixedly installed on the frame 102. A number of holes are provided on the sieve plate 301. A bottom plate 310 is fixedly installed on the main frame 101. A conveying frame 315 is fixedly installed on the main frame 101. Two upper output rollers 302 are rotatably installed on the conveying frame 315. The transmission shaft 203 drives the upper output rollers 302 to rotate through belt transmission. An upper conveyor belt 303 is wound around the two upper output rollers 302. A collection box 305 is placed on the bottom plate 310. Two lower conveying rollers 304 are rotatably installed on the bottom plate 310. A lower conveyor belt 306 is wound around the two lower conveying rollers 304. The upper output rollers 302 drive the lower conveying rollers 304 to rotate through gear transmission and belt transmission.

[0041] As Figures 6 - 9As shown in the figure, there are two groups of box supporting modules arranged on the bottom plate 310. The box supporting module includes a column 314 and a fixed rod 309 fixedly installed on the bottom plate 310. A lower pressing plate 312 is slidably installed on the column 314. A lower pressing spring 313 is arranged between the lower pressing plate 312 and the bottom plate 310. An inner sliding rod 311 is slidably installed in the lower pressing plate 312. A spring is arranged between the inner sliding rod 311 and the lower pressing plate 312. A supporting plate 308 is fixedly installed on the inner sliding rod 311. A dust box 307 is placed on the supporting plate 308. The supporting plate 308 contacts the fixed rod 309. The dust box 307 is located above the lower conveyor belt 306.

[0042] The qualified rock and soil after crushing falls onto the sieve plate 301. The too small dust falls into the dust box 307 through the holes on the sieve plate 301. The remaining rock and soil slides along the sieve plate 301 onto the upper conveyor belt 303. The transmission shaft 203 drives the upper output roller 302 to rotate through belt transmission, thereby driving the upper conveyor belt 303 to move. The upper conveyor belt 303 conveys the rock and soil into the collection box 305. The upper output roller 302 drives the lower conveyor roller 304 to rotate through gear transmission and belt transmission, thereby driving the lower conveyor belt 306 to move. When the weight of the dust in the dust box 307 becomes larger and larger, it will drive the supporting plate 308 to descend. The lower pressing plate 312 slides along the column 314, and the lower pressing spring 313 is compressed. At the same time, under the action of the fixed rod 309, the supporting plate 308 and the inner sliding rod 311 slide along the lower pressing plate 312, and the spring between the inner sliding rod 311 and the lower pressing plate 312 is compressed. When the supporting plate 308 completely leaves below the dust box 307, the dust box 307 falls onto the lower conveyor belt 306 and is sent out by the lower conveyor belt 306.

[0043] The working principle of a geotechnical crushing device for civil engineering disclosed by the present invention is as follows: The geotechnical material is placed into the crushing box 103. The crushing motor 201 drives the output gear 207 and the main crushing wheel 202 to rotate through gear transmission. The main crushing wheel 202 drives the secondary crushing wheel 208 to rotate through gear transmission, and cooperates with the fixed tooth plate 209 to crush the geotechnical material. The crushed geotechnical material reaches the screening frame 104. At the same time, the secondary crushing wheel 208 drives the transmission shaft 203 to rotate. The transmission shaft 203 drives the upper output roller 302 to rotate through belt transmission. At the same time, the output gear 207 drives the rotating dial 204 and the dial rod 205 to rotate through belt transmission. When the dial rod 205 contacts the shaking rod 206, it will drive the shaking rod 206 and the screening frame 104 to produce a small displacement relative to the crushing box 103, and the spring between the crushing box 103 and the screening frame 104 is compressed. When the dial rod 205 passes through the shaking rod 206, the spring between the crushing box 103 and the screening frame 104 rebounds, causing the shaking rod 206 and the screening frame 104 to reset. The dial rod 205 continuously strikes the shaking rod 206, causing the screening frame 104 to vibrate continuously, so that the geotechnical material that meets the size in the screening frame 104 can more smoothly fall out from the material dropping groove on the screening frame 104 onto the sieve plate 301.When the electric cylinder 105 contracts, it drives the sliding plate 106, the connecting rod 107 and the material pushing block 108 to slide along the screening frame 104, pushing the crushed rock and soil along the screening frame 104. The rock and soil of appropriate size falls onto the sieve plate 301 along the material falling groove of the screening frame 104, while the oversized rock and soil are pushed by the material pushing block 108 into the dumping frame 124. When the electric cylinder 105 contracts, it drives the retracting rod 110, the sliding cylinder 112 and the triangular block 113 to slide together in the direction of the dumping frame 124. When the triangular block 113 contacts the pulling plate 115, under the action of the pulling plate 115, it will drive the triangular block 113 to slide relative to the sliding cylinder 112, and the spring between the triangular block 113 and the sliding cylinder 112 is compressed. Subsequently, when the triangular block 113 passes through the pulling plate 115, the spring between the sliding cylinder 112 and the triangular block 113 rebounds. At this time, the triangular block 113 is located between the upper spring 118 and the lower spring 121. At this time, the material pushing block 108 just pushes the oversized rock and soil on the screening frame 104 into the dumping frame 124. Subsequently, the electric cylinder 105 starts to extend, driving the material pushing block 108, the retracting rod 110, the sliding cylinder 112 and the triangular block 113 to slide in the direction of the baffle 114, driving the pulling plate 115 to move together through the triangular block 113. The upper spring 118 and the lower spring 121 are stretched, pulling the rear lifting block 123, the front lifting block 122 and the pushing frame 119 to rise synchronously through the front pulling rope 116 and the rear pulling rope 120, thereby driving the dumping frame 124 to rise. The front spring 117 and the rear spring 127 are compressed. When the pushing frame 119 contacts the outer push rod 126, it drives the outer push rod 126 and the pouring slope plate 125 to slide along the crushing box 103. The spring between the outer push rod 126 and the crushing box 103 is compressed, so that the pouring slope plate 125 moves away from above the dumping frame 124. When the dumping frame 124 reaches beside the pouring slope plate 125, the pulling plate 115 moves to the baffle 114. Under the action of the baffle 114, the upper part of the pulling plate 115 cannot move forward continuously, while the lower part of the pulling plate 115 continues to move forward, so that the rear pulling rope 120 is continuously pulled while the front pulling rope 116 is no longer pulled, so that the rear lifting block 123 continues to rise while the front lifting block 122 no longer rises. The rear lifting block 123 drives the dumping frame 124 to rotate around the front lifting block 122, so that the large pieces of rock and soil in the dumping frame 124 are poured into the crushing box 103 for re-crushing. When the retracting rod 110 moves to the inner pushing plate 109, under the action of the inner pushing plate 109, it drives the retracting rod 110 to slide inward along the material pushing block 108, and the transverse spring 111 is compressed. At this time, the triangular block 113 is separated from the pulling plate 115, and the upper spring 118 and the lower spring 121 slowly rebound, so that the pulling plate 115 returns to the initial position. At the same time, the rear spring 127 and the front spring 117 rebound, so that the dumping frame 124 returns to the initial position. The slope on the material pushing block 108 causes the material pushing block 108 to push up the large pieces of rock and soil falling from the crushing box 103 when moving towards the inner pushing plate 109, so that the material pushing block 108 can smoothly return to the initial position.The qualified rock and soil after crushing falls onto the sieve plate 301, and the too small dust falls into the dust box 307 through the holes on the sieve plate 301. The remaining rock and soil slides along the sieve plate 301 onto the upper conveyor belt 303. The transmission shaft 203 drives the upper output roller 302 to rotate through belt drive, thereby driving the upper conveyor belt 303 to move. The upper conveyor belt 303 conveys the rock and soil into the collection box 305. The upper output roller 302 drives the lower conveyor roller 304 to rotate through gear drive and belt drive, thereby driving the lower conveyor belt 306 to move. When the weight of the dust in the dust box 307 becomes larger and larger, it will drive the support plate 308 to descend. The lower pressing plate 312 slides along the column 314, and the lower pressing spring 313 is compressed. At the same time, under the action of the fixed rod 309, the support plate 308 and the inner sliding rod 311 slide along the lower pressing plate 312, and the spring between the inner sliding rod 311 and the lower pressing plate 312 is compressed. When the support plate 308 completely leaves below the dust box 307, the dust box 307 falls onto the lower conveyor belt 306 and is sent out by the lower conveyor belt 306.

[0044] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope of the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A rock and soil crushing device for civil engineering, comprising a circulating mechanism for circularly crushing rock and soil, characterized in that: The cyclic mechanism includes a main frame (101), a frame (102) is fixedly installed on the main frame (101), a crushing box (103) is fixedly installed on the frame (102), a screening frame (104) is slidably installed below the crushing box (103), and a crushing mechanism for crushing rock and soil and a collecting mechanism for separately collecting the crushed rock and soil and dust are provided on the cyclic mechanism; The cyclic mechanism includes a dumping frame (124), a front lifting block (122) is rotatably installed on the dumping frame (124), a rear lifting block (123) is slidably installed on the frame (102), the front lifting block (122) is slidably installed with the frame (102), one end of a rear pulling rope (120) is fixedly installed on the rear lifting block (123), the other end of the rear pulling rope (120) is fixedly installed with a pulling plate (115), one end of a front pulling rope (116) is fixedly installed on the front lifting block (122), and the other end of the front pulling rope (116) is fixedly installed with the pulling plate (115); The crushing mechanism includes a main crushing wheel (202) and a secondary crushing wheel (208) rotatably installed on the crushing box (103), and a transmission shaft (203) is fixedly installed on the secondary crushing wheel (208); The cyclic mechanism further includes an upper spring (118) and a lower spring (121) arranged between the frame (102) and the pulling plate (115), a rear spring (127) is arranged between the rear lifting block (123) and the frame (102), a front spring (117) is arranged between the front lifting block (122) and the frame (102), the rear pulling rope (120) and the front pulling rope (116) respectively bypass a plurality of transmission wheels, a pushing frame (119) is fixedly installed on the front lifting block (122), and a slope is provided on the pushing frame (119); An outer push rod (126) is slidably installed on the crushing box (103), a pouring slope plate (125) is fixedly installed on the outer push rod (126), a spring is arranged between the outer push rod (126) and the crushing box (103), a circular hole is provided on the rear lifting block (123), a convex column is provided on the dumping frame (124), the convex column of the dumping frame (124) is located in the circular hole of the rear lifting block (123), and the diameter of the convex column on the dumping frame (124) is smaller than the diameter of the circular hole on the rear lifting block (123); A cylinder (105) is fixedly installed on the crushing box (103). A sliding plate (106) is fixedly installed at the output end of the cylinder (105). A connecting rod (107) is fixedly installed on the sliding plate (106). A plurality of blanking grooves are provided on the screening frame (104). A pushing block (108) is slidably installed on the screening frame (104). The pushing block (108) is fixedly installed with the connecting rod (107). A slope is provided on the pushing block (108). An inward retracting rod (110) is slidably installed on the pushing block (108). A transverse spring (111) is provided between the inward retracting rod (110) and the pushing block (108). A sliding cylinder (112) is rotatably installed on the inward retracting rod (110). A torsion spring is provided between the sliding cylinder (112) and the inward retracting rod (110). A triangular block (113) is slidably installed in the sliding cylinder (112). A spring is provided between the triangular block (113) and the sliding cylinder (112). A slope is provided on the triangular block (113). An inner pushing plate (109) and a baffle (114) are fixedly installed on the screening frame (104). A slope is provided on the inner pushing plate (109).

2. The geotechnical crushing device for civil engineering according to claim 1, characterized in that: The crushing mechanism further includes a crushing motor (201) fixedly installed on the crushing box (103). An output gear (207) is fixedly installed on the main crushing wheel (202). The crushing motor (201) drives the output gear (207) to rotate through gear transmission. A fixed toothed plate (209) is fixedly installed in the crushing box (103). The main crushing wheel (202) and the secondary crushing wheel (208) are driven to rotate through gear meshing.

3. A rock-breaking device for civil engineering according to claim 2, characterized in that: A rotating dial (204) is rotatably installed on the crushing box (103). Four dial rods (205) are fixedly installed on the rotating dial (204). A jitter rod (206) is fixedly installed on the screening frame (104). A spring is provided between the crushing box (103) and the screening frame (104). The output gear (207) drives the rotating dial (204) to rotate through belt transmission.

4. A geotechnical crushing device for civil engineering according to claim 1, characterized in that: The collecting mechanism includes a sieve plate (301) fixedly installed on the frame (102). A plurality of holes are provided on the sieve plate (301). A bottom plate (310) is fixedly installed on the main frame (101). A conveying frame (315) is fixedly installed on the main frame (101). Two upper output rollers (302) are rotatably installed on the conveying frame (315). The transmission shaft (203) drives the upper output rollers (302) to rotate through belt transmission. An upper conveyor belt (303) is wound around the two upper output rollers (302). A collecting box (305) is placed on the bottom plate (310). Two lower conveying rollers (304) are rotatably installed on the bottom plate (310). A lower conveyor belt (306) is wound around the two lower conveying rollers (304). The upper output rollers (302) drive the lower conveying rollers (304) to rotate through gear transmission and belt transmission.

5. An earth-rock breaking device for civil engineering according to claim 4, characterized in that: There are two groups of box supporting modules arranged on the bottom plate (310). The box supporting module includes a column (314) and a fixed rod (309) fixedly installed on the bottom plate (310). A lower pressure plate (312) is slidably installed on the column (314). A lower pressure spring (313) is arranged between the lower pressure plate (312) and the bottom plate (310). An inner sliding rod (311) is slidably installed in the lower pressure plate (312). A spring is arranged between the inner sliding rod (311) and the lower pressure plate (312). A supporting plate (308) is fixedly installed on the inner sliding rod (311). A dust box (307) is placed on the supporting plate (308). The supporting plate (308) contacts the fixed rod (309). The dust box (307) is located above the lower conveyor belt (306).

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