CN108176433A - A kind of crusher for being used for chemical materials or building stone - Google Patents

Abstract

The invention discloses a kind of crushers for being used for chemical materials or building stone, including body (10) and precrushing mechanism (20), body (10) including rack (110), eccentric shaft (111), determine jaw (112) and dynamic jaw (113).Determine to form crushing chamber (120) between jaw (112) and dynamic jaw (113), precrushing mechanism (20) includes precrushing head (210) and adjusting part (211), mobilizable be set to of precrushing head (210) is determined on jaw (112), adjusting part (211) for drive precrushing head (210) move back and forth.Crusher provided by the invention, before being crushed to industrial chemicals or building stone, precrushing is carried out to it first, make raw material cracked, destroy the surface stress of industrial chemicals or building stone, so as to make it broken more easily, crushing effect is good, and crusher will not be caused to damage because raw material hardness is larger.

Description

A kind of crusher for being used for chemical materials or building stone

Technical field

The present invention relates to crushing mechanism technical fields, and in particular to a kind of Taw crushing apparatus more particularly to one kind are used for The crusher of the broken chemical materials that material is harder, volume is slightly larger or building stone.

Background technology

Jaw crusher is commonly called as jaw and breaks also known as tiger mouthful.Crusher chamber is formed by dynamic two pieces of jaws of jaw and quiet jaw, is simulated Two jaw movements of animal and the crusher for completing material crushing operation.Jaw crusher have it is simple in structure, manufacture easily, work The advantages that reliable, is widely used in the broken of the various ores of chemical industry and bulk materials.

Application No. is CN201610432681.8, the Chinese inventions of entitled " jaw crusher motor integral structure " A kind of jaw crusher is provided in patent application, this crusher is simple pendular jaw crusher, and jaw crusher is mainly by machine Frame, eccentric shaft determine the structures such as jaw and dynamic jaw composition, and eccentric shaft drives dynamic jaw to swing so that dynamic jaw and determine jaw to material into Row is broken.In chemical field, the hardness of part material is larger, and the crushing effect using traditional jaw crusher is poor.

Invention content

The purpose of the present invention is to provide a kind of chemical industry crushers, are effectively improved crushing effect, and protect crusher It is not easily damaged during the work time.

In order to solve the above technical problem, the present invention provides following technical solutions：

A kind of crusher for being used for chemical materials or building stone, the crusher include body and precrushing mechanism, institute It states body to include rack, eccentric shaft, determine jaw and dynamic jaw, the eccentric shaft is rotatably supported in the rack, the eccentric shaft One end be provided with the belt wheel of power source drive, the other end of the eccentric shaft is provided with flywheel, described to determine jaw and be fixed on The rack, one end of the dynamic jaw is sheathed on the eccentric shaft and the reciprocally swinging under the drive of the eccentric shaft, described fixed Crushing chamber is formed between jaw and the dynamic jaw；The precrushing mechanism includes precrushing head and adjusting part, the precrushing head It is mobilizable be set to it is described determine jaw, the adjusting part is for driving the precrushing head to move back and forth, so that described pre- broken Broken head, which has, to be entered the crushing chamber and the precrushing state of precrushing is carried out to raw material and is detached from the buffering of the crushing chamber State.

Further, described to determine jaw and be provided with accommodating cavity, the first precrushing hole and the second precrushing hole, described first is pre- broken Broken hole and the second precrushing hole are coaxially disposed and are connected with the accommodating cavity, and the second precrushing hole is crushed with described Room connects；The adjusting part includes the first slide bar, the second slide bar, U-shaped part, resetting spring and reciprocating member, first slide bar The first precrushing hole is slidably arranged in, second slide bar is slidably arranged in the second precrushing hole, institute It states and is located between the first slide bar and second slide bar by U-shaped part connection and first slide bar and second slide bar The both sides of the U-shaped part, the U-shaped part is for U-shaped and in the accommodating cavity, the opening direction of the U-shaped part and described the The axis of one slide bar is vertical, and the precrushing head is fixed on one end far from the U-shaped part of second slide bar, described pre- broken Broken head is coniform, and the diameter of section of the precrushing head is gradually reduced from one end close to second slide bar to the other end； The resetting spring is sheathed on first slide bar and is respectively held against the inner surface of the accommodating cavity and the U-shaped part, described multiple Position spring causes the precrushing head to have the trend moved towards the crushing chamber；The reciprocating member is set to the accommodating cavity Interior, the reciprocating member includes two blocks of parallel and coaxial arrangement plectanes, and the plectane is rotatably supported in by connecting shaft The rack is connected with power rail between two blocks of plectanes, the axis of plectane described in the axis runout of the power rail；It is described U-shaped part is located between two blocks of plectanes, and the reciprocating member rotates under the drive of power source and drives the power rail around institute Connection shaft rotation is stated, the distance between the opening of the U-shaped part and the pivot center of the reciprocating member are the first distance, described The shortest distance between the pivot center of power rail and the reciprocating member is second distance, and first distance is less than described second Distance, so that in the reciprocating member rotation process, the power rail, which has, to be entered in the U-shaped part and drives the U-shaped part It is directed away from the first state of crushing chamber direction movement and is detached from the U-shaped part and the U-shaped part is in the reset bullet Second state of return under the action of spring.

Further, two opposite outer surfaces of the U-shaped part are both provided with connecting sleeve, are set in the connecting sleeve There are the first internal thread, one end of the close U-shaped part of first slide bar and the close U-shaped part of second slide bar One end be both provided with connecting portion, the connecting portion is provided with the first external screw thread with first screw-internal thread fit, the company Socket part is threaded engagement in the connecting sleeve.

Further, the power rail is round bar, and the spacing between two opposite inner surfaces of the U-shaped part is more than described The diameter of power rail, two free ends of the U-shaped part have guiding slope surface, and the section of the guiding slope surface is arc-shaped.

Further, the precrushing mechanism further includes electrodeless variable-speed component, and the electrodeless variable-speed component includes the first chain Wheel, driving member and tensioner, first sprocket wheel are coaxially disposed with the belt wheel and can rotate synchronously, and the driving member includes Middle part and multiple hydraulic telescopic rods, the middle part is coaxial fixed with connection shaft one of them described and synchronous can turn Dynamic, the hydraulic telescopic rod is radially extended along the middle part, circumferential direction of the multiple hydraulic telescopic rod along the middle part It is uniformly distributed, one end far from the middle part of the hydraulic telescopic rod is provided with the second sprocket wheel, first sprocket wheel and institute It states the second sprocket wheel and passes through chain drive；The tensioner includes sliding block, third sprocket wheel and tensioning spring, is provided in the rack Sliding slot, the sliding block are slidably arranged in the sliding slot, and the third sprocket wheel is rotatably set to the sliding block, described Third sprocket wheel and the chain interoperation, the tensioning spring are set in the sliding slot, and the both ends of the tensioning spring are supported respectively The inner surface of sliding slot and the sliding block are stated in residence, and the tensioning spring makes the third sprocket wheel compressing in the chain and makes described Chain tension.

Further, the middle part includes casing and at least one anti-resistor, and described sleeve pipe is sheathed on one of institute It states connection shaft and can relatively rotate, the anti-resistor includes deterring pipe, brake pad and deterring spring, is set in described sleeve pipe Have tapped through hole, be provided with the second internal thread in the tapped through hole, the pipe that deters for tubulose, it is described deter pipe one end be Blind end, the other end for deterring pipe are openend, and the outer surface for deterring pipe is provided with matches with second internal thread The second external screw thread closed, the pipe that deters are inserted into the tapped through hole and described deter pipe and the tapped through hole screw thread is nibbled Close, the openend is located in the tapped through hole, the brake pad be slidably embedded at described in deter in pipe, it is described to deter Spring is deterred described in being set in pipe, and the both ends for deterring spring are connected to the blind end and the brake pad, institute respectively It states and deters spring the brake pad is pressed in the connection shaft, described sleeve pipe passes through the brake pad and the connection shaft Between frictional force drive plectane rotation, when the rotary resistance of the connection shaft is more than default resistance threshold value, in described Between portion rotation and it is described connection shaft it is motionless.

Further, the connection shaft of multiple plectanes is synchronized with the movement by belt.

Further, the outer sheath of the power rail is equipped with roller, the inner surface of the roller and the power rail it is outer At least three bearings are provided between surface.

Further, the body further includes stretching assembly, and the stretching assembly includes stretch rod and extension spring, described Stretching through-hole, the spherical shape of inner surface recess for stretching through-hole are provided in rack, described stretch in through-hole is provided with work Moving part, the movable part tubulose penetrating for both ends, the outer surface of the movable part is the surface of revolution being defined by a radius, described Multiple balls are provided between the outer surface of movable part and the inner surface for stretching through-hole；The stretch rod is slidably worn In in the movable part, one end of the stretch rod is articulated with one end far from the eccentric shaft of the dynamic jaw, the stretching Spring pocket is set on the stretch rod, and the both ends of the extension spring are connected to the rack and the stretch rod, the drawing respectively Stretch spring make the dynamic jaw far from the eccentric shaft one end have be directed away from it is described determine jaw direction move trend.

Further, the body further includes diagonal brace component, and the diagonal brace component has slide and tilt prop, the rack On be provided with slideway, the slide is slidably embedded in the slideway, and locking bolt and sliding are provided in the slideway Spring is provided with multiple lock holes in the slideway, and the multiple lock hole is distributed along the glide direction of the slide, the lock Determine hole and be provided with third internal thread, the locking bolt is provided with the third external screw thread with the third screw-internal thread fit, described Locking bolt selectivity is threaded engagement in one of them described lock hole, to change one of stop position of the slide It puts, the sliding spring is connected to the inner surface of the slideway and the slide respectively, and the spring that slides is by the slide pressure Tightly in the locking bolt, one end of the tilt prop is articulated with the dynamic jaw, and the other end of the tilt prop is articulated with slide, The angle between the side of the eccentric shaft and the slideway of the tilt prop is more than 90 °；The tilt prop is to described When the pressure that slide applies is more than preset pressure threshold value, the slide can be slided along the slideway, be also set up in the slideway There is sensor, the sensor is used to detect the position of the slide, and the sensor detects the slide in the slideway The power source is controlled to be stopped during interior slip.

The advantageous effect that is reached of the present invention is：

It is first before being crushed to industrial chemicals provided by the present invention for chemical materials or the crusher of building stone Precrushing first is carried out to it, make raw material cracked etc., the surface stress of destruction industrial chemicals or building stone, so that right Industrial chemicals or building stone it is broken more easily, crushing effect is good, and will not cause because raw material hardness is larger Crusher damages.

Description of the drawings

Fig. 1 is the structure diagram of chemical industry crusher provided in an embodiment of the present invention；

Fig. 2 is the close-up schematic view at A in Fig. 1；

Fig. 3 is the structure diagram of diagonal brace component；

Fig. 4 is the close-up schematic view at B in Fig. 1；

Fig. 5 is the structure diagram of precrushing mechanism；

Fig. 6 is the matching relationship schematic diagram of precrushing head and adjusting part；

Fig. 7 is the structure diagram of the U-shaped part of Fig. 6；

Fig. 8 is the structure diagram of the first slide bar of Fig. 6；

Fig. 9 is the second slide bar of Fig. 6 and the structure diagram of precrushing head；

Figure 10 is the structure diagram of the reciprocating member of Fig. 6；

Figure 11 is the matching relationship schematic diagram of reciprocating member and adjusting part；

Figure 12 is the structure diagram of electrodeless variable-speed component；

Figure 13 is the partial sectional view of Figure 12.

Reference numeral corresponds to as follows：

1- crushers；

10- bodies；20- precrushings mechanism；

110- racks；111- eccentric shafts；112- determines jaw；113- moves jaw；114- power sources；115- belt wheels；116- stretching groups Part；117- diagonal brace components；120- crushing chambers；121- accommodating cavities；The first precrushings of 122- hole；The second precrushings of 123- hole；125- Sliding slot；127- stretch rods；128- extension springs；129- movable parts；130- balls；131- slideways；132- slides；133- diagonal braces Plate；134- locking bolts；135- slides spring；136- lock holes；

210- precrushing heads；211- adjusting parts；212- electrodeless variable-speed components；The first slide bars of 215-；The second slide bars of 216-； 217-U shape parts；218- resetting springs；219- reciprocating members；221- connecting sleeves；222- connecting portions；223- guides slope surface；225- justifies Plate；226- connection shafts；227- power rails；228- rollers；The first sprocket wheels of 231-；232- driving members；233- tensioners；In 235- Between portion；236- hydraulic telescopic rods；The second sprocket wheels of 237-；239- sliding blocks；240- third sprocket wheels；241- tensioning springs；243- casings； The anti-resistors of 244-；245- deters pipe；246- brake pads；247- deters spring.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes.

It please refers to shown in Fig. 1, an embodiment of the present invention provides a kind of crusher 1 for chemical materials or building stone, The crusher 1 is mainly used for the chemical materials harder to material, volume is slightly larger or building stone crushes, and certainly, uses this Crusher 1 carries out other materials broken also possible.

It is described in detail below for all parts of the crusher 1.

Crusher 1 is mainly made of body 10 and precrushing mechanism 20, and body 10, which is used to implement, crushes industrial chemicals, Precrushing mechanism 20 is used to carry out precrushing to industrial chemicals.

When industrial chemicals or building stone to be broken is poured into crusher 1, carried out first by precrushing mechanism 20 pre- broken It is broken, the surface stress of industrial chemicals is destroyed, is then further crushed using body 10.

The structure of body 10 is referred to the prior art, and in the present embodiment, body 10 includes rack 110, eccentric shaft 111st, determine jaw 112, dynamic jaw 113, stretching assembly 116 and diagonal brace component 117.

Wherein, rack 110 is used to be supported all parts.

Eccentric shaft 111 is rotatably supported in rack 110, and one end of eccentric shaft 111 is provided with belt wheel 115, eccentric shaft 111 The other end be provided with flywheel.

Belt wheel 115 is driven by power source 114 to be rotated, and passes through belt transmission between belt wheel 115 and power source 114.

The axis of eccentric shaft 111 and the axis of belt wheel 115 are misaligned, and belt wheel 115 rotates under the drive of power source 114 When, the axis of eccentric shaft 111 moves in a circle around the axis of belt wheel 115.

Flywheel store kinetic energy and can be discharged in 115 high speed rotation of belt wheel when 115 rotating speed of belt wheel reduces, for reducing Velocity perturbation during machine operation.

Determine jaw 112 and be fixed on rack 110, determine jaw 112 and remained stationary as relative to rack 110, the side for determining jaw 112 has jaw Plate, jaw are used to contact with industrial chemicals.

One end of dynamic jaw 113 is sheathed on eccentric shaft 111, and in 111 rotation process of eccentric shaft, the one end for moving jaw 113 can be with It is moved with eccentric shaft 111, the reciprocally swinging under the action of stretching assembly 116 and diagonal brace component 117.

Determine to form crushing chamber 120 between jaw 112 and dynamic jaw 113, the top of crushing chamber 120 is big, under bottom end, industrial chemicals from The top of crushing chamber 120 enters in crushing chamber 120, and crushing chamber 120 is the chamber structure of an all round closure, material to be broken In crushing chamber 120, it is broken that extruding occlusion is carried out under the action of dynamic jaw 113.

It please refers to shown in Fig. 2, stretching assembly 116 includes stretch rod 127 and extension spring 128, and drawing is provided in rack 110 Through-hole is stretched, stretch rod 127 is slidably arranged in stretching through-hole, and one end of stretch rod 127 is articulated with the separate eccentric of dynamic jaw 113 One end of axis 111.

Extension spring 128 is sheathed on stretch rod 127, and the both ends of extension spring 128 are connected to rack 110 and stretch rod respectively 127, extension spring 128 has one end of the separate eccentric shaft 111 of jaw 113 to be directed away from determine that 112 direction of jaw moves becomes Gesture.

It please refers to shown in Fig. 3, diagonal brace component 117 has slide 132 and tilt prop 133, and one end of tilt prop 133 is articulated with Dynamic jaw 113, the other end of tilt prop 133 are articulated with slide 132.

The operation principle of body 10 is as follows：

Power source 114 is rotated by belt driving pulley 115, and belt wheel 115 drives eccentric shaft 111 to rotate, and eccentric shaft 111 makes Jaw 113 must be moved to move up and down and swing.

When dynamic jaw 113 rises, the angle between tilt prop 133 and dynamic jaw 113 becomes larger, so as to push dynamic jaw 113 to calmly Jaw 112 is close, in this case, determine jaw 112 industrial chemicals is crushed or is split with dynamic 113 collective effect of jaw it is broken.

When dynamic 113 downlink of jaw, the angle between tilt prop 133 and dynamic jaw 113 becomes smaller, and extension spring 128 pulls pull rod, So as to make jaw 113 far from jaw 112 is determined, at this point, broken material is discharged from the discharge gate of crushing chamber 120.

In 115 rotation process of belt wheel, above-mentioned action is repeated in body 10, so as to fulfill the crushing to industrial chemicals.

Before being crushed to industrial chemicals or building stone, first industrial chemicals is carried out using precrushing mechanism 20 pre- broken Broken, the concrete structure of precrushing is as follows：

It please refers to shown in Fig. 4, determines jaw 112 and be provided with accommodating cavity 121, the first precrushing hole 122 and the second precrushing hole 123, wherein, the first precrushing hole 122 and the second precrushing hole 123 are connected with accommodating cavity 121, and the second precrushing hole 123 connect with crushing chamber 120.

First precrushing hole 122 and the second precrushing hole 123 are circular hole, the first precrushing hole 122 and the second precrushing Hole 123 is coaxially disposed.

It please refers to shown in Fig. 4, Fig. 5, precrushing mechanism 20 includes precrushing head 210, adjusting part 211 and electrodeless variable-speed group Part 212, electrodeless variable-speed component 212 are please referred to shown in Figure 12, and precrushing head 210 for contacting industrial chemicals, use by adjusting part 211 In moving back and forth precrushing head 210, electrodeless variable-speed component 212 is used to adjust the reciprocating frequency of precrushing head 210.

Specifically, mobilizable be set to of precrushing head 210 determines jaw 112, precrushing head 210 is coniform, precrushing head 210 diameter of section gradually increases from one end close to crushing chamber 120 to the other end.

Precrushing head 210 needs to be made of high strength alloy material, in 210 reciprocatory movement of precrushing head, with change Work raw material is contacted and is detached from repeatedly.

Adjusting part 211 is used to that precrushing head 210 to be driven to move back and forth so that 210 pairs of industrial chemicals of precrushing head carry out Impact, in this process, precrushing head 210 have two states, and respectively precrushing head 210 enters crushing chamber 120 and right Raw material carries out the precrushing state of precrushing and precrushing head 210 is detached from the buffer status of crushing chamber 120.

It is necessary to have certain impact forces when precrushing head 210 is in precrushing state, therefore, present embodiments provide Following scheme：

It please refers to shown in Fig. 6, the concrete structure of adjusting part 211 is referred to but is not limited to following scheme：Adjusting part 211 include the first slide bar 215, the second slide bar 216, U-shaped part 217, resetting spring 218 and reciprocating member 219.

First slide bar 215 and the second slide bar 216 are round bar, and the diameter of the first slide bar 215 and the first precrushing hole 122 Corresponding, the diameter of the second slide bar 216 is corresponding with the second precrushing hole 123, so that the first slide bar 215 is slidably arranged in first Precrushing hole 122, the second slide bar 216 are slidably arranged in the second precrushing hole 123.

For U-shaped part 217 between the first slide bar 215 and the second slide bar 216, the section of U-shaped part 217 is U-shaped.

U-shaped part 217 is located in accommodating cavity 121 and can be moved in accommodating cavity 121.

First slide bar 215 is connect with one of outer surface of U-shaped part 217, and the second slide bar 216 and U-shaped part 217 are in addition One outer surface connection, the first slide bar 215 and the second slide bar 216 are located at the both sides of U-shaped part 217.

The connection mode of first slide bar 215 and 217 and second slide bar 216 of U-shaped part and U-shaped part 217 may be used following Scheme：

It please refers to shown in Fig. 7, two opposite outer surfaces of U-shaped part 217 are both provided with connecting sleeve 221, connecting sleeve 221 Inside it is provided with the first internal thread.

It please refers to shown in Fig. 8, Fig. 9, one end of close U-shaped part 217 of the first slide bar 215 and leaning on for the second slide bar 216 One end of nearly U-shaped part 217 is both provided with connecting portion 222, and connecting portion 222 is provided with the first outer spiral shell with the first screw-internal thread fit Line, connecting portion 222 are threaded engagement in connecting sleeve 221.

Wherein, the opening direction of U-shaped part 217 is set along the radial direction of the first slide bar 215.

Precrushing head 210 is fixed on one end of the separate U-shaped part 217 of the second slide bar 216.

U-shaped part 217 in reciprocatory movement, can drive precrushing head 210 to enter crushing chamber 120 in accommodating cavity 121 Or be detached from out of crushing chamber 120, the movement of U-shaped part 217 is controlled by two parts, respectively resetting spring 218 and reciprocating member 219。

Wherein, resetting spring 218 is sheathed on the first slide bar 215 and is respectively held against the inner surface of accommodating cavity 121 and U-shaped part 217, resetting spring 218 is so that precrushing head 210 has the trend moved towards crushing chamber 120.

Reciprocating member 219 is set in accommodating cavity 121, and for U-shaped part 217 to be pushed to be directed away from the direction of crushing chamber 120 Movement, in the process, resetting spring 218 compresses, and when reciprocating member 219 is detached from U-shaped part 217, resetting spring 218 is multiple Position.

It please refers to shown in Figure 10, Figure 11, the concrete structure of reciprocating member 219 is：Reciprocating member 219 includes two blocks of plectanes 225, circle Plate 225 is circular plate, and two blocks of plectanes 225 are parallel and are coaxially disposed, and U-shaped part 217 is held between two blocks of plectanes 225, and U Shape part 217 can move between two blocks of plectanes 225, and two blocks of plectanes 225 are for limiting U-shaped part 217, so as to make U-shaped Part 217 can be slided but cannot be rotated.

Plectane 225 is rotatably supported in rack 110 by connecting shaft 226, and connecting can between shaft 226 and body 10 To set bearing.

Power rail 227, the axis of the axis runout plectane 225 of power rail 227 are connected between two blocks of plectanes 225.

It please refers to shown in Fig. 5,227 outer sheath of power rail is equipped with roller 228, the inner surface of roller 228 and power rail 227 At least three bearings are provided between outer surface, three bearings are uniformly distributed along the axis of power rail 227, and the inner ring of bearing is with moving Power bar 227 is fixed, and the outer ring and the outer surface of roller 228 of bearing are fixed.

For roller 228 for contacting U-shaped part 217, resistance when relative motion occurs for the two is smaller.

Reciprocating member 219 rotates under the drive of power source 114 and power rail 227 is driven to be rotated around connection shaft 226.

For convenience, it is first defined as below：Between the opening of U-shaped part 217 and the pivot center of reciprocating member 219 Distance is the first distance, and the shortest distance between power rail 227 and the pivot center of reciprocating member 219 is second distance, is being added After roller 228, second distance may be considered the shortest distance between the pivot center of roller 228 and reciprocating member 219.

First distance is less than second distance, correspondingly, the radius of roller 228 is less than the axis of roller 228 and reciprocating member 219 The distance between pivot center.

The matching relationship of reciprocating member 219 and U-shaped part 217 is please referred to shown in Figure 11.

In 219 rotation process of reciprocating member, power rail 227, which has, to be entered in U-shaped part 217 and drives U-shaped part 217 towards remote First state and disengaging U-shaped part 217 and U-shaped part 217 from the movement of 120 direction of crushing chamber is under the action of resetting spring 218 Second state of return.

When power rail 227 is in first state, roller 228 and the inner surface of U-shaped part 217 are in rolling contact.

In addition, power rail 227 is round bar, the spacing between two opposite inner surfaces of U-shaped part 217 is more than power rail 227 Diameter, also, the spacing between the diameter of roller 228 two inner surfaces opposite again smaller than U-shaped part 217.

The reason of above-mentioned design, is, if industrial chemicals or building stone to be broken is really up to the mark, causes U-shaped part 217 can not Preset right stop is moved to, the position of roller 228 and U-shaped part 217 can be caused deviation occur, roller 228 is difficult to enter U-shaped part In 217.When the spacing between the diameter of roller 228 two inner surfaces opposite again smaller than U-shaped part 217, even if U-shaped part 217 Position lead to not to reach right stop because of obstruction, roller 228 can also enter in U-shaped part 217, the diameter and U-shaped of roller 228 The relationship of spacing between two opposite inner surfaces of part 217 can be set as needed.

Two free ends of U-shaped part 217 have guiding slope surface 223, and the section of guiding slope surface 223 is arc-shaped.Guide slope Face 223 can more smoothly be entered in U-shaped part 217 with guide roller 228.

It please refers to shown in Figure 12, the concrete structure of electrodeless variable-speed component 212 is：Electrodeless variable-speed component 212 includes the first chain Wheel 231, driving member 232 and tensioner 233.

First sprocket wheel 231 is coaxially disposed with belt wheel 115 and can rotate synchronously, and is set on the first sprocket wheel 231 with teeth.

Driving member 232 includes middle part 235 and multiple hydraulic telescopic rods 236, and middle part 235 is cylindric.

Middle part 235 connect 226 coaxial fixation of shaft with one of them and can rotate synchronously.

Machine breakdown caused by resistance is excessive in order to prevent, present embodiments provides following scheme, please refers to shown in Figure 13, Middle part 235 includes casing 243 and at least one anti-resistor 244.

Casing 243 is sheathed on one of connection shaft 226, clearance fit and energy between casing 243 and connection shaft 226 It is enough to relatively rotate.

The connection shaft 226 of multiple plectanes 225 is synchronized with the movement by belt.

For rotating synchronously casing 243 and connection shaft 226, the rotary resistance of connection shaft 226 is more than anti-resistor 244 During default resistance threshold value, middle part 235 rotates and to connect shaft 226 motionless.

Specifically, anti-resistor 244 includes deterring pipe 245, brake pad 246 and deters spring 247.The meaning of anti-resistor 244 For the component that for preventing resistance excessive when damages machine.

Tapped through hole is provided on casing 243, the second internal thread is provided in tapped through hole, pipe 245 is deterred as tubulose, prevents The outer surface of resistance pipe 245 is provided with the second external screw thread with the second screw-internal thread fit, deters in the insertion tapped through hole of pipe 245 and anti- Hinder pipe 245 and the engagement of tapped through hole screw thread.

Pipe 245 is deterred by screwing, thus it is possible to vary deters position of the pipe 245 in tapped through hole.

The one end for deterring pipe 245 is blind end, and the other end for deterring pipe 245 is openend, and openend is located at tapped through hole It is interior.

Brake pad 246 is slidably embedded at and deters in pipe 245, and brake pad 246 contacts, also, rub with connection shaft 226 The end face of the close connection shaft 226 of cleaning block 246 is cylindrical surface.

It deters spring 247 and is set to and deter in pipe 245, the both ends for deterring spring 247 are connected to blind end and friction respectively Block 246 deters spring 247 and brake pad 246 is pressed in connection shaft 226, and casing 243 is by brake pad 246 with connecting shaft Frictional force between 226 drives plectane 225 to rotate.

When deterring position of the pipe 245 in tapped through hole and changing, the elastic force for deterring spring 247 can be adjusted, with Change makes the default resistance threshold value that casing 243 relatively rotates with connecting shaft 226.

Hydraulic telescopic rod 236 is radially extended along middle part 235, circumferential direction of multiple hydraulic telescopic rods 236 along middle part 235 It is uniformly distributed.Hydraulic telescopic rod 236 is scalable under the action of hydraulic pressure, so as to adjust length.

One end of the separate middle part 235 of hydraulic telescopic rod 236 is provided with the second sprocket wheel 237, the first sprocket wheel 231 and second Sprocket wheel 237 passes through chain drive.

When the length of hydraulic telescopic rod 236 changes, the diameter of driving member 232 changes, so as to change gearratio, Further, since the variation free of discontinuities of the length of hydraulic telescopic rod 236, thus can realize electrodeless variable-speed, precrushing head 210 it is reciprocal Motion frequency adjustable range is wider.

In 236 telescopic process of hydraulic telescopic rod, necessarily lead to the relaxation or tensioning of chain, needed at this time using tensioner 233 pairs of the elastic of chain are adjusted.

Specifically, tensioner 233 includes sliding block 239, third sprocket wheel 240 and tensioning spring 241.

Sliding slot 125 is provided in rack 110, sliding block 239 is slidably arranged in sliding slot 125, and third sprocket wheel 240 can turn Dynamic is set to sliding block 239, third sprocket wheel 240 and chain interoperation, and tensioning spring 241 is set in sliding slot 125, tensioning spring 241 both ends are respectively held against the inner surface of sliding slot 125 and sliding block 239, and tensioning spring 241 makes third sprocket wheel 240 be pressed in chain And make chain tension.

In order to make the movement of stretching assembly 116 more smooth, following scheme may be used：Stretch the inner surface recess of through-hole Spherical shape.

It stretches and movable part 129 is provided in through-hole, the tubulose penetrating for both ends of movable part 129, the outer surface of movable part 129 For the surface of revolution being defined by a radius, multiple balls are provided between the outer surface of movable part 129 and the inner surface for stretching through-hole 130；Stretch rod 127 is slidably arranged in movable part 129,

In the prior art, when industrial chemicals or building stone to be broken is harder is difficult to broken, dynamic jaw 113 can be prevented Proper motion, and then jaw etc. may be destroyed, it is general to be carried out more using the destruction of tilt prop 133 is made in order to improve the problem It mends, this mode can destroy the construction of crusher 1, increase production cost.

Improvement project is proposed in the present embodiment：Slideway 131 is provided in rack 110, locking is provided in slideway 131 Bolt 134 and sliding spring 135, are provided with multiple lock holes 136 in slideway 131.

Lock hole 136 is circular hole, and multiple lock holes 136 are distributed along the glide direction of slide 132, and lock hole 136 is provided with Third internal thread, locking bolt 134 are provided with the third external screw thread with third screw-internal thread fit, 134 selectivity of locking bolt It is threaded engagement in one of lock hole 136.

Slide 132 is slidably embedded in slideway 131, one of stop position of the locking bolt 134 as slide 132 It puts, slide 132 is limited.

Sliding spring 135 is connected to the inner surface of slideway 131 and slide 132 respectively, and sliding spring 135 presses slide 132 Tightly the angle between locking bolt 134, the side of the close eccentric shaft 111 of tilt prop 133 and slideway 131 is more than 90 °.

When tilt prop 133 is more than preset pressure threshold value to the pressure that slide 132 applies, slide 132 can be slided along slideway 131 It is dynamic.

In addition, in order to which staff is enable to pinpoint the problems faster, sensor, sensor are additionally provided in slideway 131 For detecting the position of slide 132, sensor detects that slide 132 slides time control brake force source 114 in slideway 131 and stops work Make.

Claims (10)

1. a kind of crusher for being used for chemical materials or building stone, including body (10) and precrushing mechanism (20), the machine Body (10) including rack (110), eccentric shaft (111), determine jaw (112) and dynamic jaw (113), the eccentric shaft (111) is rotatable The rack (110) is supported in, one end of the eccentric shaft (111) is provided with the belt wheel of power source (114) drive (115), the other end of the eccentric shaft (111) is provided with flywheel, described to determine jaw (112) and be fixed on the rack (110), described One end of dynamic jaw (113) is sheathed on the eccentric shaft (111) and the reciprocally swinging under the drive of the eccentric shaft (111), described Determine to form crushing chamber (120) between jaw (112) and the dynamic jaw (113)；It is characterized in that：The precrushing mechanism (20) includes Precrushing head (210) and adjusting part (211), the precrushing head (210) is mobilizable to be set to and described determines jaw (112), institute Adjusting part (211) is stated for the precrushing head (210) to be driven to move back and forth so that the precrushing head (210) have into Enter the crushing chamber (120) and the precrushing state of precrushing is carried out to raw material and is detached from the buffering of the crushing chamber (120) State.

2. crusher according to claim 1, it is characterised in that：It is described to determine jaw (112) and be provided with accommodating cavity (121), One precrushing hole (122) and the second precrushing hole (123), the first precrushing hole (122) and the second precrushing hole (123) it is coaxially disposed and is connected with the accommodating cavity (121), the second precrushing hole (123) and the crushing chamber (120) Connection；The adjusting part (211) includes the first slide bar (215), the second slide bar (216), U-shaped part (217), resetting spring (218) and reciprocating member (219), first slide bar (215) is slidably arranged in the first precrushing hole (122), described Second slide bar (216) is slidably arranged in the second precrushing hole (123), first slide bar (215) and described second It is connected between slide bar (216) by the U-shaped part (217) and first slide bar (215) and second slide bar (216) is located at The both sides of the U-shaped part (217), the U-shaped part (217) is for U-shaped and in the accommodating cavity (121), the U-shaped part (217) opening direction is vertical with the axis of first slide bar (215), and the precrushing head (210) is fixed on described second One end far from the U-shaped part (217) of slide bar (216), the precrushing head (210) are coniform, the precrushing head (210) diameter of section is gradually reduced from one end close to second slide bar (216) to the other end；The resetting spring (218) it is sheathed on first slide bar (215) and is respectively held against the inner surface of the accommodating cavity (121) and the U-shaped part (217), the resetting spring (218) is so that the precrushing head (210) has to become towards what the crushing chamber (120) moved Gesture；The reciprocating member (219) is set in the accommodating cavity (121), and the reciprocating member (219) is parallel and coaxially set including two pieces The plectane (225) put, the plectane (225) are rotatably supported in the rack (110) by connecting shaft (226), two pieces Power rail (227) is connected between the plectane (225), the axis of plectane (225) described in the axis runout of the power rail (227) Line；The U-shaped part (217) is between two pieces of plectanes (225), and the reciprocating member (219) is in the drive of power source (114) It is lower rotation and drive the power rail (227) around it is described connection shaft (226) rotate, the opening of the U-shaped part (217) with it is described The distance between pivot center of reciprocating member (219) is the first distance, the power rail (227) and the reciprocating member (219) The shortest distance between pivot center is second distance, and first distance is less than the second distance, so that described reciprocal In part (219) rotation process, the power rail (227), which has, to be entered in the U-shaped part (217) and drives the U-shaped part (217) It is directed away from the first state of the crushing chamber (120) direction movement and is detached from the U-shaped part (217) and the U-shaped part (217) under the action of the resetting spring (218) return the second state.

3. crusher according to claim 2, it is characterised in that：Two opposite outer surfaces of the U-shaped part (217) are all provided with Connecting sleeve is equipped with, the first internal thread, the close U-shaped part of first slide bar (215) are provided in the connecting sleeve (217) one end and one end of the close U-shaped part (217) of second slide bar (216) is both provided with connecting portion (222), the connecting portion (222) is provided with the first external screw thread with first screw-internal thread fit, connecting portion (222) spiral shell Line is engaged in the connecting sleeve.

4. crusher according to claim 2, it is characterised in that：The power rail (227) be round bar, the U-shaped part (217) spacing between two opposite inner surfaces be more than the power rail (227) diameter, two of the U-shaped part (217) Free end has guiding slope surface (223), and the section of the guiding slope surface (223) is arc-shaped.

5. crusher according to claim 2, it is characterised in that：The precrushing mechanism (20) further includes electrodeless variable-speed group Part (212), the electrodeless variable-speed component (212) includes the first sprocket wheel (231), driving member (232) and tensioner (233), described First sprocket wheel (231) is coaxially disposed and can rotate synchronously with the belt wheel (115), and the driving member (232) is including middle part (235) and multiple hydraulic telescopic rods (236), the middle part (235) are coaxial fixed with connecting shaft (226) one of them described And can rotate synchronously, hydraulic telescopic rod (236) the radially extending along the middle part (235), the multiple hydraulic pressure is stretched Contracting bar (236) is uniformly distributed along the circumferential direction of the middle part (235), the separate middle part of the hydraulic telescopic rod (236) (235) one end is provided with the second sprocket wheel (237), and first sprocket wheel (231) and second sprocket wheel (237) are passed by chain It is dynamic；The tensioner (233) includes sliding block (239), third sprocket wheel (240) and tensioning spring (241), on the rack (110) Sliding slot (125) is provided with, the sliding block (239) is slidably arranged in the sliding slot (125), the third sprocket wheel (240) Rotatably it is set to the sliding block (239), the third sprocket wheel (240) and the chain interoperation, the tensioning spring (241) Be set in the sliding slot (125), the both ends of the tensioning spring (241) be respectively held against the sliding slot (125) inner surface and The sliding block (239), the tensioning spring (241) make the third sprocket wheel (240) be pressed in the chain and make the chain Tensioning.

6. crusher according to claim 5, it is characterised in that：The middle part (235) is including casing (243) and at least One anti-resistor (244), described sleeve pipe (243) are sheathed on one of them described connection shaft (226) and can relatively rotate, institute Anti- resistor (244) is stated including deterring pipe (245), brake pad (246) and deterring spring (247), described sleeve pipe is provided on (243) Tapped through hole, the second internal thread is provided in the tapped through hole, and the pipe (245) that deters is described to deter pipe (245) for tubulose One end for blind end, the other end for deterring pipe (245) is openend, and the outer surface for deterring pipe (245) is provided with With the second external screw thread of second screw-internal thread fit, it is described deter pipe (245) be inserted into tapped through hole in and deter pipe (245) and Tapped through hole screw thread engages, and openend is located in tapped through hole, and brake pad (246), which is slidably embedded at, to be deterred in pipe (245), It is described deter spring (247) be set to it is described deter in pipe (245), the both ends for deterring spring (247) are connected to envelope respectively Closed end and brake pad (246) deter spring (247) and brake pad (246) are pressed in connection shaft (226), and casing (243) passes through Brake pad (246) drives plectane (225) to rotate with the frictional force connecting between shaft (226), the rotation resistance of connection shaft (226) When power is more than default resistance threshold value, middle part (235) rotates and the connection shaft (226) is motionless.

7. crusher according to claim 2, it is characterised in that：The connection shaft (226) of multiple plectanes (225) is logical Belt is crossed to be synchronized with the movement.

8. crusher according to claim 2, it is characterised in that：The outer sheath of the power rail (227) is equipped with roller (228), at least three bearings are provided between the inner surface of the roller (228) and the outer surface of the power rail (227).

9. crusher according to claim 1, it is characterised in that：The body (10) further includes stretching assembly (116), institute It states stretching assembly (116) and includes stretch rod (127) and extension spring (128), stretching through-hole is provided on the rack (110), The spherical shape of inner surface recess for stretching through-hole, described stretch in through-hole are provided with movable part (129), the movable part (129) it is the penetrating tubulose in both ends, the outer surface of the movable part (129) is the surface of revolution being defined by a radius, the activity Multiple balls (130) are provided between the outer surface of part (129) and the inner surface for stretching through-hole；The stretch rod (127) It is slidably arranged in the movable part (129), one end of the stretch rod (127) is articulated with the remote of the dynamic jaw (113) One end from the eccentric shaft (111), the extension spring (128) are sheathed on the stretch rod (127), the extension spring (128) both ends are connected to the rack (110) and the stretch rod (127) respectively, and the extension spring (128) makes described dynamic One end far from the eccentric shaft (111) of jaw (113), which has, is directed away from the trend for determining the movement of jaw (112) direction.

10. crusher according to claim 1, it is characterised in that：The body (10) further includes diagonal brace component (117), The diagonal brace component (117) has slide (132) and tilt prop (133), and slideway (131), institute are provided on the rack (110) Slide (132) is stated slidably to be embedded in the slideway (131), be provided in the slideway (131) locking bolt (134) and Spring (135) is slid, is provided with multiple lock holes (136) in the slideway (131), the multiple lock hole (136) is along described The glide direction distribution of slide (132), the lock hole (136) are provided with third internal thread, locking bolt (134) setting There is the third external screw thread with the third screw-internal thread fit, locking bolt (134) selectivity is threaded engagement in wherein one In a lock hole (136), to change one of dead-centre position of the slide (132), the sliding spring (135) point It is not connected to the inner surface of the slideway (131) and the slide (132), the spring (135) that slides is by the slide (132) The locking bolt (134) is pressed in, one end of the tilt prop (133) is articulated with the dynamic jaw (113), the tilt prop (133) the other end is articulated with slide (132), the tilt prop (133) close to the side of the eccentric shaft (111) with it is described Angle between slideway (131) is more than 90 °；The tilt prop (133) is more than default pressure to the pressure that the slide (132) applies During force threshold, the slide (132) can be slided along the slideway (131), and sensor is additionally provided in the slideway (131), The sensor is used to detect the position of the slide (132), and the sensor detects the slide (132) in the slideway (131) power source (114) is controlled to be stopped when being slided in.