CN213267465U

CN213267465U - Broken rotor of broken cement concrete road surface in situ crushing regenerator

Info

Publication number: CN213267465U
Application number: CN202021406395.2U
Authority: CN
Inventors: 王功浩; 王鼎; 牛小可; 陈晨; 许超杰; 吴会杰; 程庆科
Original assignee: Pingdingshan Highway Transportation Institute Of Survey And Design
Current assignee: Henan Zhongping Jiaoke Research and Design Institute Co.,Ltd.
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-05-25
Anticipated expiration: 2030-07-16

Abstract

The utility model relates to a broken rotor that decreases cement concrete road surface original place broken regenerating machine, including the cylinder, its both ends cover is equipped with annular knife rest, annular knife rest splices into by a plurality of arcs, every arc both ends and middle part are passed through fixing bolt and are connected on the cylinder, the interval is equipped with a plurality of limit cutter unit between two adjacent fixing bolt on the same arc, it has a plurality of main cutter unit to distribute on the cylinder outer wall, main cutter unit and limit cutter unit constitute by blade holder, knife case and tool bit, the blade holder is fixed to be located on corresponding cylinder outer wall and the arc, the blade holder is kept away from cylinder one end and is seted up female connection hole, the tip of knife case blind end is equipped with the screw rod, screw rod and female connection hole threaded connection, the blade holder is kept away from the one end of blade. The utility model discloses can realize the whole quick replacement of limit knife tackle spare and the change alone of tool bit, broach shell, can improve the life of work efficiency and whole rotor greatly.

Description

Broken rotor of broken cement concrete road surface in situ crushing regenerator

Technical Field

The utility model belongs to the technical field of the road surface regeneration, concretely relates to broken rotor that decreases cement concrete road surface original place broken regenerating machine.

Background

The cement road surface in-situ crushing regenerator is an environment-friendly and efficient road construction equipment designed and manufactured for adapting to urban and rural road construction, and during operation, a new road base course can be formed by adding a stabilizer (cement, lime, water and the like) while milling and crushing an old cement road surface, and performing in-situ mixing, shaping and compacting. The milling rotor is a working device of the existing pavement in-situ cold regeneration equipment, bears important work such as milling and planing, crushing, mixing new and old materials and the like on the pavement, and mainly comprises a roller, a cutter holder, a cutter head and the like. Traditional mill blade holder of mixing the rotor welds on the cylinder, and the tool bit welds on the blade holder, when the tool bit wearing and tearing back needs to be changed, can only cut original tool bit earlier and weld new tool bit again, complex operation wastes time and energy, greatly increased workman's the operation degree of difficulty and intensity of labour, be unfavorable for the road surface and go on with regeneration work's high efficiency on the spot. In addition, in actual work, the cutting working conditions of the edge cutter areas on the two ends of the milling and mixing rotor are much worse than that of the main cutter area of the middle part, namely, the edge cutters are more easily worn, the time required by wear and scrapping is shorter, the replacement is more frequent, and because the edge cutters are circumferentially distributed at intervals, if the single edge cutter is still subjected to cutting and welding replacement in sequence, the efficiency is lower, the regeneration operation is not facilitated, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a crushing rotor of a damaged cement concrete pavement in-situ crushing regenerator, which is convenient for replacing a cutter head alone and replacing a cutter assembly integrally, so as to solve the above problems.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a broken old damage cement concrete road surface original place crushing regenerating machine's broken rotor, includes the cylinder, the equal fixed cover in cylinder both ends is equipped with annular knife rest, annular knife rest is formed by the concatenation of a plurality of arcs head and the tail in proper order, and the both ends and the middle part of every arc all are on the cylinder that corresponds through the fixing bolt fixed connection of radial setting, and adjacent two fixing bolt are all at the interval on same arc and are equipped with a plurality of limit cutter subassemblies, it has a plurality of main cutter subassemblies to be the double helix linear distribution of opposite direction by both ends to the centre along its rotation axis direction on the cylinder outer wall, main cutter subassembly and limit cutter subassembly are by blade holder, broach shell and tool bit constitution, the blade holder is all fixed on corresponding cylinder outer wall and arc, the one end that the blade holder kept away from the cylinder is seted up female connection hole, the broach shell is the T shape structure that one end was sealed and this end, the tip of knife pouch blind end is equipped with the screw rod, the screw rod can be dismantled with female connection hole screw thread and be connected, connecting flange passes through a plurality of connecting bolt and blade holder fixed connection, the one end that the blade holder was kept away from to the knife pouch can be dismantled and be connected with the tool bit.

Preferably, the annular knife rest is formed by splicing four groups of arc-shaped plates end to end in sequence.

Preferably, the transverse spacing between two adjacent main knife assemblies is 312-318 mm, and the longitudinal spacing is 175-185 mm.

Preferably, the angle between the axis of the cutter head and the tangent of the respective seat at the location of the respective cylinder or arc is 41 °.

Preferably, one end of the tool apron, which is far away from the tool sleeve, is an arc surface which is adapted to the corresponding roller or arc plate and is welded on the corresponding roller or arc plate, and one end of the tool apron, which is close to the tool sleeve, is an inclined surface.

Preferably, the one end that the blade holder was kept away from to the broach shell is equipped with the installation blind hole along its length direction, be equipped with first ring groove on the installation blind hole inner wall, radially be equipped with a plurality of and the installation blind hole link up move back the sword hole on the broach shell lateral wall that first ring groove corresponds.

Preferably, the tool bit includes blade and handle of a knife, the handle of a knife adaptation is in the installation blind hole and links to each other with the installation blind hole grafting, be equipped with second annular clamping groove on the handle of a knife outer wall, second annular clamping groove is corresponding and the jump ring that the joint has the adaptation between the two with first annular clamping groove, the one end that the blade holder was kept away from to the handle of a knife stretches out the cutter sheath and has set firmly the boss, set firmly on the boss the blade.

Preferably, the knife body comprises a frustum fixedly arranged on the boss, a plurality of ceramic rods are inserted in the circumferential direction of the upper portion of the frustum in a splicing mode, an octagonal base with an outward-extending arc shape is fixedly arranged at the top of the frustum, a knife tip made of hard alloy is fixedly arranged at the top of the octagonal base, the knife tip is composed of a cylinder at the lower portion and a cone at the upper portion, and a heat absorbing layer and a wear-resistant heat conducting layer are sequentially arranged on the outer surface of the knife tip from inside to outside.

The utility model has the advantages that: the utility model relates to a rationally, moreover, the steam generator is simple in structure, the setting of the annular knife rest of constituteing by the arc, the whole change of the limit cutter unit of being more convenient for, when limit sword wearing and tearing became invalid, only need take off fixing bolt on the corresponding arc, alright take off the arc and the limit cutter unit on it is whole, then change fast the arc that has new limit cutter unit can, later carry out the change of tool bit, knife sheath etc. to the arc of taking off again, it is more simple and convenient to operate, time saving and labor saving can improve work efficiency greatly, guarantee that the high efficiency of regeneration operation goes on the spot.

The detachable connection of the cutter sleeve and the cutter holder and the detachable connection of the cutter head and the cutter sleeve can respectively realize the independent replacement of the cutter head and the cutter sleeve, avoid the problems of complex operation and the like when the cutter head is replaced by the original welding mode, save time and labor, greatly reduce the operation difficulty and labor intensity of workers, and be favorable for the efficient on-site regeneration operation of a road surface.

Drawings

Fig. 1 is a left side view structure diagram of the present invention;

fig. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view of the connection structure of the knife sheath and the knife holder of the present invention;

FIG. 4 is a schematic view of the connection structure of the tool bit and the tool sheath according to the present invention;

fig. 5 is a schematic structural view of the tool bit, the clamp spring and the tool sleeve of the present invention.

Reference numbers in the figures: 1 is the cylinder, 2 is annular knife rest, 3 is the arc, 4 is fixing bolt, 5 is limit cutter unit spare, 6 is main cutter unit spare, 7 is the tool bit, 8 is the broach shell, 9 is the blade holder, 10 is the flange, 11 is connecting bolt, 12 is the screw rod, 13 is the female connection hole, 14 is for moving back the tool bore, 15 is the installation blind hole, 16 is the jump ring, 17 is the handle of a knife, 18 is the boss, 19 is the blade, 20 is first ring groove, 21 is second ring groove, 22 is the frustum, 23 is the ceramic rod, 24 is octagonal base, 25 is the knife tip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 to 5, a crushing rotor of an in-situ crushing and regenerating machine for a damaged cement concrete pavement comprises a roller 1. The two ends of the roller 1 are fixedly sleeved with annular tool rests 2 for mounting edge tool assemblies 5. Annular knife rest 2 is formed by a plurality of arcs 3 end to end concatenation in proper order, specifically can establish to four groups, and the both ends and the middle part of every arc 3 all are equipped with a plurality of limit cutter unit 5 through the equal interval between two adjacent fixing bolt 4 on same arc 3 on the cylinder 1 that corresponds through radial fixing bolt 4 fixed connection that sets up. By the setting of the annular knife rest 2 that the arc 3 is constituteed, the whole change of the limit cutter unit 5 of being more convenient for, when limit sword wearing and tearing became invalid, only need take off fixing bolt 4 on the corresponding arc 3, alright take off arc 3 and the whole of the limit cutter unit 5 on it, then change fast have new limit cutter unit 5 the arc 3 can, later carry out tool bit 7 to the arc 3 of taking off again, the change of broach shell 8 etc., the operation is simple more convenient, time saving and labor saving, can improve work efficiency greatly, guarantee that the high efficiency of regeneration operation goes on in the spot.

A plurality of main cutter assemblies 6 are distributed on the outer wall of the roller 1 along the direction of the rotation axis of the roller from two ends to the middle in a double-helix linear mode, the direction of the main cutter assemblies is opposite, and accordingly the milled waste materials are concentrated towards the middle and are convenient to convey. The main cutter assembly 6 and the side cutter assembly 5 are composed of a cutter holder 9, a cutter sleeve 8 and a cutter head 7, and the cutter holder 9 is fixedly arranged on the outer wall of the corresponding roller 1 and the arc-shaped plate 3. One end of the tool apron 9, which is far away from the roller 1, is provided with an internal thread connecting hole 13 for connecting with the tool sleeve 8. The knife pouch 8 is a T-shaped structure with one closed end and a connecting flange 10 arranged at the end, a screw 12 is arranged at the end part of the closed end of the knife pouch 8, and the screw 12 is in threaded detachable connection with the internal thread connecting hole 13. The connecting flange 10 is fixedly connected with the tool apron 9 through a plurality of connecting bolts 11, and one end of the tool sleeve 8, which is far away from the tool apron 9, is detachably connected with the tool bit 7. The knife pouch 8 can be dismantled with blade holder 9 and be connected and knife head 7 is connected with dismantling of knife pouch 8, can realize the change alone of knife head 7 and knife pouch 8 respectively, avoids the loaded down with trivial details scheduling problem of manipulation of original welding mode when changing knife head 7, and labour saving and time saving, greatly reduced workman's the operation degree of difficulty and intensity of labour, be favorable to the road surface to go on with the high efficiency of regeneration operation on the spot.

In the embodiment, the transverse distance between two adjacent main cutter assemblies 6 is 312-318 mm, so that the collection space of the milled pavement materials is larger, and the milling resistance is reduced. The longitudinal distance between two adjacent main cutter assemblies 6 is 175-185 mm, so that gaps between the main cutter assemblies 6 can be prevented from being omitted during working, stress between the main cutter assemblies 6 is dispersed, impact force on the main cutter assemblies 6 is reduced, and abrasion to the cutter head 7 is reduced. The included angle between the axis of the cutter head 7 and the tangent line of the corresponding cutter holder 9 at the position of the corresponding roller 1 or the arc-shaped plate 3 is 41 degrees, so that a reasonable milling angle is formed, the tangential acting force applied to the cutter head 7 can be reduced, and the risk of breaking the cutter handle 17 of the cutter head 7 is reduced while the milling quality is ensured.

In this embodiment, the one end of blade holder 9, far away from knife pouch 8, is the circular arc face and this end welding of adaptation in corresponding cylinder 1 or arc 3 and locates on corresponding cylinder 1 or arc 3 to guarantee that blade holder 9 is connected firmly with corresponding cylinder 1 or arc 3, reinforcing overall structure intensity. The one end that blade holder 9 is close to tool case 8 is the inclined plane, and this inclined plane mills plane angle looks adaptation with 41, makes tool case 8 can be perpendicular to this inclined plane and connect on blade holder 9, improves structural strength, guarantees to connect firmly.

In this embodiment, the end of the tool sleeve 8 remote from the tool seat 9 is provided with a blind mounting hole 15 along its length for connection with the tool bit 7. The inner wall of the mounting blind hole 15 is provided with a first annular clamping groove 20, and the side wall of the cutter sleeve 8 corresponding to the first annular clamping groove 20 is radially provided with a plurality of cutter withdrawing holes 14 communicated with the mounting blind hole 15 for matching with the dismounting and replacement of the cutter head 7. The tool bit 7 comprises a tool body 19 and a tool shank 17, the tool shank 17 is adapted to the installation blind hole 15 and is connected with the installation blind hole 15 in an inserting mode, a second annular clamping groove 21 is formed in the outer wall of the tool shank 17, the second annular clamping groove 21 corresponds to the first annular clamping groove 20, and a clamping spring 16 in adaptation is clamped between the second annular clamping groove 21 and the first annular clamping groove 20. By means of the insertion connection of the tool shank 17 and the installation blind hole 15 and the clamping connection of the clamp spring 16 between the first annular clamping groove 20 and the second annular clamping groove 21, on one hand, the tool shank 17 and the tool sleeve 8 can be firmly connected in the axial direction, the tool body 19 is prevented from falling off in the working process, and the smooth and stable operation of milling operation is guaranteed; on the other hand, the rotation of the cutter handle 17 in the mounting blind hole 15 is not influenced, so that the cutter body 19 can be ensured to be in rotating contact with a milling surface in the working process, the rotating performance of the cutter body is greatly improved, the cutter body 19 is ensured to be more uniformly worn, and the service life of the cutter body is prolonged. One end of the knife handle 17, which is far away from the knife holder 9, extends out of the knife sleeve 8 and is fixedly provided with a boss 18, the diameter of the boss 18 is matched with that of the knife sleeve 8, the insertion of the knife handle 17 is limited, the open end of the installation blind hole 15 is sealed, and stable and efficient work of the whole knife head 7 is guaranteed. The boss 18 is provided with a blade 19 for milling.

In this embodiment, blade 19 is including setting firmly frustum 22 on boss 18, frustum 22 adopts carbide to make, it has a plurality of ceramic rods 23 to peg graft in the upper portion circumference of frustum 22, can replace frustum 22 and stone grain friction, because ceramic rods 23's wearability is far greater than the frustum of alloy material, thereby can strengthen blade 19's wearability greatly, and then improve blade 19's life, and ceramic rods 23 equipartition is in the front portion of frustum 22, play certain supporting role to it, be favorable to blade 19 uniform wear in the course of the work, further improve blade 19's rotating performance, greatly reduced blade 19 the resistance that receives in the work, and then improve work efficiency and operating mass. The top of frustum 22 sets firmly is the curved eight angle base 24 of abduction, can further strengthen blade 19's intensity and fastness to further improve blade 19's rotation performance, made blade 19's wearing and tearing more even, greatly reduced blade 19's fracture disability rate. The top of the octagonal base 24 is fixedly provided with a knife tip 25 made of hard alloy, the knife tip 25 consists of a cylinder at the lower part and a cone at the upper part, and the outer surface of the knife tip 25 is sequentially provided with a heat absorbing layer and a wear-resistant heat conducting layer (not shown in the figure) from inside to outside, so that the heat of the knife body 19 can be absorbed and dissipated more conveniently, and the heat dissipation performance of the knife body 19 can be greatly improved. The heat absorbing layer adopts the existing black chromium heat absorbing coating, has excellent corrosion resistance, durability and heat absorption, has good thermal stability, is more convenient for absorbing the heat of the knife body 19, and improves the heat dispersion performance of the knife body 19. The wear-resistant heat conduction layer adopts the existing nano composite ceramic coating, has excellent wear resistance, corrosion resistance and high temperature resistance, high heat conductivity and cold and heat resistance, can quickly dissipate heat sucked out by the heat absorption layer, improves the performances of the knife body 19 such as wear resistance, corrosion resistance and the like, and is favorable for the efficient and stable operation of on-site regeneration.

The utility model discloses a theory of operation: the utility model discloses when using, the complete machine walks and drives cylinder 1 through corresponding power equipment and rotates to drive main cutter unit 6 and limit cutter unit 5 above that and mill the plane operation. When the tool bit 7 and the tool case 8 of the side knife assembly 5 need to be replaced, only the fixing bolt 4 on the corresponding arc plate 3 needs to be taken down, the arc plate 3 and the whole side knife assembly 5 on the arc plate can be taken down, then the arc plate 3 with the new side knife assembly 5 is quickly replaced, and then the tool bit 7 and the tool case 8 are replaced on the arc plate 3 which is taken down. When the knife sheath 8 of the side knife assembly 5 and the main knife assembly 6 is replaced, the knife sheath 8 can be taken down only by firstly taking down the connecting bolt 11 on the connecting flange 10 and then screwing the screw 12 out of the corresponding internal thread connecting hole 13, and then the replacement is convenient and fast. When the tool bit 7 of the side cutter component 5 and the main cutter component 6 is replaced, only a corresponding tool is required to extend into the cutter withdrawing hole 14 and apply force to the center direction of the installation blind hole 15, so that the clamp spring 16 is contracted on the second annular clamping groove 21, the tool shank 17 can be easily pulled out of the installation blind hole 15, the original tool bit 7 can be disassembled, when a new tool bit 7 is installed, only the clamp spring 16 is firstly installed on the second annular clamping groove 21, the clamp spring 16 is clamped by the existing tools such as a locking pliers, a pipe wrench and the like, so that the outer wall of the clamp spring is completely contracted on the second annular clamping groove 21, then the tool shank 17 can be smoothly inserted into the installation blind hole 15, after the clamp spring is installed in place, the boss 18 abuts against the end part of the tool sleeve 8 at the opening end of the installation blind hole 15, the second annular clamping groove 21 corresponds to the first annular clamping groove 20, and at the clamp spring, the mounting and clamping of the knife handle 17 can be completed, the mounting and fixing of the knife head 7 are realized, the operation is more convenient and faster, time and labor are saved, and the improvement of the working efficiency is facilitated.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The crushing rotor of the in-situ crushing regenerator for the worn-out cement concrete pavement comprises a roller and is characterized in that annular knife rests are fixedly sleeved at two ends of the roller, the annular knife rests are formed by sequentially splicing a plurality of arc plates end to end, two ends and the middle of each arc plate are fixedly connected onto the corresponding roller through radially arranged fixing bolts, a plurality of edge knife assemblies are arranged between every two adjacent fixing bolts on the same arc plate at intervals, a plurality of main knife assemblies are distributed on the outer wall of the roller along the rotating axis direction of the roller from two ends to the middle in a double-helix linear manner in opposite directions, each main knife assembly and each edge knife assembly are composed of a knife holder, a knife sleeve and a knife head, the knife holders are fixedly arranged on the corresponding outer wall of the roller and the corresponding arc plates, one end of each knife holder, which is far away from the roller, is provided with an internal thread connecting hole, the knife sleeve is of a T-shaped structure with one, the tip of knife pouch blind end is equipped with the screw rod, the screw rod can be dismantled with female connection hole screw thread and be connected, connecting flange passes through a plurality of connecting bolt and blade holder fixed connection, the one end that the blade holder was kept away from to the knife pouch can be dismantled and be connected with the tool bit.

2. The crushing rotor of the in-situ crushing and regenerating machine for worn and damaged cement concrete pavements as claimed in claim 1, wherein the annular cutter frame is formed by splicing four groups of arc-shaped plates end to end in sequence.

3. The crushing rotor of the in-situ crushing and regenerating machine for the worn-out cement concrete pavement according to claim 1, wherein the transverse spacing between two adjacent main cutter assemblies is 312-318 mm, and the longitudinal spacing is 175-185 mm.

4. A crushing rotor of a worn-out cement concrete pavement in-situ crushing and regenerating machine as claimed in claim 1, characterized in that the angle between the axis of the cutter head and the tangent of the corresponding cutter holder at the position of the corresponding roller or arc-shaped plate is 41 °.

5. The crushing rotor of the in-situ crushing and regenerating machine for worn and damaged cement concrete pavements as claimed in claim 1, wherein one end of the cutter holder, which is far away from the cutter sleeve, is an arc surface adapted to the corresponding roller or arc plate and is welded on the corresponding roller or arc plate, and one end of the cutter holder, which is close to the cutter sleeve, is an inclined surface.

6. The crushing rotor of a worn-out cement concrete pavement in-situ crushing and regenerating machine as claimed in claim 1, wherein a blind installation hole is formed in one end, away from the cutter holder, of the cutter sleeve along the length direction of the cutter sleeve, a first annular clamping groove is formed in the inner wall of the blind installation hole, and a plurality of cutter withdrawing holes communicated with the blind installation hole are radially formed in the side wall of the cutter sleeve corresponding to the first annular clamping groove.

7. The crushing rotor of the in-situ crushing and regenerating machine for the worn cement concrete pavements as claimed in claim 6, wherein the tool bit comprises a tool body and a tool shank, the tool shank is adapted to and connected with the blind installation hole in an inserting manner, a second annular clamping groove is formed in the outer wall of the tool shank, the second annular clamping groove corresponds to the first annular clamping groove, a clamping spring in adaptation is clamped between the second annular clamping groove and the first annular clamping groove, one end, far away from the tool apron, of the tool shank extends out of the tool sleeve and is fixedly provided with a boss, and the tool body is fixedly arranged on the boss.

8. The crushing rotor of the in-situ crushing and regenerating machine for damaged cement concrete pavements as claimed in claim 7, wherein the cutter body comprises a frustum fixedly arranged on the boss, a plurality of ceramic rods are inserted into the periphery of the upper part of the frustum in an inserting manner, an octagonal base in an outward-extending arc shape is fixedly arranged at the top of the frustum, a cutter point made of hard alloy is fixedly arranged at the top of the octagonal base, the cutter point consists of a cylinder at the lower part and a cone at the upper part, and a heat absorbing layer and a wear-resistant heat conducting layer are sequentially arranged on the outer surface of the cutter point from inside to outside.