CN111389568B - Movable jaw crusher and mounting method thereof - Google Patents

Abstract

The invention discloses a movable jaw crusher, which comprises a front frame, a rear frame, a track walking assembly, a power driving assembly, a jaw crusher main machine, a conveying device and a lower end supporting frame, wherein the lower end supporting frame is fixed on the track walking assembly through bolts, the bottom end of the rear frame is detachably arranged on the lower end supporting frame, the front frame is fixedly arranged on the track walking assembly through the lower end supporting frame, the jaw crusher main machine is fixedly arranged on the rear frame, the rear end of the rear frame is fixedly provided with a feeding hopper, the feeding hopper is positioned above the rear part of the jaw crusher main machine, a discharge hole of the feeding hopper is communicated with a feed inlet of the jaw crusher main machine, lifting hydraulic cylinders are fixedly arranged at the side parts of two ends of the rear frame, and one end of the conveying device is fixedly arranged below the discharge hole of the jaw crusher main machine. The invention can effectively avoid the damage rate of disassembly and assembly and transportation, saves the transportation cost, improves the safety of transportation and installation, and can be suitable for crushing and processing operation in severe environments.

Description

Movable jaw crusher and mounting method thereof

Technical Field

The invention belongs to the technical field of crushing mechanical equipment, and particularly relates to a movable jaw crusher and an installation method thereof.

Background

The crushing and screening equipment is mainly divided into a fixed crusher and a movable crusher, is mainly used for the operation processing of mobile stones such as highways, railways, hydroelectric engineering and the like, and can be configured in various modes according to the types of processing raw materials, the scale and the requirements of finished products. At present, whether a fixed crusher or a mobile crusher is used in the market, in the stone processing operation process, a plurality of adverse effects are brought to construction units in the aspects of engineering progress, construction cost, equipment management and the like, and the main reasons are that: the investment construction period is long, the input auxiliary equipment is large, the equipment occupies a large area, the lifting equipment with certain capacity is required to carry, the equipment is difficult to transfer, besides the lifting equipment is required, a plurality of large-scale transportation equipment is required to be stored, a certain field is also required, the daily maintenance cost is high, the equipment is inconvenient to transfer, the equipment is required to be reinstalled after transfer, the installation and debugging period is long, the equipment disassembly and assembly and transportation damage rate is high, the daily maintenance cost is also high, the crushing and screening equipment structure is fixed and is not easy to adjust, the capacity and the efficiency of crushing and screening are seriously affected, and the equipment is difficult to adapt to the processing operation under the severe environment.

Disclosure of Invention

The invention aims to provide a movable jaw crusher and an installation method thereof, and according to the movable jaw crusher, the disassembly and transportation damage rate can be effectively avoided, the transportation cost is saved, the transportation and installation safety is improved, and the movable jaw crusher can be suitable for crushing and processing operations in severe environments. In order to achieve the above purpose, the present invention adopts the following technical scheme:

according to one aspect of the present invention, there is provided a mobile jaw crusher comprising a jaw crusher system and a traveling system, the traveling system being composed of a front frame, a power drive assembly, a crawler travel assembly, a conveyor and a lower end support frame, the jaw crusher system being composed of a rear frame, a jaw crusher main body, an upper hopper and a lifting hydraulic cylinder, the lower end support frame being fixed to the crawler travel assembly by bolts, the bottom end of the rear frame being detachably mounted to the lower end support frame by bolts, thereby mounting the bottom end of the rear frame to the crawler travel assembly by the lower end support frame, the power drive assembly being mounted to the front frame, the front frame being fixedly mounted to the crawler travel assembly by the lower end support frame, the front frame and the rear frame are distributed on the same horizontal surface plane of the lower end supporting frame, the jaw crusher is fixedly installed on the rear frame, the feeding hopper is fixedly installed on the rear end of the rear frame and located above the rear of the jaw crusher, a discharge hole of the feeding hopper is communicated with a feed inlet of the jaw crusher, lifting hydraulic cylinders are fixedly installed on side parts of two ends of the rear frame, one end of the conveying device is fixed below the discharge hole of the jaw crusher, the other end of the conveying device obliquely extends to the outer side of the front end of the front frame from the lower direction of the discharge hole of the jaw crusher, and the power driving assembly is in transmission connection with the crawler belt traveling assembly.

The above scheme is further preferable, the lower support frame is formed by welding and overlapping and fixing the edge of the upper support frame and the edge of the lower support frame, a conveying channel is formed between the upper support frame and the lower support frame, the feeding end of the conveying device penetrates from the front end of the conveying channel between the upper support frame and the lower support frame to the near rear end, the upper support frame comprises an upper horizontal support beam formed by two parallel H-shaped steel types and a plurality of upper horizontal support beams fixed between the two upper horizontal support beams, the lower support frame comprises a lower horizontal support beam formed by two parallel H-shaped steel types and a plurality of lower horizontal support beams fixed between the two lower horizontal support beams, the upper horizontal support beams and the lower horizontal support beams are mutually overlapped and welded, and the conveying channel for installing the conveying device is formed between the upper horizontal support beam and the lower horizontal support beams.

According to the scheme, the detachable limit beam is arranged at the front end between the two lower horizontal support beams, and the feeding end of the conveying device gradually penetrates into the conveying channel from the upper surface of the limit beam, so that the feeding end of the conveying device is stopped at a position 1-1.5 m away from the rear end of the lower horizontal support beam.

In the above scheme, it is further preferable that conveying installation seats are arranged on the opposite inner sides of the two lower horizontal support beams, and the conveying device is fixed on the lower horizontal support beams through the conveying installation seats.

In the above scheme, it is further preferable that the front and rear end side parts of the rear frame are respectively provided with a supporting fixing head, and the lifting hydraulic cylinder is respectively fixed on the front and rear end side parts of the rear frame through the supporting fixing heads.

The above scheme is further preferable, the support fixing head comprises a supporting seat, a supporting shell and an annular ring seat, a first U-shaped groove is formed in the surface of the supporting seat, an L-shaped step is formed in the top of the back of the supporting shell, a second U-shaped groove is formed in the back of the supporting shell below the L-shaped step, the fixing part of the lifting hydraulic cylinder is provided with the annular ring seat, the fixing part of the lifting hydraulic cylinder penetrates through the annular ring seat to be welded and fixed, the outer side of the annular ring seat, relative to the left-right direction of the movable jaw crusher, is fixed in the second U-shaped groove, the inner side of the annular ring seat, relative to the left-right direction of the movable jaw crusher, is fixed in the first U-shaped groove, the supporting shell is inserted into the first U-shaped groove in a sliding mode from bottom to top, the bottom of the L-shaped step is in contact with the top of the first U-shaped groove, the top of the L-shaped step is flush with the supporting seat and the top surface, and the fixing part of the lifting hydraulic cylinder is fixed at the front side and the rear side of the rear frame through the supporting seat, the supporting shell and the annular ring seat.

In the above solution, it is further preferable that rails are respectively provided at both side edges of the upper surface of the front frame 1 and both side edges of the upper surface of the rear frame.

The above scheme is further preferable that the two side walls of the front frame are provided with first crawling ladders, the rear sides of the first crawling ladders are provided with supporting connecting frames, the upper ends of the first crawling ladders are rotationally connected to the two side walls of the front frame, and the rear sides of the lower ends of the first crawling ladders are connected to the crawler traveling assembly through the supporting connecting frames.

The above scheme is further preferable that the two side walls of the rear frame are provided with second crawling ladders, the rear sides of the second crawling ladders are at least provided with a connecting plate, the upper ends of the second crawling ladders are rotationally connected to the two side parts of the rear frame, and the rear sides of the lower ends of the second crawling ladders are connected to the crawler belt traveling assembly through the connecting plate.

According to another aspect of the present invention, there is provided a method of installing a mobile jaw crusher, comprising the steps of:

step 1: firstly, the crawler traveling assembly, the lower end supporting frame, the front frame and the power driving assembly are assembled and formed into a traveling system, the rear frame, the jaw breaking main machine, the feeding hopper and the lifting hydraulic cylinder are assembled and formed into a jaw breaking system, and then the traveling system and the jaw breaking system are transported to a construction operation site, and the lifting height of the lifting hydraulic cylinder is adjusted to control the crushing traveling system to travel to the lower side of the rear frame, so that the lower end supporting frame is positioned right below the rear frame and can be mutually matched and installed;

Step 2: the lifting hydraulic cylinder is regulated to slowly descend, the rear frame is firmly matched with the lower end supporting frame and then is connected and fixed through bolts, the conveying device is inserted into a conveying channel formed in the lower end supporting frame from the front frame, then the conveying device is fixed in the lower end supporting frame, and crushing operation can be carried out after debugging is finished;

step 3: after the crushing operation is completed, the bolts connected between the rear frame and the lower end supporting frame are disassembled, the lifting hydraulic cylinder is adjusted to slowly lift the rear frame, the jaw breaking system is separated from the traveling system, and the traveling system is controlled to move and be far away from the jaw breaking system.

In summary, the invention adopts the technical scheme, and has the following technical effects:

(1) The main structure of the whole machine is that the section bar is processed, and the whole machine is convenient to manufacture, process, install, disassemble, transport and maintain. The rear end can be lifted and separated from the front end by utilizing the whole oil cylinder, so that the transportation and the field installation are convenient, the lifting is not needed, the front frame is detachably matched with the crawler type moving and jaw breaking station for installation and transportation, and the front frame is transported and walked through the crawler assembly, so that the front frame can be suitable for installation and crushing operation on severe road conditions and working sites, the transition is convenient, the transportation cost is greatly reduced during the transportation, and a large amount of installation and debugging cost is saved when the front frame enters the crushing operation region.

(2) The crusher avoids the damage rate of disassembly and transportation, saves the transportation cost and improves the safety of transportation and installation. After transition, reinstallation is needed, so that the installation and debugging period is reduced, the productivity and efficiency of the crusher can be improved, and the crushing and processing operation under severe environments can be adapted.

Drawings

FIG. 1 is a schematic general construction of a mobile jaw crusher according to the present invention;

FIG. 2 is a schematic general structure of the present invention after separation of a mobile jaw crusher;

FIG. 3 is a schematic view of the mounting structure of the front frame, rear frame and lower support frame of the present invention;

FIG. 4 is a schematic view of the structure of the lower end support frame of the present invention;

FIG. 5 is a schematic view of the mounting structure of the lift cylinder of the present invention;

FIG. 6 is a schematic view of the structure of the support fixture of the present invention;

FIG. 7 is a schematic view of the structure of the support housing of the present invention;

FIG. 8 is a schematic general construction of the transfer device of the present invention;

FIG. 9 is a cross-sectional view of the transfer device of the present invention;

FIG. 10 is a schematic view of the structure of the conveyor support frame of the present invention;

FIG. 11 is an axial view of the conveyor support frame of the present invention;

fig. 12 is a schematic view of the aligning idler assembly of the present invention;

Fig. 13 is an axial view of a self-aligning idler assembly of the present invention

Fig. 14 is a schematic view of the structure of the upper rotating idler assembly of the present invention;

fig. 15 is a schematic view of the structure of the upper rotating idler assembly of the present invention;

FIG. 16 is a schematic view of the structure of the first and second support webs of the present invention;

FIG. 17 is a schematic view of the mounting structure of the L-shaped edge support plate of the present invention;

in the drawing, a front frame 1, a rear frame 2, a crawler traveling assembly 3, a power driving assembly 4, a jaw crusher 5, a conveying device 6, a lifting hydraulic cylinder 8, a feeding hopper 7, a lower end supporting frame 9, a first ladder stand 10, a supporting connecting frame 11, a second ladder stand 20, a connecting plate 21, a conveying channel 60, a conveying support frame 61, a transmission belt 62, a gear motor 63, a driving roller 64, a driven roller 65, a tensioning adjusting device 66, a connecting seat 67 and a material protection plate 68;

gantry brace 601, upper rotating idler assembly 602, lower rotating idler 603, scraper 604, aligning idler assembly 605, lower joist 605a, upper adjusting joist 605b, aligning idler 605c, offset adjusting roller 605d, fixed support 605e, first rotary shaft 605f, idler bracket g, L-shaped support shaft 605h, tension spring 605i, L-shaped blocking block 605j; a carrier roller mounting support plate 6021, a carrier roller connecting plate assembly 6022, an l-shaped edge support plate 6023, a left carrier roller 6024, a middle carrier roller 6025, a right carrier roller 6026, a fixed support plate 60210, a second rotary shaft 60211, a limiting piece 60212, a carrier roller mounting bottom plate 60220, a first support connecting plate 60221, a second support connecting plate 60222, a fixed connecting part 60223, a clamping interface 60224, a screw hole 60225, a screw 60226, a support pallet 60227, and a guide roller 60231;

An upper horizontal support beam 90, an upper horizontal support beam 90a, a lower horizontal support beam 91a, a limit beam 91b, a conveying installation seat 91c, a support fixing head 200, a support seat 201, a support housing 202, an annular ring seat 203, a first U-shaped groove 201a, a second U-shaped groove 202a, and an L-shaped step 204.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below by referring to the accompanying drawings and by illustrating preferred embodiments. It should be noted, however, that many of the details set forth in the description are merely provided to provide a thorough understanding of one or more aspects of the invention, and that these aspects of the invention may be practiced without these specific details.

As shown in fig. 1, 2 and 3, the movable jaw crusher provided by the invention comprises a front frame 1, a rear frame 2, a track walking assembly 3, a power driving assembly 4, a jaw crusher main machine 5, a conveying device 6 and a lower end supporting frame 9, wherein the jaw crusher comprises a jaw crushing system and a walking system, the walking system consists of the front frame 1, the power driving assembly 4, the track walking assembly 3, the conveying device 6 and the lower end supporting frame 9, the jaw crushing system consists of the rear frame 2, the jaw crusher main machine 5, an upper hopper 7 and a lifting hydraulic cylinder 8, the lower end supporting frame 9 is fixed on the track walking assembly 3 through bolts, the bottom end of the rear frame 2 is detachably arranged on the lower end supporting frame 9, so that the bottom end of the rear frame 2 is arranged on the track walking assembly 3 through the lower end supporting frame 9, the power driving assembly 4 is arranged on the front frame 1, the front frame 1 is fixedly arranged on the lower end supporting frame 9, so that the front frame 1 is fixedly arranged on the crawler traveling assembly 3 through the lower end supporting frame 9, the front frame 1 and the rear frame 2 are distributed on the same horizontal surface plane of the lower end supporting frame 9, the jaw crusher 5 is fixedly arranged on the rear frame 2, the rear end of the rear frame 2 is fixedly provided with the upper hopper 7, the upper hopper 7 is positioned at the rear upper part of the jaw crusher 5, the discharge port of the upper hopper 7 is communicated with the feed port of the jaw crusher 5, the bottom end of the upper hopper 7 is fixed on the rear frame 2 through a supporting spring, during the processing operation, stone is gradually dropped into the jaw crusher 5 to be crushed by inertial vibration of the jaw crusher 5 through the inertial vibration of the jaw crusher 5, the feeding is convenient, so that stones are continuously conveyed into a jaw crusher for crushing; the lifting hydraulic cylinders 8 are fixedly arranged at the side parts of two ends of the rear frame 2, the lifting hydraulic cylinders 8 downwards extend out of the side parts of two ends of the rear frame 2 and are positioned at two sides of the lower end supporting frame 9, the lifting hydraulic cylinders 8 are in contact with the ground when lifted so as to support the whole jaw breaking system, one end of the conveying device 6 is fixed below a discharge hole of the jaw breaking main machine 5, the other end of the conveying device 6 obliquely extends to the outer side of the front end of the front frame 1 from below the discharge hole of the jaw breaking main machine 5, and the power driving assembly 4 is in transmission connection with the crawler belt traveling assembly 3. After the stones are sent into the feeding hopper 7, the stones fall into the jaw crusher 5 from the feeding hopper 7 to be crushed, the stones crushed by the jaw crusher 5 fall onto the conveying device 6, and the conveying device 6 transfers the crushed stones to the front end of the front frame 1. In the invention, when crushing operation is carried out, the crawler traveling assembly 3, the lower end supporting frame 9, the front frame 1 and the power driving assembly 4 are assembled and formed into a crushing traveling system, the rear frame 2, the jaw crusher 5, the upper hopper 7 and the lifting hydraulic cylinder 8 are assembled and formed into a jaw crusher system, the crushing traveling system and the jaw crusher system are transported to a construction operation site, the lifting height of the lifting hydraulic cylinder 8 is regulated, the crushing traveling system is controlled to travel to the lower side of the rear frame 2, the lower end supporting frame 9 is positioned right below the rear frame 2 and can be mutually matched and installed, the lifting hydraulic cylinder 8 is regulated to slowly descend, the rear frame 2 is fixedly matched and placed on the lower end supporting frame 9, then the rear frame 2 is connected and fixed through bolts, the conveying device 6 is inserted into a conveying channel 60 formed in the lower end supporting frame 9 from the front frame 1, the conveying device 6 is fixed in the lower end supporting frame 9, and the crushing operation can be carried out after debugging; after the crushing operation is completed, the bolts connected between the rear frame 2 and the lower end supporting frame 9 are disassembled, the lifting hydraulic cylinder 8 is adjusted to enable the rear frame 2 to slowly ascend, the rear frame 2 is separated from the lower end supporting frame 9 (a jaw breaking system is separated from a traveling system), the crushing traveling system is operated and controlled to move away from the jaw breaking system, the jaw breaking system can be transported through the transport trolley without being hoisted and transferred onto the transport trolley by hoisting equipment, the disassembly and transportation damage rate is avoided, the transport cost is saved, and the security of transport and installation is improved. After transition, reinstallation is needed, so that the installation and debugging period is reduced, the productivity and efficiency of the crushing screen can be improved, and the crushing screen can be suitable for crushing processing operation in severe environments.

In the present invention, referring to fig. 2, 3 and 4, the lower support frame 9 is formed by welding and fixing the edges of the upper support frame and the edges of the lower support frame, a transfer passage 60 is formed between the upper support frame and the lower support frame, the feeding end of the transfer device 6 penetrates from the front end to the rear end of the transfer passage 60 between the upper support frame and the lower support frame, the upper support frame comprises an upper horizontal support beam 90 formed by two parallel H-steel shapes and a plurality of upper transverse support beams 90a fixed between the two upper horizontal support beams 90, the two upper horizontal support beams 90 form a horizontal frame support frame with the upper transverse support beams 90a, the lower support frame comprises a lower horizontal support beam 91 formed by two parallel H-steel shapes and a plurality of lower transverse support beams 91a fixed between the two lower horizontal support beams 91, the two lower horizontal support beams 91 form a horizontal frame support frame with the lower transverse support beams 91a, and the upper horizontal support beams 90 and the lower horizontal support beams 91 are mutually overlapped with each other for forming a transverse frame support frame between the upper horizontal support beams 91 and the lower horizontal support frames, and the lower horizontal support frames are mounted between the upper horizontal support frames and the lower horizontal support frames 91. A detachable limit beam 91b is arranged at the front end between the two lower horizontal support beams 91, the feeding end of the conveying device 6 gradually penetrates into the conveying channel 60 from the upper surface of the limit beam 91b, the feeding end of the conveying device 6 is stopped at a position 1 m-1.5 m away from the rear end of the lower horizontal support beam 91, when the conveying device 6 is put into the conveying channel 60 from the front end of the conveying channel 60, the limit beam 91b is detached from the lower horizontal support beam 91 firstly when the conveying device 6 is put into the conveying channel 60 from the front end of the front frame 1 so as not to block and install the conveying device 6, a conveying installation seat 91c is arranged on the opposite inner sides of the two lower horizontal support beams 91, the conveying device 6 is fixed on the lower horizontal support beam 91a through the conveying installation seat 91c, when the conveyor 6 is placed in the conveyor channel 60 formed between the upper cross support beam 90a and the lower cross support beam 91a, the conveyor 6 extends a distance of 1m to 1.5m below the discharge opening of the jaw crusher 5 and toward the rear end of the lower support frame 9 (lower cross support beam 91), i.e., the rear end of the conveyor 6 is 1m to 1.5m away from the rear end of the lower cross support beam 91, so that the crushed stone material falling from the jaw crusher 5 is scattered, the crushed stone falls on the conveyor 6 and is immediately conveyed toward the front end side of the frame 1, and since more stone is deposited in the conveyor 6 by falling, the stone will contact the upper cross support beam 90a during conveying, thereby leveling and conveying the stone in the conveyor 6.

In the invention, combining fig. 2, 3, 5, 6 and 7, supporting fixing heads 200 are respectively arranged at the front and rear end side parts of the rear frame 2, and the lifting hydraulic cylinders 8 are respectively fixed at the front and rear end side parts of the rear frame 2 through the supporting fixing heads 200; the supporting fixing head 200 comprises a supporting seat 201, a supporting shell 202 and an annular ring seat 203, wherein a first U-shaped groove 201a is formed in the surface of the supporting seat 201, an L-shaped step 204 is formed in the top of the back of the supporting shell 202, a second U-shaped groove 202a is formed in the back of the supporting shell 202 below the L-shaped step 204, an annular ring seat 203 is arranged at the fixing part of the lifting hydraulic cylinder 8, the fixing part of the lifting hydraulic cylinder 8 penetrates through the annular ring seat 203 to be fixed in a welding mode, the outer side of the annular ring seat 203 in the left-right direction relative to the movable jaw crusher is fixed in the second U-shaped groove 201a, the inner side of the annular ring seat 203 in the left-right direction relative to the movable jaw crusher is fixed in the first U-shaped groove 201a sliding mode, the supporting shell 202 is inserted into the first U-shaped groove 201a from bottom to top, the bottom of the L-shaped step 204 is in contact with the top of the first U-shaped groove 201a, the top of the L-shaped step 204 is flush with the supporting seat 201 and the top surface, the fixing part of the lifting hydraulic cylinder 8 penetrates through the supporting shell 202, the outer side of the supporting shell 203 in the left-right direction relative to the movable jaw crusher is fixed in the second U-shaped groove 201a side, the side of the annular ring seat 203 is fixed in the second U-shaped groove 203, the side of the supporting seat is more convenient to be inserted into the supporting seat, and the side of the supporting seat is more convenient to install, and the lifting cylinder is fixed in the side of the supporting seat 2, and the supporting seat is more convenient to be inserted into the side supporting seat and the supporting seat is fixed in the side and the supporting seat and the top side of the supporting seat.

In the invention, with reference to fig. 1, 2 and 3, rails 12 are respectively arranged at two side edges of the upper surface of the front frame 1 and two side edges of the upper surface of the rear frame 2, so as to facilitate operators to walk on the front frame 1 and the rear frame 2; the upper end of the first ladder stand 10 is rotatably arranged on the side walls of the front frame 1 through a lifting hook so as to rotate up and down and be detachably arranged, the first ladder stand 10 is retracted and is convenient to transport when rotating up, and the inner side of the lower end of the first ladder stand 10 is connected to the crawler travel assembly 3 through the supporting connecting frame 11; the two side walls of the rear frame 2 are provided with second crawling ladders 20, the inner sides of the second crawling ladders 20 are at least provided with a connecting plate 21, the upper ends of the second crawling ladders 20 are rotationally connected to the two side parts of the rear frame 2, the inner sides of the lower ends of the second crawling ladders 20 are connected to the crawler travel assembly 3 through the connecting plate 21, and the structure of the second crawling ladders 20 is identical to that of the first crawling ladders 10, so that the installation and the transportation are convenient.

In the present invention, as shown in fig. 8, 9, 10 and 11, the conveying device 6 includes a conveying support 61, a belt 62, a gear motor 63, and a driving roller 64 rotatably connected to the front end of the conveying support 61, a driven roller 65 rotatably connected to the rear end of the conveying support 61, the belt 62 is wound around the upper and lower surfaces of the conveying support 61 along the space between the driving roller 64 and the driven roller 65, the gear motor 63 is disposed at the front end side of the conveying support 61, the output shaft of the gear motor 63 is in driving connection with the driving roller 64, a tensioning device 66 for adjusting the tension of the belt 62 is disposed at the side of the conveying support 61 and at the rear side of the gear motor 63, the gear motor 63 is slidably disposed at both sides of the front end of the conveying support 61, and the gear motor 63 is pushed to slide on both sides of the front end of the conveying support 61 by the tensioning device 66, so that the gear motor 63 is driven to move toward the front end or the rear end of the conveying support 61, and the driving roller 64 is pushed to move the driven roller 65 toward the front end or the rear end of the conveying support 61, thereby achieving a stable sand conveying effect of tensioning the belt 62. A connecting seat 67 is arranged at the edge of the bottom surface of the conveying support frame 61, and the conveying support frame 61 is fixedly connected with a conveying installation seat 91c through the connecting seat 67 by bolts, so that the conveying support frame 61 is fixed in the lower end support frame 9; around the rear edge of the conveyor support frame 61 is provided an outwardly inclined upwardly projecting guard plate 68 which increases the amount of sand and gravel material stored by the belt 62. The two sides of the upper edge of the conveying support frame 61 are fixedly connected through a gantry-shaped brace 601, and the height of the gantry-shaped brace 601 is level with the lower edge of the material protection plate 68 or lower than the upper edge of the material protection plate 68; when sand falls on the transmission belt 62, the sand and stone materials higher than the material protection plate 68 are smoothed through the gantry-shaped brace 601, so that the sand and stone materials are flattened, the sand and stone materials are not easy to scatter in the transmission process, an upper rotating carrier roller assembly 602 which is folded into an arc shape is transversely arranged between two sides of the upper edge in the transmission support frame 61, so that the transmission belt 62 is arranged along the transmission support frame 61 in a groove shape, the crushed stone materials with jaws fall into the groove-shaped transmission belt 62 to be transmitted, more crushed stone materials can be conveyed, meanwhile, the sand and stone with jaws can be reduced to scatter from the transmission belt 62 at will, a lower rotating carrier roller 603 is transversely fixed below the two sides of the lower edge in the transmission support frame 61, the lower rotating carrier roller 603 transversely spans the transmission support frame 61, when the transmission belt 62 moves on the lower rotating carrier roller, a better supporting and pushing effect is achieved on the transmission belt 2, friction force of the transmission belt 62 is reduced, the transmission belt 62 is driven by the roller 64, the lower rotating carrier roller assembly 603 and the upper rotating motor assembly 65 and the upper rotating carrier roller assembly 602 are fixed on the upper side of the transmission support frame 61, and the front side of the transmission support frame 61 is adjusted by the tensioning device 66. A scraper 604 is transversely arranged at the front end of the conveying support frame 61 and positioned below the rear of the driving roller, the upper surface of the scraper 604 is in contact with the lower surface of the driving belt 62, the scraper 604 spans the lower surface of the driving belt 62, the scraper 604 is in compressed contact with the lower surface of the driving belt 62, the scraper 604 is in upward arch transition, the driving belt is prevented from loosening in the conveying process, when the driving belt 62 is horizontally placed, the scraper 604 and the lower rotating carrier roller 603 are at the same position or higher than the lower rotating carrier roller 603, the scraper 604 and the lower rotating carrier roller 603 simultaneously support the driving belt 62, and soil adhered on the surface of the driving belt 62 is scraped away by the scraper 604; the crushed stone materials often contain soil or water and often adhere to the surface of the driving belt 62, and when the crushed stone materials are transferred by the driving belt 62 and returned to the rear end to run and rotate, the mud scraping plate 604 contacts with the surface of the driving belt 62 to scrape the adhered soil or sand powder away.

In the invention, as shown in fig. 12 and 13, at least one group of aligning roller assemblies 605 are transversely arranged below the conveying support frame 61, the aligning roller assemblies 605 are arranged between adjacent lower rotating rollers 603 at intervals, when the length of a transmission belt exceeds 15m, one group of aligning roller assemblies 605 are additionally arranged every 8-12 m, the aligning roller assemblies 605 comprise a lower joist 605a, an upper adjusting joist 605b, aligning rollers 605c and a deflection adjusting roller 605d, two ends of the lower joist 605a are transversely fixed below the conveying support frame 61 through a vertically arranged fixed support frame 605e, a first rotating shaft 605f is arranged in the center of the lower joist 605a, the lower end of the first rotating shaft 605f is fixed on the lower joist 605a, the upper end of the first rotating shaft 605f is connected with the center of the upper adjusting joist 605b, thereby the upper adjusting joist 605b is rotatably arranged on the lower joist 605a between the two fixed support frames e through the first rotating shaft 605f, the two ends of the aligning idler 605c are horizontally connected and fixed at the two ends of the upper adjusting joist 605b through the idler brackets 605g which are vertically arranged, when the transmission belt 62 deflects in the forward transmission process, the first rotary shaft 605f drives the upper adjusting joist 605b to deflect and rotate, the deflection adjusting roller 605d is arranged in front of the two ends of the aligning idler 605c through the L-shaped supporting shaft 605h, the fixed end of the L-shaped supporting shaft 605h is hinged with the fixed supporting frame 605e, the deflection adjusting roller 605d is sleeved on the outer wall of the free end of the L-shaped supporting shaft 605h, the L-shaped supporting shaft 605h and the deflection adjusting roller 605d are arranged at the front side position of the lower joist 605a, the free end of the L-shaped supporting shaft 605h is provided with a tension spring 605i, the tension spring 605i is connected between the fixed supporting frame 605e and the free end of the L-shaped supporting shaft 605h, an L-shaped blocking block 605j is arranged at the rear side of the lower joist 605a and positioned at two sides of the first rotary shaft 605f, the fixed end of the L-shaped blocking block 605j is slidably arranged on the lower joist 605a, one end of the L-shaped blocking block 605j extends upwards to be at least flush with the height of the aligning idler 605c, when the driving belt 62 is pressed on the surface of the aligning idler assembly 605 to run, the edge of the driving belt 62 presses on the offset adjusting roller 605d, if the driving belt 62 deflects during the conveying running process, the L-shaped supporting shaft 605h drives the offset adjusting roller 605d to horizontally swing back and forth at the outer side of the upper adjusting idler 605b, and simultaneously, the upper adjusting idler 605b is caused to rotate by an offset angle by taking the aligning idler 605c as the center, during the rotation, the aligning idler 605c on the upper adjusting idler 605b is contacted with the L-shaped blocking block 605j, the aligning idler 605c is prevented from further offset rotation, at this time, the edge of the driving belt 62 will exert a thrust force on the offset adjusting roller 605d, at this time, the L-shaped supporting shaft 605h horizontally rotates by an offset angle with the fixed supporting frame 605e as the center, the L-shaped supporting shaft 605h is gradually rotated to the original position under the elastic force of the extension spring 605i, the aligning idler 605c is driven by the aligning idler 605c to drive the driving belt 62 to be automatically returned to the original position after being offset, so as to realize automatic offset correction of the offset, and the driving belt 62 spans from one end close to the driving roller 64 or the driven roller 65 and is arranged below the conveying supporting frame 61 to adjust the driving belt 62, so that the offset of the driving belt 62 is prevented, and the running reliability of the driving belt is greatly improved; when the aligning roller assembly 605 is installed, a fixed supporting frame 605e is vertically welded at two ends of an L-shaped supporting shaft 605h, a deflection adjusting roller 605d is respectively installed on the fixed supporting frame 605e through the L-shaped supporting shaft 605h on one side of the front side of a lower supporting frame 605a, the deflection adjusting roller 605d is perpendicular to the lower supporting frame 605a and a transmission belt 62, an L-shaped blocking block 605j is horizontally and vertically arranged on the lower supporting frame 605a on one side of the rear side of the lower supporting frame 605a in a sliding manner, the free end of the L-shaped blocking block 605j extends upwards towards the rear side of the aligning roller 605c, the degree of freedom of the L-shaped blocking block 605j is level with the height of the aligning roller 605c, then the aligning roller 605c is arranged on the first rotating shaft 605f through an upper adjusting supporting beam 605b, the aligning roller 605c, the upper adjusting supporting beam 605b and the lower supporting beam 605a are kept parallel from top to bottom and are arranged on the same vertical surface in an installation manner, and then the spring 605i is installed between the top end of the fixed supporting frame 605e and the free end of the L-shaped supporting frame 605 h; the L-shaped blocking blocks 605j on both sides of the L-shaped support shaft 605h are adjusted so that the L-shaped blocking blocks 605j and the L-shaped support shaft 605h are installed within a desired prescribed distance, thereby defining the position of the rotational offset of the upper adjustment joist 605 b.

In the invention, the upper rotating carrier roller assembly 602 comprises a carrier roller mounting support plate 6021, a carrier roller connecting plate assembly 6022, an L-shaped edge support plate 6023, a left carrier roller 6024, a middle carrier roller 6025 and a right carrier roller 6026 which are respectively arranged on the carrier roller mounting support plate 6021, wherein the left carrier roller 6024, the middle carrier roller 6025 and the right carrier roller 6026 form an arc concave section on the carrier roller mounting support plate 6021, one end of the left carrier roller 6024, one end of the right carrier roller 6026 and two ends of the middle carrier roller 6025 are respectively detachably connected on the carrier roller mounting support plate 6021 through the carrier roller connecting plate assembly 6022, the L-shaped edge support plate 6023 is arranged at two ends of the carrier roller mounting support plate 6021, the other end of the left carrier roller 6024 and the other end of the right carrier roller 6026 are respectively detachably connected at two ends of the carrier roller mounting support plate 6021 through the L-shaped edge support plate 6023, so that a driving belt 62 is laid in the arc concave section, after the upper rotating carrier roller assembly 602 is arranged on the carrier roller mounting support frame 61, the driving belt 62 is arranged in a conveying space formed in the arc concave section, and when the driving belt 62 runs, the driving belt 62 and the middle carrier roller assembly 6024 and the middle carrier roller 6025 can rotate flexibly and flexibly in time, and the running force is adjusted; the short side end of the L-shaped edge support plate 6023 is provided with the guide roller 60231, the guide roller 60231 extrudes the edge of the driving belt 62 to prevent the driving belt 62 from shifting in the conveying process, so that the abrasion between the edge of the driving belt 62 and the conveying frame is reduced, the conveying is convenient, the stability of the driving belt is ensured, the used carrier roller can be made of a smooth nylon material, and when the driving belt 62 inclines to one direction in the running process, the driving belt 62 is limited to deviate.

In the present invention, as shown in fig. 1, 2, 3 and 4, the carrier roller connection plate assembly 6022 includes a carrier roller mounting base plate 60220, a first support connection plate 60221 fixed at one end of the carrier roller mounting base plate 60220, and a second support connection plate 60222, the first support connection plate 60221 is vertically fixed on one end surface of the carrier roller mounting base plate 60220, a fixed connection portion 60223 is provided along a top end side wall of the second support connection plate 60222, a top end of the second support connection plate 60222 is fixedly connected with the first support connection plate 60221 through the fixed connection portion 60223, a lower end of the second support connection plate 60222 is inclined downward and along the other end direction of the carrier roller mounting base plate 60220, so that the lower end of the second support connection plate 60222 is inclined and fixed on the carrier roller mounting base plate 60220, the second support connection plate 60222 is inclined and fixed between the fixed connection portion 60220 and the fixed connection portion 60223, a lower end of the second support connection plate 60222 is far away from one side of the first support connection plate 60220 and a top end of the second support connection plate 6035 is not connected with the top end of the first support connection plate 6035 through an included angle between the second support connection plate 6028 and the top end of the second support connection plate 6035; the two ends of the middle carrier roller 6025 are respectively fixed on a carrier roller mounting bottom plate 60220 through a first support connecting plate 60221, one end of the left carrier roller 6024 and one end of the right carrier roller 6026 are respectively detachably connected and fixed on the carrier roller mounting bottom plate 60220 through a second support connecting plate 60222, the lower surface of the long side of the L-shaped edge support plate 6023 is obliquely fixed on the carrier roller mounting support plate 6021 through the carrier roller mounting bottom plate 60220, the end part of the long side of the L-shaped edge support plate 6023 is connected with the bottom end of the second support connecting plate 60222, and the other end of the left carrier roller 6024 and the other end of the right carrier roller 6026 are respectively detachably connected with the end part of the short side of the L-shaped edge support plate 6023; in the invention, clamping ports 60224 which are mutually and symmetrically communicated are arranged among the top end of the first support connecting plate 60221, the top end of the second support connecting plate 60222 and the fixed connecting part 60223, screw holes 60225 which are arranged in the fixed connecting part 60223 and are along the width direction of the carrier roller mounting bottom plate 60220, the horizontal height of the lowest part of the clamping ports 60224 is positioned below the screw holes 60225, two ends of the middle carrier roller 6025 are fixedly clamped on the first support connecting plate 60221 through the clamping ports 60224, and one ends of the left carrier roller 6024 are fixedly clamped on the second support connecting plate 60222 through the clamping ports 60224; screw rods 60226 are arranged in screw rod holes 60225, one end of a left carrier roller 6024, one end of a right carrier roller 6026 and two ends of a middle carrier roller 6025 are respectively clamped in clamping interfaces 60224 on the corresponding sides in screw rod holes 60225, in the invention, two ends of the middle carrier roller 6025 are fixed on a carrier roller installation support plate 6021 through carrier roller connecting plate assemblies 6022 which are mirror symmetry, more particularly, two ends of a central support shaft in the middle carrier roller 6025 are arranged in clamping interfaces 60224 on a first support connecting plate 60221, and when the transmission belt is driven on the middle carrier roller 6025, two ends of the middle carrier roller 6025 are supported and fixed through clamping interfaces 60224 on the first support connecting plate 60221; an L-shaped edge support plate 6023 is obliquely arranged at the left end and the right end of the carrier roller mounting support plate 6021 respectively, one end central support shaft in the left carrier roller 6024 is inserted into a surface of the short side of the L-shaped edge support plate 6023 from the surface of the short side of the L-shaped edge support plate 6023 or is clamped on a notch (not shown) of the short side of the L-shaped edge support plate 6023, the other end central support shaft in the left carrier roller 6024 is arranged on a second support connecting plate 60222 arranged at the other end of the carrier roller mounting support plate 6021 and is supported and fixed through a clamping interface 60224 on the second support connecting plate 60222 at the side; on the right side of the carrier roller mounting support plate 6021 (on the right end of the middle carrier roller 6025), one end center support shaft in the right carrier roller 6026 is inserted into a shaft hole formed on the surface or clamped on a notch (not shown) formed on the short side of the L-shaped edge support plate 6023 from the surface corresponding to the short side of the L-shaped edge support plate 6023, the other end center support shaft in the right carrier roller 6026 is placed on a second support connection plate 60222 formed on the other end of the carrier roller mounting support plate 6021 and is supported and fixed through a clamping interface 60224 on the second support connection plate 60222 on the side, after the left carrier roller 6024, the middle carrier roller 6025 and the right carrier roller 6026 are respectively placed on the corresponding side of the clamping interface 60224 formed between the top end of the L-shaped edge support plate 6023 and the top end of the first support connection plate 60221, the top end of the second support connection plate 60222 and the fixed connection portion 60223, a screw rod hole 60225 is inserted into the screw rod 60226 in the fixed connection portion 60223, the screw 60226 is penetrated from one end to the other end of the fixed connecting part 60223, the screw 60226 can be screwed and fastened on the side walls of the two ends of the fixed connecting part 60223 through nuts at the two ends of the screw 60226, at the moment, in the clamping interfaces 60224 forming transition on the first support connecting plate 60221, the second support connecting plate 60222 and the fixed connecting part 60223, the central support shaft of the left support roller 6024, the central support shaft of the middle support roller 6025 and the central support shaft of the right support roller 6026 are respectively positioned below the screw hole 60225, the central support shaft of the support roller is blocked and limited through the screw 60226, the support roller is prevented from falling off from the first support connecting plate 60221 and the second support connecting plate 60222, the left support roller 6024, the middle support roller 6025 and the right support roller 6026 are clamped on the support roller connecting plate assembly and the L-shaped edge support plate, the upper rotating support roller assembly 602 is installed and formed, and is not easy to fall off in the transportation process, the installation and the disassembly are convenient, and even if the carrier roller falls off or is damaged, the installation is also convenient; during assembly, a carrier roller mounting support plate 6021 on the upper rotating carrier roller assembly 602 is fixed on a conveying support frame 61, then a carrier roller connecting plate assembly 6022 and an L-shaped edge support plate 6023 are assembled on the carrier roller mounting support plate 6021, and then a left carrier roller 6024, a middle carrier roller 6025 and a right carrier roller 6026 are mounted on the carrier roller connecting plate assembly 6022 to form an upper rotating carrier roller assembly 602 and are mounted on the conveying support frame 61 through the carrier roller mounting support plate 6021; the support plate 60227 for supporting the lower surface of the long side of the L-shaped edge support plate 6023 is vertically arranged on the support roller mounting bottom plate 60220, the support plate 60227 is positioned between the middle part and the lower end part of the lower surface of the long side of the L-shaped edge support plate 3, and the support plate 60227 and the axis of the corresponding side left support roller 6024 and the axis of the right support roller 6026 are on the same vertical plane, so that the support strength between the L-shaped edge support plate 6023 and the support roller mounting bottom plate 60220 is enhanced, and the mounting stability of the middle support roller 6025 and the right support roller 6026 is improved.

As another embodiment of the present invention, as shown in fig. 14, a fixed support plate 60210 is horizontally disposed below the carrier roller mounting support plate 6021, a second rotation shaft 60211 is disposed at the center of the fixed support plate 60210, the bottom end of the carrier roller mounting support plate 6021 is fixed to the fixed support plate 60210 by a second rotation shaft 60211, and the second rotation shaft 60211 is used for controlling the swing amplitude of the carrier roller mounting support plate 6021; when the transmission belt 62 is inclined and deviated in the running process, the transmission belt 62 contacts with the guide roller 60231, the guide roller 60231 is stressed by the lateral force of the deviation of the transmission belt 62, so that the two sides of the transmission roller on the transmission roller mounting support plate 6021 are unbalanced, the transmission roller mounting support plate 6021 deflects towards the front of the deviation of the transmission belt 62 by taking the second rotary shaft 60211 as the center, after deflection, the transmission roller mounting support plate 6021 has a rotary acting force under the action of the second rotary shaft 60211, when the transmission roller rotates, the transmission belt 62 is reset by friction force generated by relative speed deviation of the running speed of the transmission belt 62, and along with the reset of the transmission belt 62, the transmission roller is restored to the position perpendicular to the transmission belt 62, so that the transmission belt 62 runs under the state of no deviation, thereby avoiding the phenomenon of inflexible rotation or blocking in the running process of the transmission belt 62, and the two ends of the transmission roller mounting support plate 6021 are outwards extended with limiting pieces 60212, the limiting pieces 60212 are springs or rigid rods for preventing the transmission roller mounting support plate 6021 from rotating at an overlarge angle, and the transmission roller mounting support plate 6021 is pulled back to the original position under the action of the elasticity of the springs.

According to another aspect of the present invention, referring to fig. 1 to 13, a method for installing a movable jaw crusher according to the present invention comprises the steps of:

step 1: firstly, assembling the crawler traveling assembly 3, the lower end supporting frame 9, the front frame 1 and the power driving assembly 4 into a traveling system, assembling the rear frame 2, the jaw breaking host 5, the feeding hopper 7 and the lifting hydraulic cylinder 8 into a jaw breaking system, transferring the traveling system and the jaw breaking system to a construction operation site, firstly, installing and fixing the traveling system, then, adjusting the lifting height of the lifting hydraulic cylinder 8, and then controlling the crushing traveling system to slowly travel to the lower side of the rear frame 2, so that the lower end supporting frame 9 is positioned right below the rear frame 2 and can be mutually matched and installed; thereby avoiding dislocation when the rear frame 2 is firmly matched with the lower end supporting frame 9;

step 2: the lifting hydraulic cylinder 8 is regulated to slowly descend, the rear frame 2 is firmly and fittingly placed on the lower end supporting frame 9 and then connected and fixed through bolts, so that the heavy equipment is avoided to hoist and mount the crushing system to the crushing system, the conveying device 6 is inserted from the front frame 1 and passes through a conveying channel 60 formed in the lower end supporting frame 9, then the conveying device 6 is fixed in the lower end supporting frame 9, a tensioning regulating device 66 arranged on the conveying device 6 is regulated, the reducing motor 63 is pushed to slide on two sides of the front end of the conveying supporting frame 61, a driving roller 64 on the conveying device 6 is pushed to drive a driven roller 65 to move towards the front end or the rear end of the conveying supporting frame 61, the purpose of tensioning the conveying belt 62 is achieved, and then a self-aligning carrier roller assembly 605 is installed and regulated to enable the tightness of the conveying belt 62 to be properly arranged on the conveying supporting frame 61, and crushing operation can be carried out after debugging;

Step 3: after the crushing operation is completed, the bolts connected between the rear frame 2 and the lower end supporting frame 9 are disassembled, the lifting hydraulic cylinder 8 is adjusted to slowly lift, the jaw breaking system is separated from the traveling system, and the traveling system is controlled to move and be far away from the jaw breaking system. Can transport broken system of jaw through the transfer car (buggy) through simple separation side, need not lifting device hoist and mount and shift to on the transfer car (buggy), avoided dismouting and transportation damage rate, saved transportation cost and promoted the security of transporting the installation.

In the invention, the mounting sequence of the rear frame 2 and the mounting sequence of the conveying device 6 can be interchanged, the conveying device 6 is firstly inserted into a conveying channel 60 formed in the lower end supporting frame 9 from the front frame 1, then the left side and the right side of the conveying device 6 are relatively and stably mounted in the conveying channel 60 in the lower end supporting frame 9, then the crushing travelling system is controlled to slowly travel to the lower part of the rear frame 2, the lifting hydraulic cylinder 8 is regulated to slowly descend, the rear frame 2 is firmly matched and placed on the lower end supporting frame 9, then the rear frame is connected and fixed through bolts, and the crushing operation can be carried out after the debugging is finished.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (10)

1. A movable jaw crusher, characterized in that: the jaw crusher comprises a jaw crusher system and a traveling system, wherein the traveling system is composed of a front frame, a power driving assembly, a crawler traveling assembly, a conveying device and a lower end supporting frame, the jaw crusher system is composed of a rear frame, a jaw crusher main body, an upper hopper and lifting hydraulic cylinders, the lower end supporting frame is fixed on the crawler traveling assembly through bolts, the bottom end of the rear frame is detachably arranged on the lower end supporting frame through bolts, the bottom end of the rear frame is arranged on the crawler traveling assembly through the lower end supporting frame, the power driving assembly is arranged on the front frame, the front frame is fixedly arranged on the crawler traveling assembly through the lower end supporting frame, the front frame and the rear frame are distributed on the same horizontal surface plane of the lower end supporting frame, the jaw crusher main body is fixedly arranged on the rear frame, the upper hopper is positioned at the rear upper part of the crawler crusher main body, a discharge port of the upper hopper is communicated with a feed inlet of the broken main body, the side part of the rear frame is fixedly arranged on the side part of the lower end supporting frame, the lifting hydraulic cylinders are fixedly arranged at the two ends of the lower end supporting frame, the lifting hydraulic cylinders extend from the two sides of the front frame to the lower end supporting frame, and extend from the lower end supporting frame to the two sides of the crawler crusher main body, and the lifting device is fixedly arranged at two ends of the front frame.

2. A mobile jaw crusher as claimed in claim 1, wherein: the lower end support frame is formed by welding and superposing and fixing the edge of the upper layer support frame and the edge of the lower layer support frame, a conveying channel is formed between the upper layer support frame and the lower layer support frame, the feeding end of the conveying device penetrates into the front end of the conveying channel between the upper layer support frame and the lower layer support frame to be close to the rear end, the upper layer support frame comprises an upper horizontal support beam formed by two parallel H-shaped steel types and a plurality of upper transverse support beams fixed between the two upper horizontal support beams, the lower layer support frame comprises a lower horizontal support beam formed by two parallel H-shaped steel types and a plurality of lower transverse support beams fixed between the two lower horizontal support beams, the upper horizontal support beam and the lower horizontal support beam are mutually superposed and welded, and the conveying channel for installing the conveying device is formed between the upper transverse support beam and the lower transverse support beam.

3. A mobile jaw crusher as claimed in claim 2, wherein: the front end between two lower horizontal supporting beams is provided with a detachable limit beam, the feeding end of the conveying device gradually penetrates into the conveying channel from the upper surface of the limit beam, so that the feeding end of the conveying device is stopped at a position 1 m-1.5 m away from the rear end of the lower horizontal supporting beam, the opposite inner sides of the two lower horizontal supporting beams are provided with conveying installation seats, and the conveying device is fixed on the lower horizontal supporting beam through the conveying installation seats.

4. A mobile jaw crusher according to claim 1 or 2 or 3, wherein: the conveying device comprises a conveying support frame, a driving roller, a speed reducing motor and a driven roller, wherein the driving roller is rotationally connected to the front end of the conveying support frame, the driven roller is rotationally connected to the rear end of the conveying support frame, the driving belt winds on the upper surface and the lower surface of the conveying support frame between the driving roller and the driven roller, the speed reducing motor is arranged on the side part of the front end of the conveying support frame, an output shaft of the speed reducing motor is in transmission connection with the driving roller, a tensioning adjusting device for adjusting the tensioning of the driving belt is arranged on the side part of the conveying support frame and the rear side of the speed reducing motor, and the speed reducing motor is slidably arranged on the two sides of the front end of the conveying support frame.

5. The mobile jaw crusher of claim 4, wherein: the front end and the rear end of the rear frame are respectively provided with a supporting fixing head, and the lifting hydraulic cylinder is respectively fixed on the front end and the rear end of the rear frame through the supporting fixing heads.

6. The mobile jaw crusher of claim 5, wherein: the support fixing head comprises a support seat, a support shell and an annular ring seat, a first U-shaped groove is formed in the surface of the support seat, an L-shaped step is formed in the top of the back surface of the support shell, a second U-shaped groove is formed in the back surface of the support shell below the L-shaped step, the annular ring seat is arranged on the fixing portion of the lifting hydraulic cylinder, the fixing portion of the lifting hydraulic cylinder penetrates through the annular ring seat to be welded and fixed, the outer side of the annular ring seat, which is opposite to the left-right direction of the movable jaw crusher, is fixed in the second U-shaped groove, the inner side of the annular ring seat, which is opposite to the left-right direction of the movable jaw crusher, is fixed in the first U-shaped groove, the support shell is inserted into the first U-shaped groove in a sliding mode from bottom to top, the bottom of the L-shaped step is in contact with the top of the first U-shaped groove, the top of the L-shaped step is flush with the top surface of the support seat, and the fixing portion of the lifting hydraulic cylinder are fixed on the front end and rear end sides of the rear frame through the support seat, the support shell and the annular ring seat.

7. A mobile jaw crusher as claimed in claim 1, wherein: and the two side edges of the upper surface of the front frame and the two side edges of the upper surface of the rear frame are respectively provided with a fence.

8. A mobile jaw crusher according to claim 1 or 7, characterized in that: the side walls of the two sides of the front frame are provided with first climbing ladders, the inner sides of the first climbing ladders are provided with supporting connecting frames, the upper ends of the first climbing ladders are rotationally connected with the side walls of the two sides of the front frame, the lower extreme inboard of this first cat ladder is connected on the track walking assembly through the support link, is provided with the lifting hook in the upper end of first cat ladder, and the upper end of first cat ladder 10 is installed on the lateral wall of preceding frame through the lifting hook rotation.

9. A mobile jaw crusher according to claim 1 or 5, wherein: the crawler belt walking device is characterized in that second crawling ladders are arranged on the side walls of the two sides of the rear rack, at least one connecting plate is arranged on the inner side of each second crawling ladder, the upper ends of the second crawling ladders are rotationally connected to the side parts of the two sides of the rear rack, and the inner side of the lower ends of the second crawling ladders are connected to the crawler belt walking assembly through the connecting plates.

10. A method of installing a mobile jaw crusher according to any one of claims 1 to 9, wherein: the method comprises the following steps:

Step 1: firstly, the crawler traveling assembly, the lower end supporting frame, the front frame and the power driving assembly are assembled and formed into a traveling system, the rear frame, the jaw breaking main machine, the feeding hopper and the lifting hydraulic cylinder are assembled and formed into a jaw breaking system, and then the traveling system and the jaw breaking system are transported to a construction operation site, and the lifting height of the lifting hydraulic cylinder is adjusted to control the crushing traveling system to travel to the lower side of the rear frame, so that the lower end supporting frame is positioned right below the rear frame and can be mutually matched and installed;

step 2: the lifting hydraulic cylinder is regulated to slowly descend, the rear frame is firmly matched with the lower end supporting frame and then is connected and fixed through bolts, the conveying device is inserted into a conveying channel formed in the lower end supporting frame from the front frame, then the conveying device is fixed in the lower end supporting frame, and crushing operation can be carried out after debugging is finished;

step 3: after the crushing operation is completed, the bolts connected between the rear frame and the lower end supporting frame are disassembled, the lifting hydraulic cylinder is adjusted to slowly lift the rear frame, the jaw breaking system is separated from the traveling system, and the traveling system is controlled to move and be far away from the jaw breaking system.