CN214243559U

CN214243559U - Thrust wheel of crawler crane

Info

Publication number: CN214243559U
Application number: CN202023348008.7U
Authority: CN
Inventors: 王文明; 陈红华
Original assignee: Jiangsu Renmin Machinery Co ltd
Current assignee: Jiangsu Renmin Machinery Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-21
Anticipated expiration: 2030-12-31

Abstract

The application relates to a thrust wheel of a crawler crane, which belongs to the field of cranes and comprises a thrust wheel body, a thrust wheel shaft and a side cover, wherein the thrust wheel shaft is arranged in the thrust wheel body in a penetrating way, the side cover is fixedly sleeved on the circumferential surface of the thrust wheel shaft close to the two ends of the thrust wheel body, a connecting groove is arranged on the end surface of the thrust wheel body, the side cover is attached to the bottom surface of the connecting groove, a connecting structure is arranged between the side cover and the thrust wheel body and comprises a plurality of clamping blocks and a plurality of springs, a plurality of clamping grooves are arranged on the side wall of the connecting groove, a mounting groove is arranged on the side wall of the side cover, and the springs and the clamping blocks are both positioned in the mounting grooves, spring one end and mounting groove fixed connection, the other end and fixture block fixed connection, the one end that the spring was kept away from to the fixture block is located the draw-in groove, has correspondingly seted up a plurality of logical grooves on the outer wall of side cap, leads to the inslot and wears to be equipped with the sliding block, sliding block and fixture block fixed connection. This application has the installation and the dismantlement of the staff of being convenient for to the thrust wheel to the effect of convenient maintenance change to the thrust wheel.

Description

Thrust wheel of crawler crane

Technical Field

The application relates to the field of cranes, in particular to a thrust wheel of a crawler crane.

Background

The crawler crane is a mobile crane for carrying out the operations of material lifting, transportation, loading and unloading, installation and the like. The thrust wheels are used as bearing parts of the chassis and roll on the guide rails or the surface of the crawler belt, so that the transverse slipping of the crawler belt is limited. The thrust wheel is used as a main bearing structural member of the crawler crane, and particularly in a large-tonnage crawler crane, the design and manufacturing quality of the thrust wheel are directly related to the safety of the whole crawler crane.

Relevant notice number is CN 211642391U's chinese utility model, and it discloses a dismantle convenient thrust wheel of change, including the thrust wheel body, the stopper has all been welded to the both sides of thrust wheel body, has seted up the installation shaft hole in the thrust wheel body, is provided with the axle sleeve in the installation shaft hole, and the axle sleeve internal rotation is provided with the axostylus axostyle, is close to both ends on the outer wall of axostylus axostyle and all overlaps and be equipped with the side cap, and the outer wall of axostylus axostyle is located both ends cover and is equipped with the sleeve, and the welding has the supporting shoe on the telescopic outer wall.

In view of the above-mentioned related art, the inventor believes that when a component in the thrust wheel is damaged or fails, the thrust wheel needs to be disassembled, and the disassembly of the related thrust wheel is inconvenient and the maintenance of the thrust wheel is not easy.

SUMMERY OF THE UTILITY MODEL

In order to improve the dismantlement inconvenience of thrust wheel body, be difficult for maintaining the problem to the thrust wheel, this application provides a crawler crane's thrust wheel.

The application provides a crawler crane's thrust wheel adopts following technical scheme:

a thrust wheel of a crawler crane comprises a thrust wheel body, a thrust wheel shaft and a side cover, wherein the thrust wheel shaft is arranged in the thrust wheel body in a penetrating mode, the side cover is fixedly sleeved on the circumferential surface, close to two ends of the thrust wheel body, of the thrust wheel shaft, a connecting groove is formed in the axial end face of the thrust wheel body, one surface, close to the connecting groove, of the side cover is attached to the bottom surface of the connecting groove, a connecting structure is arranged between the side cover and the thrust wheel body and comprises a plurality of clamping blocks and a plurality of springs, a plurality of clamping grooves are formed in the circumferential side wall of the connecting groove, a mounting groove is formed in the side wall, close to the clamping grooves, of the side cover, the springs and the clamping blocks are located in the mounting grooves, one end of each spring is fixedly connected with the bottom of the corresponding mounting groove, the other end of each spring is fixedly connected with the corresponding clamping block, one end, far away from the corresponding spring, of the corresponding clamping block is located in the corresponding clamping groove, and the side cover and the thrust wheel body are clamped with the corresponding clamping grooves through the corresponding clamping blocks, the side cover is close to and has seted up a plurality of logical grooves on the outer wall of each mounting groove correspondingly, each lead to groove and mounting groove intercommunication, wear to be equipped with the sliding block in leading to the inslot, the one end that the sliding block is close to the mounting groove is close to the lateral wall fixed connection of spring with the fixture block.

Through adopting above-mentioned technical scheme, when carrying out side cap and thrust wheel body and dismantling, the staff applys external force and stirs the sliding block towards the bottom direction of mounting groove, and the sliding block drives the fixture block retraction mounting groove, and the sliding block breaks away from with the draw-in groove mutually, later can dismantle the side cap from the thrust wheel body, easy operation. On the contrary, when carrying out the installation of side cap and thrust wheel body, the staff only need move the fixture block to the mounting groove through the sliding block in, place the side cap laminating again in connecting groove department to make draw-in groove and fixture block align, the staff relaxs the pressure of applying to the sliding block, afterwards, the fixture block moves towards the outside of mounting groove under the effect of spring force, inserts the draw-in groove from the fixture block, accomplishes being connected of side cap and thrust wheel body. Thereby be convenient for the staff to the installation and the dismantlement of thrust wheel body, the convenient maintenance change to the thrust wheel body.

Optionally, one surface of the clamping block, which is close to the clamping groove, is an inclined surface, and the inclined surface is arranged in an inclined manner in the direction away from the thrust wheel body.

Through adopting above-mentioned technical scheme, when carrying out the installation of side cap and thrust wheel body, the staff only needs to aim at the draw-in groove with the fixture block, presses in the whole orientation connecting groove of side cap afterwards, and the inclined plane of fixture block receives the extrusion force at connecting groove's border to make in the fixture block retraction mounting groove, thereby be convenient for the installation of curb plate and thrust wheel body.

Optionally, a plurality of anti-slip ribs are fixedly arranged on one end face, away from the clamping block, of the sliding block.

Through adopting above-mentioned technical scheme, when carrying out the dismantlement of side cap and thrust wheel body, the staff needs manual pulling sliding block, and the antiskid arris strip is used for increasing the friction between sliding block and the hand, is convenient for stir the sliding block to the convenience is dismantled side cap and thrust wheel body.

Optionally, an elastic pad is bonded and fixed on the end surface of the side cover close to the thrust wheel body, the elastic pad is located in the connecting groove, and the elastic pad is abutted and attached to the thrust wheel body.

Through adopting above-mentioned technical scheme, when side cap and thrust wheel body are connected, the cushion is located connecting groove, and the cushion is in compression state, and then applys elasticity to side cap and thrust wheel body to the junction of side cap and thrust wheel body is in the state of tightening, makes difficult appearance rocking between side cap and the thrust wheel body, improves the stability of connecting between side cap and the thrust wheel body.

Optionally, a plurality of anti-slip grooves are formed in the bottom surface of the connecting groove, and the anti-slip grooves are arranged along the circumferential direction of the connecting groove.

Through adopting above-mentioned technical scheme, when the cushion was installed in connecting groove, the cushion was in compression deformation's state to the cushion is close to the position embedding non-slip groove in the non-slip groove, thereby is in the gomphosis each other between cushion and the non-slip groove, thereby is difficult for appearing relative rotation between cushion and the thrust wheel body, further improves the stability of connecting between side cap and the thrust wheel body.

Optionally, a mounting unthreaded hole is formed in the circumferential surface of the side cover, a mounting threaded hole is formed in the circumferential surface of the supporting wheel shaft, the mounting unthreaded hole and the mounting threaded hole are coaxial, the mounting unthreaded hole is communicated with the mounting threaded hole, a fixing bolt penetrates through the mounting unthreaded hole, and one end, close to the supporting wheel shaft, of the fixing bolt penetrates through the mounting threaded hole and is in threaded connection with the mounting threaded hole.

Through adopting above-mentioned technical scheme, when carrying out the connection of side cap and thrust wheel axle, establish the side cap cover on the thrust wheel axle, make installation unthreaded hole and installation screw hole coaxial line, penetrate fixing bolt from the installation unthreaded hole again to rotating fixing bolt makes fixing bolt and installation screw hole threaded connection, accomplishes the erection joint of side cap and thrust wheel axle then, easy operation, the connection is stable.

Optionally, a wear-resistant layer is fixedly arranged on the outer circumferential surface of the thrust wheel body.

Through adopting above-mentioned technical scheme, improve the wear resistance of thrust wheel body, and then improve the life of this thrust wheel.

Optionally, a sealing groove is formed in the edge, close to the thrust wheel shaft, of the axial end face of the thrust wheel shaft, a sealing ring is installed in the sealing groove, a check ring is fixedly arranged on one surface, close to the sealing groove, of the side cover, and the check ring is abutted to the sealing ring.

Through adopting above-mentioned technical scheme, the sealing washer is used for improving the inside leakproofness of thrust wheel, reduces revealing of lubricating oil in the thrust wheel, and retaining ring and sealing washer butt for sealing washer elastic deformation, thereby laminating more between sealing washer and the thrust wheel body and the thrust wheel shaft, improve sealed effect.

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

1. by arranging the connecting structure, the side cover and the thrust wheel body can be conveniently mounted and dismounted, and the thrust wheel can be conveniently maintained and replaced;

2. the elastic pad and the anti-slip groove are arranged, so that the connection stability between the side cover and the thrust wheel body is improved;

3. through setting up sealing washer and retaining ring, improve the inside sealed effect of thrust wheel.

Drawings

Fig. 1 is a schematic overall structure diagram of a track roller of a crawler crane according to an embodiment of the present application.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is an exploded view of the overall structure of a track roller of a crawler crane according to an embodiment of the present disclosure.

Description of reference numerals: 1. a thrust wheel body; 11. mounting holes; 12. a connecting groove; 13. a sealing groove; 131. a seal ring; 14. an anti-slip groove; 15. a card slot; 2. a thrust wheel axle; 21. installing a threaded hole; 22. fixing the bolt; 3. a side cover; 31. mounting a light hole; 32. mounting grooves; 33. a through groove; 34. an elastic pad; 35. a retainer ring; 4. a connecting structure; 41. a clamping block; 411. an inclined surface; 42. a spring; 43. a sliding block; 431. anti-slip ribs.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a thrust wheel of a crawler crane. Referring to fig. 1, a thrust wheel of a crawler crane includes a thrust wheel body 1, a thrust wheel shaft 2, and a side cover 3. The thrust wheel shaft 2 penetrates through the thrust wheel body 1, the thrust wheel shaft 2 and the thrust wheel body 1 are coaxial, the side covers 3 are sleeved on the peripheral surfaces of two ends of the thrust wheel shaft 2, and the side covers 3 are fixedly attached to the axial end surfaces of the thrust wheel body 1. The outer circumferential surface of the thrust wheel body 1 is provided with a wear-resistant layer (not shown in the figure), and the wear-resistant layer is integrally formed on the outer circumferential surface of the thrust wheel body 1 through a lost foam negative pressure casting and infiltration process.

Referring to fig. 2, a mounting unthreaded hole 31 is formed in the circumferential surface of the side cover 3, and a mounting threaded hole 21 is formed in the circumferential surface of the counter weight wheel axle 2. A fixing bolt 22 is arranged between the side cover 3 and the thrust wheel shaft 2, and the fixing bolt 22 is an inner hexagon bolt. When the side cover 3 is connected and fixed with the thrust wheel shaft 2, the side cover 3 is sleeved on the thrust wheel shaft 2, the mounting unthreaded hole 31 and the mounting threaded hole 21 are coaxial, the fixing bolt 22 penetrates through the mounting unthreaded hole 31 and the mounting threaded hole 21, and the fixing bolt 22 is in threaded connection with the thrust wheel shaft 2.

Referring to fig. 3, four mounting grooves 32 are provided on the circumferential surface of the side cover 3 close to the thrust wheel body 1, the four mounting grooves 32 are uniformly arranged along the circumferential direction of the side cover 3, a connection structure 4 is provided in each mounting groove 32, and each connection structure 4 includes a fixture block 41, a spring 42 and a sliding block 43. One end of the spring 42 is welded and fixed with the bottom surface of the clamping groove 15, and the other end of the spring 42 is welded and fixed with the clamping block 41. Through grooves 33 are correspondingly formed in the outer wall, close to each mounting groove 32, of the side cover 3, the through grooves 33 are communicated with the mounting grooves 32, the sliding block 43 is located in the through grooves 33, and one end, close to the mounting groove 32, of the sliding block 43 is welded and fixed to the side wall, close to the spring 42, of the fixture block 41. The sliding block 43 is provided with a plurality of anti-slip ribs 431 on the end face away from the clamping block 41, the cross section of each anti-slip rib 431 is semicircular, and the anti-slip ribs 431 are evenly distributed along the length direction of the sliding block 43.

Referring to fig. 3 and 4, the two axial end faces of the thrust wheel body 1 are both provided with circular connecting grooves 12, and the circumferential inner wall of each connecting groove 12 is provided with a clamping groove 15 matched with each clamping block 41. When the side cover 3 and the thrust wheel body 1 are fixedly connected, the latch 41 is positioned in the latch groove 15. In order to facilitate the installation of the side cover 3 and the thrust wheel body 1, one surface of the latch 41 close to the slot 15 is an inclined surface 411, and the inclined surface 411 is arranged obliquely upwards along the direction far away from the thrust wheel body 1.

Referring to fig. 3 and 4, in order to improve the stability of the connection between the weight wheel body 1 and the side cover 3, an elastic pad 34 is bonded and fixed to one surface of the side cover 3 close to the weight wheel body 1, and the elastic pad 34 is made of rubber. A plurality of anti-slip grooves 14 are formed in the bottom surface of the connecting groove 12, and the anti-slip grooves 14 are uniformly arranged along the circumferential direction of the connecting groove 12. When the side cover 3 is mounted on the thrust wheel body 1, the elastic pad 34 is located in the connecting groove 12, and the elastic pad 34 abuts against and is attached to the thrust wheel body 1.

Referring to fig. 3 and 4, the thrust wheel body 1 is provided with a mounting hole 11 along the axis direction thereof, and the thrust wheel shaft 2 is inserted into the mounting hole 11. The edge of the axial end face of the thrust wheel body 1 close to the mounting hole 11 is provided with a sealing groove 13, a sealing ring 131 is mounted in the sealing groove 13, one face of the side cover 3 close to the sealing groove 13 is integrally formed with a retaining ring 35, the diameter of the retaining ring 35 is the same as that of the sealing ring 131, and the retaining ring and the sealing ring 131 share the same axis. When the side cover 3 is mounted on the thrust wheel body 1, the retainer ring 35 abuts against the seal ring 131 to improve the sealing effect.

The implementation principle of the thrust wheel of the crawler crane in the embodiment of the application is as follows: when the staff is carrying out the installation of thrust wheel, wear to establish thrust wheel axle 2 in the thrust wheel body 1, afterwards, establish side cap 3 cover on thrust wheel axle 2, the staff rethread manual movement sliding block 43 moves fixture block 41 to mounting groove 32 in, places the laminating of side cap 3 in connecting groove 12 department again to make draw-in groove 15 and fixture block 41 align. The worker releases the pressure applied to the slider 43, and then the latch 41 moves toward the outside of the mounting groove 32 by the elastic force of the spring 42, so that the latch 41 is inserted into the latch groove 15, completing the connection of the side cover 3 and the thrust wheel body 1. Then, the worker rotates the bogie shaft 2 to align the mounting unthreaded hole 31 and the mounting threaded hole 21, inserts the fixing bolt 22 from the mounting unthreaded hole 31, and rotates the fixing bolt 22 to complete the mounting and fixing of the bogie shaft 2 and the side cover 3. On the contrary, when carrying out the dismantlement of thrust wheel, take out fixing bolt 22 from installation unthreaded hole 31 and installation screw hole 21 earlier, afterwards, the staff applys external force and stirs sliding block 43 towards the bottom direction of mounting groove 32, sliding block 43 drives in fixture block 41 retraction mounting groove 32, sliding block 43 breaks away from with draw-in groove 15 mutually, later can take off side cap 3 and thrust wheel axle 2 from the thrust wheel body 1, thereby be convenient for the staff to the installation and the dismantlement of thrust wheel body, the maintenance of convenient to thrust wheel body is changed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a crawler crane's thrust wheel, includes thrust wheel body (1), thrust wheel axle (2) and side cap (3), wear to establish in thrust wheel body (1) thrust wheel axle (2), fixed cover of side cap (3) is established on thrust wheel axle (2) is close to the global at thrust wheel body (1) both ends, its characterized in that: the thrust wheel body (1) is provided with a connecting groove (12) on the axial end face, one face of the side cover (3) close to the connecting groove (12) is attached to the bottom face of the connecting groove (12), a connecting structure (4) is arranged between the side cover (3) and the thrust wheel body (1), the connecting structure (4) comprises a plurality of clamping blocks (41) and a plurality of springs (42), a plurality of clamping grooves (15) are formed in the circumferential side wall of the connecting groove (12), a mounting groove (32) is formed in the side wall of the side cover (3) close to the clamping grooves (15), the springs (42) and the clamping blocks (41) are both positioned in the mounting groove (32), one end of each spring (42) is fixedly connected with the bottom of the corresponding mounting groove (32), the other end of each spring (42) is fixedly connected with the corresponding clamping block (41), and one end, far away from the spring (42), of each clamping block (41) is positioned in the corresponding clamping groove (15), side cap (3) and thrust wheel body (1) are connected through fixture block (41) and draw-in groove (15) mutually, a plurality of logical grooves (33) have correspondingly been seted up on the outer wall that side cap (3) are close to each mounting groove (32), each logical groove (33) and mounting groove (32) intercommunication, wear to be equipped with sliding block (43) in logical groove (33), the lateral wall fixed connection that one end that sliding block (43) are close to mounting groove (32) and fixture block (41) are close to spring (42).

2. The track roller of crawler crane according to claim 1, wherein: one surface of the clamping block (41) close to the clamping groove (15) is an inclined surface (411), and the inclined surface (411) is arranged obliquely upwards along the direction far away from the supporting wheel body (1).

3. The track roller of crawler crane according to claim 1, wherein: and a plurality of anti-skidding ribs (431) are fixedly arranged on one end surface of the sliding block (43) far away from the clamping block (41).

4. The track roller of crawler crane according to claim 1, wherein: an elastic pad (34) is fixedly bonded on the end face of the side cover (3) close to the thrust wheel body (1), the elastic pad (34) is positioned in the connecting groove (12), and the elastic pad (34) is abutted and attached to the thrust wheel body (1).

5. The track roller of crawler crane according to claim 4, wherein: a plurality of anti-skidding grooves (14) are formed in the bottom surface of the connecting groove (12), and the anti-skidding grooves (14) are arranged along the circumferential direction of the connecting groove (12).

6. The track roller of crawler crane according to claim 1, wherein: the mounting structure is characterized in that a mounting unthreaded hole (31) is formed in the peripheral surface of the side cover (3), a mounting threaded hole (21) is formed in the peripheral surface of the supporting wheel shaft (2), the mounting unthreaded hole (31) and the mounting threaded hole (21) are coaxial, the mounting unthreaded hole (31) is communicated with the mounting threaded hole (21), a fixing bolt (22) penetrates through the mounting unthreaded hole (31), and one end, close to the supporting wheel shaft (2), of the fixing bolt (22) penetrates through the mounting threaded hole (21) and is in threaded connection with the mounting threaded hole (21).

7. The track roller of crawler crane according to claim 1, wherein: and a wear-resistant layer is fixedly arranged on the peripheral surface of the thrust wheel body (1).

8. The track roller of crawler crane according to claim 1, wherein: the thrust wheel body (1) axial terminal surface is close to the border of thrust wheel axle (2) and has seted up seal groove (13), install sealing washer (131) in seal groove (13), one side that side cover (3) are close to seal groove (13) is fixed and is provided with retaining ring (35), retaining ring (35) and sealing washer (131) looks butt.