CN212740460U - Novel horizontal wheelset of adjustable wheel base of eccentric formula - Google Patents

Abstract

The utility model provides a novel horizontal wheelset of adjustable wheel base of eccentric formula, which comprises a fixed frame, the pilot hole has been seted up on the fixed frame, fixed frame is internal to be equipped with a pair of eccentric bearing section of thick bamboo, the annular groove has been seted up on the eccentric bearing section of thick bamboo inner wall, fixed connection can be dismantled through ring flange and fixed frame's top to the upper end of eccentric bearing section of thick bamboo, in the lower extreme assembly recess of eccentric bearing section of thick bamboo, the eccentric hole of main shaft has been seted up to the bottom of eccentric bearing section of thick bamboo, be equipped with the main shaft of vertical setting in the eccentric bearing section of thick bamboo, the bearing top is equipped with the jump ring, the edge joint of going up the jump ring is in the annular groove, the lower extreme of main shaft extends the eccentric hole of main shaft and extends fixed frame. The utility model discloses simple structure can be applicable to the I-steel track of different width, operation convenient to use.

Description

Novel horizontal wheelset of adjustable wheel base of eccentric formula

Technical Field

The utility model belongs to the technical design field of hoisting equipment, especially, relate to a novel horizontal wheelset of adjustable wheel base of eccentric formula.

Background

With the development of economy, the application of the crane in production practice is more and more extensive, the crane refers to a multi-action crane machine for vertically lifting and horizontally carrying heavy objects in a certain range, also called a crown block, a gantry crane and a crane, the crane is divided into a portal crane and a bridge crane, a cart traveling mechanism needs to move forward along an I-shaped steel rail when the crane works, as the span of the crane is too large, the wheel rims of the cart or the trolley contact with the side surfaces of the steel rail in the operation process of the crane, strong abrasion occurs, the phenomenon is called rail gnawing, slight rail gnawing is often ignored by people because the use is not influenced, the load of the crane can be greatly increased by serious rail gnawing, the operation resistance is about three times larger than that of a normal state, the phenomena of motor burnout, transmission shaft twist-off and even derailment occur, and derailment refers to the phenomenon that the wheels of the crane leave the steel rail when the, derailing refers to the falling surface of the wheel of the crane. Aiming at the phenomena of rail gnawing and derailment in hoisting, a horizontal wheel set is generally additionally arranged on a crane cart travelling mechanism or a trolley travelling mechanism, the existing horizontal wheel set is often complex in structure, different horizontal wheel sets are required to be arranged according to I-steel rails of different models, production is difficult for manufacturers, large-batch production cannot be realized, and the construction site is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel eccentric wheel group with adjustable wheel track for solving the technical problems that the existing horizontal wheel group has a complex structure and can not be suitable for I-steel rails with different widths, which comprises a rectangular fixed frame, two symmetrical and vertically arranged assembling holes are arranged on the fixed frame, threaded holes are arranged on the fixed frame around the assembling holes at even intervals, fixed holes used for fixing with a crane end beam are arranged at the front end and the rear end of the fixed frame, the fixed frame can be detachably fixed at the end part of the crane end beam through the fixed holes, a circular assembling groove is arranged on the inner bottom plate of the fixed frame, the assembling groove and the assembling hole on the bottom plate of the fixed frame have the same central line, a pair of vertically arranged eccentric bearing cylinders are arranged in the fixed frame, the eccentric bearing cylinders are cylindrical, the top ends of the eccentric bearing cylinders are open, the eccentric bearing barrel is provided with a cylindrical main shaft assembly cavity, the inner wall of the eccentric bearing barrel is provided with an annular groove horizontally arranged, the upper end of the eccentric bearing barrel extends out of the fixed frame and is fixed with a flange plate, the upper end of the eccentric bearing barrel is detachably and fixedly connected with the top end of the fixed frame through the flange plate, the flange plate is provided with a plurality of uniformly distributed mounting holes, the eccentric bearing barrel is rotated during mounting, the position of the main shaft assembly cavity can be adjusted, the lower end of the eccentric bearing barrel can be rotatably assembled in the assembly groove on the bottom plate of the fixed frame, the bottom end of the eccentric bearing barrel is provided with a main shaft eccentric hole, the central line of the main shaft assembly cavity is consistent with the central line of the main shaft eccentric hole, and the central line of the main shaft assembly cavity and the central line of. The eccentric bearing barrel is internally provided with a vertically arranged main shaft, the upper end of the main shaft is provided with external threads, the main shaft below the external threads is assembled in the eccentric bearing barrel through a bearing, the external threads are connected with lock nuts in a threaded manner, the lock nuts are provided with two lock nuts, the lock nuts are prevented from being screwed out, the lock nuts are fixed with the main shaft more firmly, a thrust plate is sleeved between the two lock nuts, the thrust plate prevents nuts from being screwed out, a clamp spring is arranged above the bearing, the lower end face of the upper clamp spring is attached to the upper end face of the bearing, the edge of the upper clamp spring is clamped in an annular groove, the upper clamp spring blocks the upward movement of the bearing, and the normal work of the bearing is guaranteed. The lower end of the main shaft extends out of the main shaft eccentric hole and extends to the lower part of the fixed frame, horizontal wheels are detachably fixed at the lower end of the main shaft, and the two horizontal wheels are respectively arranged on two sides of the I-shaped steel rail.

Preferably, the bearings are at least two, a spacer sleeve is arranged between the two bearings, the spacer sleeve is sleeved on the main shaft, the spacer sleeve plays a role in blocking and limiting, and the two bearings are prevented from being close to each other.

Preferably, the top end of the main shaft is detachably fixed with a shaft head baffle seat through a fixing bolt, the shaft head baffle seat plays a role in blocking, a nut is prevented from withdrawing threads, and the bearing can be prevented from moving up and down.

Preferably, the bottom of the eccentric bearing cylinder is provided with an oil seal, the oil seal is sleeved on the main shaft, the oil seal plays a role in sealing, the outflow of grease playing a role in lubricating in the bearing is prevented, a lower clamp spring is arranged below the oil seal, and the edge of the lower clamp spring is clamped in the eccentric bearing cylinder.

Preferably, the lower baffle groove has been seted up to the lower extreme of horizontal wheel, is equipped with down the baffle in the baffle groove down, and lower baffle plays and stops the effect, and fixed connection can be dismantled through fixing bolt and the bottom of main shaft to lower baffle, through dismantling the lower baffle, can lift the horizontal wheel off from the main shaft, is convenient for change and maintenance.

Preferably, the top end of the eccentric bearing cylinder is detachably fixed with an upper blank cap, the upper blank cap is provided with a grease nipple, grease can be added into the bearing from the grease nipple, and the grease has a lubricating effect.

The scheme has the following advantages:

the eccentric bearing barrels and the main shafts are arranged, the main shafts are assembled in the eccentric bearing barrels, and the distance between the two main shafts can be adjusted by rotating the two eccentric bearing barrels, so that the distance between the two horizontal wheels can be adjusted to be suitable for I-steel rails with different widths; the arrangement of the lock nut, the upper clamp spring and the shaft head baffle seat mainly plays a role in limiting the bearing, and the bearing is prevented from shifting to influence the normal rotation of the main shaft; the arrangement of the oil seal and the lower clamp spring mainly plays a role in sealing grease in the bearing, so that the grease is prevented from flowing out of the lower end of the eccentric bearing barrel; the horizontal wheels are arranged on two sides of the I-shaped steel rail, when the crane is inclined in the walking process, the horizontal wheels are attached to the side wall of the I-shaped steel rail, and the horizontal wheels rotate to avoid rail gnawing in the walking process of the crane.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

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

fig. 3 is a left side view structure diagram of the present invention;

fig. 4 is a schematic top view of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a perspective view of the fixing frame;

FIG. 7 is a schematic structural view of an eccentric bearing cartridge and a flange plate;

FIG. 8 is a perspective view of an eccentric bearing cartridge;

fig. 9 is a schematic top view of the eccentric bearing cartridge.

Reference numerals: 1. a fixed frame; 2. an eccentric bearing cartridge; 3. a main shaft; 4. a horizontal wheel; 5. covering with a blank cap; 6. fixing the bolt; 11. an assembly hole; 12. a fixing hole; 13. a threaded hole; 14. assembling a groove; 21. a spindle assembly chamber; 22. an annular groove; 23. a flange plate; 24. a main shaft eccentric hole; 31. a bearing; 311. a spacer sleeve; 32. locking a nut; 33. a thrust plate; 34. mounting a clamp spring; 35. a lower clamp spring; 36. oil sealing; 37. a shaft head baffle seat; 41. a lower baffle groove; 42. a lower baffle plate; 51. a grease nipple.

Detailed Description

As shown in figures 1-9, a novel eccentric wheel track adjustable horizontal wheel set comprises a rectangular fixed frame 1, two symmetrical and vertically arranged assembling holes 11 are formed in the fixed frame 1, threaded holes 13 are formed in the fixed frame 1 around the assembling holes 11 at even intervals, fixing holes 12 for fixing with a crane end beam are formed in the front end and the rear end of the fixed frame 1, the fixed frame 1 is detachably fixed at the end of the crane end beam through the fixing holes 12, a circular assembling groove 14 is formed in an inner bottom plate of the fixed frame 1, the assembling groove 14 and the assembling holes 11 in the bottom plate of the fixed frame 1 have the same central line, a pair of vertically arranged eccentric bearing cylinders 2 are assembled in the fixed frame 1, the eccentric bearing cylinders 2 are cylindrical, the top ends of the eccentric bearing cylinders 2 are open, a cylindrical spindle assembling cavity 21 is formed in the bearing cylinders 2, the inner wall of the eccentric bearing cylinder 2 is provided with a horizontally arranged annular groove 22, the upper end of the eccentric bearing cylinder 2 extends out of the fixed frame 1, the upper end of the eccentric bearing cylinder 2 is fixed with a flange 23, the upper end of the eccentric bearing cylinder 2 is detachably and fixedly connected with the top end of the fixed frame 1 through the flange 23, the flange 23 is provided with a plurality of uniformly distributed mounting holes, the mounting holes are arranged in one-to-one correspondence with the threaded holes 13 on the fixed frame 1, the eccentric bearing cylinder 2 is rotated during mounting, the position of the main shaft assembly cavity 21 can be adjusted, the lower end of the eccentric bearing cylinder 2 can be rotatably assembled in the assembly groove 14 on the bottom plate of the fixed frame 1, the bottom end of the eccentric bearing cylinder 2 is provided with a main shaft eccentric hole 24, the central line of the main shaft assembly cavity 21 is consistent with the central line of the main shaft eccentric hole 24, and the central line of the main shaft assembly cavity 21 and the central line of the main shaft eccentric hole 24 deviate from the central line of the eccentric bearing cylinder 2. The main shaft 3 of vertical setting is equipped with in the eccentric bearing section of thick bamboo 2, and the upper end of main shaft 3 is equipped with the external screw thread, and main shaft 3 of external screw thread below passes through bearing 31 and assembles in the eccentric bearing section of thick bamboo 2, and threaded connection has the lock mother 32 on the external screw thread, the lock mother 32 sets up two, sets up the auto-lock between two locks mother 32 and prevents that the lock mother 32 from moving back the silk for the lock mother 32 is fixed more firm with main shaft 3, and the cover is equipped with thrust plate 33 between two locks mother 32, and thrust plate 33 has prevented that nut 32 from moving back the silk, and bearing 31 top is equipped with jump ring 34, goes up the lower terminal surface of jump ring 34 and the up end laminating of bearing 31, goes up the edge joint of jump ring 34 in annular groove 22, goes up jump ring 34 and. The lower end of the main shaft 3 extends out of a main shaft eccentric hole 24 and extends to the lower part of the fixed frame 1, the lower end of the main shaft 3 is detachably fixed with horizontal wheels 4, and the two horizontal wheels 4 are respectively arranged on two sides of the I-shaped steel track.

Preferably, the number of the bearings 31 is at least two, a spacer sleeve 311 is arranged between the two bearings 31, the spacer sleeve 311 is sleeved on the main shaft 3, and the spacer sleeve 311 plays a role in blocking and limiting, so that the two bearings 31 are prevented from being close to each other.

Preferably, the top end of the main shaft 3 is detachably fixed with a spindle nose baffle seat 37 through a fixing bolt 6, the spindle nose baffle seat 37 plays a role in blocking, the screw withdrawing of the lock nut 32 is avoided, and the bearing 31 can be prevented from moving up and down.

Preferably, the bottom end of the eccentric bearing barrel 2 is provided with an oil seal 36, the oil seal 36 is sleeved on the main shaft 3, the oil seal 36 plays a role in sealing, grease which plays a role in lubricating in the bearing 31 is prevented from flowing out, a lower clamp spring 35 is arranged below the oil seal 36, and the edge of the lower clamp spring 35 is clamped in the eccentric bearing barrel 2.

Preferably, the lower end of the horizontal wheel 4 is provided with a lower baffle groove 41, a lower baffle 42 is arranged in the lower baffle groove 41, the lower baffle 42 plays a role in blocking, the lower baffle 42 is detachably and fixedly connected with the bottom end of the main shaft 3 through a fixing bolt 6, and the horizontal wheel 4 can be detached from the main shaft 3 by detaching the lower baffle 42, so that the replacement and the maintenance are convenient.

Preferably, the top end of the eccentric bearing cylinder 2 is detachably fixed with an upper blank cap 5, the upper blank cap 5 is provided with a grease nipple 51, grease can be added into the bearing 31 from the grease nipple 51, and the grease has a lubricating effect.

The use process comprises the following steps:

the utility model discloses when using, at first lift fixing bolt 6 on the ring flange 23 off, hold a section of thick bamboo 2 through rotatory eccentric shaft, adjust the distance between two main shafts 3 to the biggest, then can dismantle the tip of fixing at hoist end beam with fixed frame 1 through fixing bolt 6, make two level wheels 4 be located the orbital both sides of I-steel respectively, treat fixed frame 1 fixed firm back, hold a section of thick bamboo 2 through rotatory eccentric shaft, adjust the distance between two main shafts 3, make two level wheels 4 draw close each other, level wheel 4's roller edge and the laminating of I-steel track, can dismantle fixed connection with ring flange 23 and fixed frame 1 with fixing bolt 6 at last.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims (8)

1. The utility model provides a novel horizontal wheelset of adjustable wheel base of eccentric formula, includes the fixed frame who is the rectangle, sets up the pilot hole of two symmetries and vertical settings on the fixed frame, and the fixed orifices that is used for with hoist end beam fixed is all offered at both ends around the fixed frame, has seted up circular shape assembly recess on the inside bottom plate of fixed frame, and the pilot hole on assembly recess and the fixed frame bottom plate has same central line, its characterized in that: a pair of vertically arranged eccentric bearing barrels are assembled in the fixed frame, the top end of the eccentric bearing barrel is opened, the inner wall of the eccentric bearing barrel is provided with a horizontally arranged annular groove, the upper end of the eccentric bearing barrel extends out of the fixed frame, the upper end of the eccentric bearing barrel is detachably and fixedly connected with the top end of the fixed frame through a flange plate, the lower end of the eccentric bearing barrel is rotatably assembled in the assembly groove on the bottom plate of the fixed frame, the bottom end of the eccentric bearing barrel is provided with a main shaft eccentric hole, a vertically arranged main shaft is arranged in the eccentric bearing barrel, the upper end of the main shaft is provided with an external thread, the main shaft below the external thread is assembled in the eccentric bearing barrel through a bearing, the external thread is in threaded connection with a lock nut, an upper clamp spring is arranged above the bearing, the edge of the upper clamp spring is clamped in the annular groove, the lower end of the main, the two horizontal wheels are respectively arranged on two sides of the I-shaped steel rail.

2. The novel eccentric horizontal wheel set with adjustable track according to claim 1, wherein: the eccentric bearing cylinder is provided with a cylindrical main shaft assembly cavity, the center line of the main shaft assembly cavity is consistent with the center line of the main shaft eccentric hole, and the center line of the main shaft assembly cavity and the center line of the main shaft eccentric hole deviate from the center line of the eccentric bearing cylinder.

3. The novel eccentric horizontal wheel set with adjustable track according to claim 2, wherein: the two locking nuts are arranged, and a thrust plate is sleeved between the two locking nuts.

4. The novel eccentric horizontal wheel set with adjustable track according to claim 3, wherein: the bearing sets up two at least, and is equipped with the spacer sleeve between two bearings, and the spacer sleeve cover is established on the main shaft.

5. The novel eccentric horizontal wheel set with adjustable track according to claim 4, wherein: the top end of the main shaft is detachably fixed with a shaft head baffle seat through a fixing bolt.

6. The novel eccentric horizontal wheel set with adjustable track according to claim 5, wherein: the bottom of the eccentric bearing cylinder is provided with an oil seal, the oil seal is sleeved on the main shaft, a lower clamp spring is arranged below the oil seal, and the edge of the lower clamp spring is clamped in the eccentric bearing cylinder.

7. The novel eccentric horizontal wheel set with adjustable track as claimed in claim 6, wherein: the lower end of the horizontal wheel is provided with a lower baffle groove, a lower baffle is arranged in the lower baffle groove, and the lower baffle is detachably and fixedly connected with the bottom end of the main shaft through a fixing bolt.

8. The novel eccentric horizontal wheel set with adjustable track as claimed in claim 7, wherein: an upper blank cap is detachably fixed at the top end of the eccentric bearing cylinder, and a grease nipple is arranged on the upper blank cap.

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