CN216918348U - Slider device, crane boom and crane - Google Patents

Abstract

The utility model provides a slider device, a crane boom and a crane, which relate to the technical field of crane booms and are applied to the crane boom, wherein the crane boom comprises two barrel bodies which are sequentially sleeved, the slider device comprises a mounting and positioning structure, a slider body and an elastic part, the mounting and positioning structure is arranged on one barrel body, the slider body and the elastic part are both positioned on one side of the mounting and positioning structure, which faces to the other barrel body, the elastic part is in contact with the slider body, the slider body is suitable for abutting against the other barrel body, and when the gap between the slider body and the other barrel body is larger than a standard value, the elastic part is suitable for elastic deformation to abut against the other barrel body. The sliding block body can not move between the inner cylinder body and the outer cylinder body due to abrasion, can not fall off from a gap between the inner cylinder body and the outer cylinder body, and does not need to be regularly lubricated for maintaining the sliding block body.

Description

Slider device, crane boom and crane

Technical Field

The utility model relates to the technical field of cranes, in particular to a sliding block device, a crane boom and a crane.

Background

In a crane, at present, for most of crane booms, a sliding block is assembled between an inner cylinder body and an outer cylinder body, so that the sliding block is difficult to assemble, and because the sliding block is directly contacted with the outer cylinder body, lubricating oil is required to be regularly sprayed for maintenance to reduce abrasion, so that the maintenance cost is increased. If lubricating oil is pumped irregularly, the sliding block is abraded along with the increase of the using times of the crane boom and the increase of time, and the gap between the sliding block and the outer cylinder body is larger and larger, so that the sliding block moves between the inner cylinder body and the outer cylinder body, and the performance of the crane boom is influenced. More seriously, the slider may be separated from the gap between the inner and outer cylindrical bodies.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one aspect of the above technical problem.

In order to solve the above problems, the present invention provides a slider device, which is applied to a boom, wherein the boom includes two cylinders that are sequentially sleeved, the slider device includes a mounting and positioning structure, a slider body, and an elastic member, the mounting and positioning structure is used for being disposed on one cylinder (for example, an inner cylinder), the slider body and the elastic member are both located on one side of the mounting and positioning structure facing the other cylinder, the elastic member is in contact with the slider body, the slider body is adapted to abut against the other cylinder (for example, an outer cylinder), and when a gap between the slider body and the other cylinder is greater than a calibrated value, the elastic member is adapted to elastically deform to abut against the other cylinder.

Compared with the prior art, the sliding block device provided by the utility model has the following beneficial effects that:

taking the installation and positioning structure for being arranged on the inner cylinder as an example, an access hole can be preset on the outer cylinder of the crane boom, and the access hole is provided with an openable access door, thus, the installation and positioning structure is fixed on the inner cylinder of the crane boom in advance, the sliding block body can enter the outer cylinder through the access hole, then the sliding block body is arranged on one side of the installation and positioning structure facing the outer cylinder, then the access door is closed to compress an elastic part arranged on the sliding block body, meanwhile, the sliding block body is abutted against the outer cylinder, so that the assembly of the sliding block body with higher efficiency is completed, when the sliding block body is worn, namely, if the gap between the sliding block body and the outer cylinder is larger than a standard value, the elastic part is elastically deformed under the self elasticity, the elastic part can still be abutted against the outer cylinder, the original function of the sliding block body is provided by the elastic part, meanwhile, because the elastic part gives the elastic force to the sliding block body, the sliding block body can not move between the inner cylinder and the outer cylinder, the sliding block body can not fall off from the gap between the inner cylinder body and the outer cylinder body, and the sliding block body does not need to be maintained by regularly lubricating oil.

Further, the mounting and positioning structure comprises a mounting plate, and a groove matched with the sliding block body is formed in the mounting plate.

Further, the inner wall of the groove is provided with a positioning protrusion, the outer wall of the sliding block body is provided with a positioning groove matched with the positioning protrusion, or the inner wall of the groove is provided with a positioning groove, and the outer wall of the sliding block body is provided with a positioning protrusion matched with the positioning groove.

Further, the groove extends to one sidewall edge of the mounting plate.

Further, the slider body is towards another the side of barrel is provided with the holding tank, the elastic component set up in the holding tank, when the elastic component is the horizontality, the size of horizontality the elastic component with the size phase-match of holding tank.

Further, when the clearance between the slider body and the other cylinder is smaller than or equal to the calibration value, the elastic piece is in a horizontal state, and when the clearance between the slider body and the other cylinder is larger than the calibration value, the elastic piece is in a bending state.

Further, both ends of the elastic element are slidably connected to the accommodating groove.

Further, the holding tank inner wall has been seted up anticreep groove, anticreep groove's length direction with the length direction of holding tank is unanimous, the both ends of elastic component set up anticreep spare, anticreep spare set up in the anticreep groove, just anticreep spare is suitable for to follow the anticreep groove slides.

In addition, the utility model also provides a crane boom, which comprises two cylinder bodies and the slide block device.

Since the technical improvements of the lift arm and the technical effects obtained are the same as those of the slider device, the technical effects of the lift arm will not be described in detail.

In addition, the utility model also provides a crane, which comprises the crane arm.

Since the technical improvement of the crane and the technical effect obtained are the same as those of the boom, the technical effect of the crane will not be described in detail.

Drawings

Fig. 1 is a schematic configuration diagram of a slider device according to an embodiment of the present invention.

Description of reference numerals:

1-mounting and positioning structure, 11-mounting plate, 12-positioning projection, 2-slider body, 21-positioning groove, 22-receiving groove, 23-oil groove and 3-elastic element.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it is to be understood that the terms "upper", "left", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Also, in the drawings, the Z-axis represents a vertical, i.e., up-down position, and a positive direction of the Z-axis (i.e., an arrow direction of the Z-axis) represents up, and a negative direction of the Z-axis (i.e., a direction opposite to the positive direction of the Z-axis) represents down; in the drawings, the X-axis represents the longitudinal direction, i.e., the front-rear position, and the positive direction of the X-axis (i.e., the arrow direction of the X-axis) represents the front and the negative direction of the X-axis (i.e., the direction opposite to the positive direction of the X-axis) represents the rear; in the drawings, the Y-axis represents the lateral, i.e., left-right, position, and the positive direction of the Y-axis (i.e., the arrow direction of the Y-axis) represents the left, and the negative direction of the Y-axis (i.e., the direction opposite to the positive direction of the Y-axis) represents the right.

It should also be noted that the foregoing Z-axis, X-axis, and Y-axis are meant only to facilitate the description of the utility model and to simplify the description, and are not meant to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model.

Referring to fig. 1, a slider device according to an embodiment of the present invention is applied to a boom, where the boom includes two barrel bodies that are sequentially sleeved, the slider device includes a mounting and positioning structure 1, a slider body 2, and an elastic member 3, the mounting and positioning structure 1 is configured to be disposed on one barrel body (e.g., an inner barrel body), the slider body 2 and the elastic member 3 are both located on a side of the mounting and positioning structure 1 facing the other barrel body, the elastic member 3 is in contact with the slider body 2, the slider body 2 is adapted to abut against the other barrel body (e.g., an outer barrel body), and when a gap between the slider body 2 and the other barrel body is greater than a calibrated value, the elastic member 3 is adapted to elastically deform to abut against the other barrel body.

In this embodiment, taking the installation and positioning structure 1 as an example for being installed on the inner cylinder, an access opening can be preset on the outer cylinder of the boom, and the access opening is provided with an openable access door, so that the installation and positioning structure 1 is fixed on the inner cylinder of the boom in advance, the slider 2 can enter the outer cylinder through the access opening, then the slider 2 is installed on one side of the installation and positioning structure 1 facing the outer cylinder, then the access door is closed to compress the elastic member 3 arranged on the slider 2, meanwhile, the slider 2 abuts against the outer cylinder, so as to complete the assembly of the slider 2 with higher efficiency, when the slider 2 is worn, i.e., if the gap between the slider 2 and the outer cylinder is larger than a standard value, the elastic member 3 elastically deforms under its own elasticity, the elastic member 3 can still abut against the outer cylinder, the elastic member 3 provides the original function of the slider 2, meanwhile, the elastic piece 3 gives the elastic force to the sliding block body 2, so that the sliding block body 2 is ensured not to move between the inner cylinder body and the outer cylinder body and further not to fall off from a gap between the inner cylinder body and the outer cylinder body, and the sliding block body 2 is not required to be maintained and maintained by regularly lubricating oil.

The elastic deformation direction of the elastic element 3 refers to the Z-axis direction, and is also the installation direction of the slider body 2 to the installation positioning structure 1, and after the slider body 2 is installed in the installation positioning structure 1, the slider body 2 cannot move in the X-axis direction and the Y-axis direction.

Referring to fig. 1, optionally, the mounting and positioning structure includes a mounting plate 11, and a groove matched with the slider body 2 is formed on the mounting plate 11.

Here, the recess is used for installing the slider body 2, and the slider body 2 can be adorned the recess in the Z axle direction, so, realizes the restriction of slider body 2 in X axle direction and Y axle direction, and the installation is also convenient.

Optionally, the recess runs through the thickness direction (Z axle direction) of mounting panel 11, so, the slider body 2 installs the barrel in the butt behind the recess, just also the slider body 2 keeps away from the barrel in the butt of one side of elastic component 3, so, can improve the integration level between the barrel also outer barrel in the barrel, need not remain more clearance between barrel and the outer barrel including.

Wherein, the mounting panel 11 can be welded at the big arm afterbody of inner tube body, the size of mounting panel 11, the width of slider body 2, the mounted position of mounting panel 11 at big arm afterbody, and the leg height, the welding seam length, welding seam interval isoparametric depend on the barrel width, can adapt to the adjustment according to actual conditions. Can avoid welding barrel and mounting panel 11 to warp like this, can avoid welding stress too big again, increased the effective area of contact of barrel with the slider body 2 again simultaneously, the jib loading boom is flexible more steady, and the improvement is used and is experienced the effect.

Referring to fig. 1, the recess optionally extends to one sidewall edge of the mounting plate 11.

Here, the recess extends through to the right side edge of the mounting plate, i.e. the right side of the recess is open, so that the mounting plate forms a C-shaped frame, which also facilitates carrying, transport, etc. of the mounting plate 11.

On the other hand, the right end of the slider body 2 extends out of the groove, so that the slider body 2 is convenient to take and place.

Referring to fig. 1, optionally, the inner wall of the groove is provided with a positioning protrusion 12, and the outer wall of the slider body 2 is provided with a positioning groove 21 matched with the positioning protrusion 12, or the inner wall of the groove is provided with a positioning groove 21, and the outer wall of the slider body 2 is provided with a positioning protrusion 12 matched with the positioning groove 21.

Here, if the right side of the groove is opened, in order to avoid the slider body 2 from slipping out from the right side of the groove, by the cooperation of the positioning projections 12 and the positioning grooves 21, the slider body 2 is thus restricted from moving in the front-rear direction, the left-right direction.

Of course, even if the right side of the groove is not opened, the positioning protrusion 12 and the positioning groove 21 can be provided to further achieve the positioning effect.

Referring to fig. 1, optionally, an accommodating groove 22 is formed in a side of the slider body 2 away from the inner cylinder, the elastic element 3 is disposed in the accommodating groove 22, and when the elastic element 3 is in a horizontal state, the size of the elastic element 3 in the horizontal state matches the size of the accommodating groove 22.

Here, offer holding tank 22 on the slider body 2, like this, when the slider body 2 does not wear and tear, the slider body 2 does not have gapped before the outer barrel, and at this moment the elastic component 3 is accomodate in holding tank 22 by full compression and is the horizontality, so, further reduce the clearance requirement between interior barrel and the outer barrel.

Referring to fig. 1, optionally, the elastic member 3 is naturally bent, and when there is no gap between the slider body 2 and the outer cylinder, the elastic member 3 is accommodated in the accommodating groove in a straight strip structure.

It should be noted that the natural state of the elastic member 3 means that the elastic member 3 is not subjected to an external force, for example, when the slider body 2 is not mounted in the outer cylinder, the elastic member 3 is not restricted by the outer cylinder in the Z-axis, and is in a bent state, i.e., a natural state. After the slider body 2 is mounted between the inner and outer cylinders, the slider body 2 abuts against the outer cylinder (when there is no wear), and at this time the elastic member 3 is restricted by the outer cylinder to be completely compressed in the accommodating groove 22 and to be in a horizontal state, and after the slider body 2 is worn and has a gap with the outer cylinder, the elastic member 3 is bent, and a part thereof protrudes out of the accommodating groove 22 and abuts against the outer cylinder. In this embodiment, even if the slider body 2 is worn, the elastic member 3 is partially in the receiving groove 22, further reducing the gap requirement between the inner cylinder and the outer cylinder. Meanwhile, the elastic part 3 is designed in such a shape that the space occupation in the Z axis is reduced as much as possible.

Alternatively, both ends of the elastic member 3 are slidably connected to the receiving groove 22.

Here, the ends of the elastic member 3 are slidably coupled to the receiving grooves 22, ensuring that the elastic member 3 is not separated from the slider body 2. It can be understood that when the elastic member 3 is compressed from the natural state, i.e. when the bending state is gradually changed to the horizontal state, the two ends of the elastic member 3 move back to each other along the receiving groove 22, and conversely, when the elastic member 3 returns to the bending state in the natural state, the two ends of the elastic member 3 move relative to each other.

Optionally, an anti-slip groove (not shown) is formed in the inner wall of the accommodating groove 22, the length direction of the anti-slip groove is consistent with the length direction of the accommodating groove 22, anti-slip parts (not shown) are arranged at two ends of the elastic part 3, the anti-slip parts are arranged in the anti-slip groove, and the anti-slip parts are suitable for sliding along the anti-slip groove.

Here, the both ends of the elastic member 3 are slidably connected to the receiving grooves 22 by the movement of the escape prevention member in the escape prevention groove, the structure is simple, and the escape prevention groove restricts the escape prevention member from moving in the Z-axis direction, thereby ensuring that the elastic member 3 is not separated from the slider body 2.

Referring to fig. 1, alternatively, a plurality of elastic members 3 are disposed at intervals on the slider body 2, and the arrangement direction of the plurality of elastic members 3 is perpendicular to the relative movement direction of the inner cylinder and the outer cylinder.

Here, the direction of interior barrel and outer barrel relative motion is the fore-and-aft direction, so, through arranging a plurality of elastic component 3 in the left and right sides orientation at the slider body 2, at slider body 2 wearing and tearing, also if the slider body 2 is greater than the calibration value with the clearance of outer barrel, a plurality of elastic component 3 can the outer barrel of butt simultaneously, and the supporting effect is better.

Wherein, the 3 materials of elastic component can be steel matter, and one is that steel matter wearability is higher, and two is that steel matter intensity is enough.

Wherein, the mounting and positioning structure 1 can be welded on the inner cylinder in advance.

Referring to fig. 1, optionally, a plurality of oil grooves 23 are further disposed on one side of the slider body 2 facing the other cylinder (outer cylinder), and the length direction of the oil grooves 23 is perpendicular to the direction in which the two cylinders slide relatively.

Here, the slider body material can be PA6, and there are a lot of oil grooves on the front, and when the slider device was installed, on slider body 2 front (towards the one side of outer barrel) play lubricating oil, partial lubricating oil is stored in oil groove 23, and lubricating oil only scribbles when the slider device first assembly is at lorry crane, completion assembly that can be better, owing to the existence of the elastic component 3 that sets up, even slider body 2 wears out, also need not regularly to tear the arm and play lubricating oil or change slider body 2.

In addition, the utility model also provides a crane arm, which comprises the slide block device.

Since the technical improvements of the lift arm and the technical effects obtained are the same as those of the slider device, the technical effects of the lift arm will not be described in detail.

In addition, the embodiment of the utility model also provides a crane, which comprises two cylinder bodies and the crane arm, wherein the two cylinder bodies are sequentially sleeved with each other.

Since the technical improvement of the crane and the technical effects obtained are the same as those of the boom, the technical effects of the crane will not be described in detail.

The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as a "first" may explicitly or implicitly include at least one of the feature.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims (10)

1. The slider device is applied to a crane boom, the crane boom comprises two barrel bodies which are sequentially sleeved, and the slider device is characterized by comprising an installation positioning structure (1), a slider body (2) and an elastic part (3), wherein the installation positioning structure (1) is used for being arranged on one barrel body, the slider body (2) and the elastic part (3) are both positioned on one side, facing the other barrel body, of the installation positioning structure (1), the elastic part (3) is in contact with the slider body (2), the slider body (2) is suitable for being abutted against the other barrel body, and when the gap between the slider body (2) and the other barrel body is larger than a calibration value, the elastic part (3) is suitable for being elastically deformed to be abutted against the other barrel body.

2. The slider device according to claim 1, wherein the mounting and positioning structure comprises a mounting plate (11), and the mounting plate (11) is provided with a groove matching with the slider body (2).

3. Slider device according to claim 2, characterised in that the inner walls of the grooves are provided with positioning protrusions (12) and the outer walls of the slider body (2) are provided with positioning grooves (21) matching the positioning protrusions (12), or that the inner walls of the grooves are provided with positioning grooves (21) and the outer walls of the slider body (2) are provided with positioning protrusions (12) matching the positioning grooves (21).

4. Slider device according to claim 2, characterised in that the recess extends to one side wall edge of the mounting plate (11).

5. A slider device according to claim 1, wherein the slider body (2) is provided with a receiving groove (22) toward the side of the other cylinder, and the elastic member (3) is disposed in the receiving groove (22), and when the elastic member (3) is in a horizontal state, the size of the elastic member (3) in the horizontal state matches the size of the receiving groove (22).

6. Slider device according to claim 5, characterised in that the elastic element (3) assumes a horizontal state when the clearance between the slider body (2) and the other cylinder is less than or equal to the nominal value, and the elastic element (3) assumes a curved state when the clearance between the slider body (2) and the other cylinder is greater than the nominal value.

7. Slider device according to claim 6, characterised in that the elastic element (3) is connected with both ends thereof slidingly to said housing groove (22).

8. The slider device according to claim 7, wherein the inner wall of the receiving groove (22) is formed with a separation-preventing groove, the length direction of the separation-preventing groove is consistent with the length direction of the receiving groove (22), two ends of the elastic member (3) are provided with separation-preventing members, the separation-preventing members are arranged in the separation-preventing groove, and the separation-preventing members are adapted to slide along the separation-preventing groove.

9. A boom comprising two tubular bodies nested one inside the other and a slider arrangement according to any of claims 1 to 8.

10. A crane comprising a boom as claimed in claim 9.

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