CN211115813U

CN211115813U - Novel rotary drilling rig mast turntable assembly

Info

Publication number: CN211115813U
Application number: CN201922383762.5U
Authority: CN
Inventors: 李源; 黎起富; 滕召金; 刘文彬
Original assignee: CHTC Jove Heavy Industry Co Ltd
Current assignee: CHTC Jove Heavy Industry Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-07-28
Anticipated expiration: 2029-12-26

Abstract

The utility model provides a novel dig rig mast carousel subassembly soon, including the turntable body, the center pin, the contact plate, baffle and clamp plate, the center pin is worn to establish between the mast body and the turntable body, the clamp plate will be changeed the edge of disk body and push down and make the turntable body lean on being linked together with the mast body, the contact plate clamp is established between turntable body and the mast body, the baffle clamp is established between clamp plate and the turntable body, the baffle is used for making the turntable body and mast body not direct contact with the contact plate, the intensity of baffle and contact plate sets up to being less than the intensity of turntable body and mast body, when making the mast body and the turntable body take place relative rotation, mainly the two sides of baffle and contact plate take place wearing and tearing, thereby the life of extension mast body and turntable body. The utility model discloses in, the center pin sets to the step shaft structure, and is provided with the disassembly hole on the mast body, need not separate center pin and turntable body, only need through the disassembly hole strike the thin end of center pin alright follow the mast body with the center pin together with the turntable body and separate, simple and convenient.

Description

Novel rotary drilling rig mast turntable assembly

Technical Field

The utility model belongs to the technical field of piling machinery and specifically relates to a novel dig rig mast carousel subassembly soon.

Background

With the great investment of the country in one-road construction, western development, water conservation foundation construction, bridge erection and railway construction, the demand of engineering machinery is continuously increased. The rotary drilling rig is used as a construction machine for quickly taking soil, forming holes and pouring piles, has the advantages of high hole forming efficiency, adaptability to various soil layers, energy conservation, environmental protection, flexibility, multiple function combinations and the like, and is widely applied to various pile-forming foundation engineering such as municipal construction, water conservation foundation construction, bridge erection, railway construction, high-rise buildings and the like.

The mast turntable device is one of important parts of a rotary excavating machine structural member and is a hinge point for realizing mast erection, verticality adjustment and stable construction control. It bears high load and high strength test in working. The mast turntable device can also be a hinge point device with a mast body connected with a connecting body in the amplitude changing mechanism, the mast can vertically lift and swing through a rotating shaft in the turntable device perpendicular to the mast and can adjust the vertical swing left and right, and the verticality requirement of a drill hole can be ensured through adjusting the vertical swing left and right in the work process. Because the mast is highly loaded, the hinge point must have high strength, resistance to high shear forces, flexibility, and wear resistance when swinging left and right to adjust for sag.

As shown in figures 1 and 2, the existing rotary table 11 is of a circular structure and is fixed on a mast body 12 through a pressing plate 13 and a bolt 15, the mast body rotates circularly relative to the rotary table, an articulated sleeve 14 is welded on the rotary table 11 through a rib plate 16 and is articulated with a luffing mechanism connector, all radial forces borne by the mast of the device act on the rotary table, when the rotary table is arranged on a large machine type or the working condition is complex, the rotary table is easy to wear, the welding point of the rib plate connected with the articulated sleeve is easy to cause fatigue crack of a welding line and deformation of the rotary table, the mast is positioned inaccurately, and the large safety accidents such as falling of the bolt, falling of the mast and the like are more likely to happen.

In order to solve the problems of tensile crack of a welding rib plate, deformation of a rotary table and the like, a plurality of companies begin to use a center through shaft type rotary table device, but the center through shaft type rotary table device used in the market at present has the problems of difficulty in disassembly and assembly, difficulty in wear and replacement of the rotary table and the like.

In order to solve the problems, a rotary drilling rig needs to provide a novel mast turntable device which is stable, reliable and convenient to disassemble and assemble.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel dig rig mast carousel subassembly soon to solve the problem that proposes in the background art.

The utility model provides a novel dig rig mast carousel subassembly soon, includes rotary table body, center pin, contact plate and clamp plate subassembly, the center pin is worn to establish between the mast body and rotary table body, and the mast body can take place relative rotation as the center with rotary table body center pin, the clamp plate subassembly sets up on the mast body, and the clamp plate subassembly is used for pushing down the bedplate edge of rotary table body and makes rotary table body and mast body lean on being connected together, and the clamp plate subassembly still is used for when the mast body takes place relative rotation with rotary table body, prevents rotary table body and mast body disconnection, the contact plate clamp is established between the first of the interface of rotary table body and the second of the interface of mast body and contact plate detachable fixes on the first of the interface of rotary table body or on the second of the interface of mast body, and the contact plate is used for making the first of the interface not directly contact with the second of the interface, and the intensity of contact plate is less than the first of the interface with the second of the interface or the intensity of the When the mast body and the turntable body rotate relatively, two surfaces of the contact plate are worn, so that the wear of the first abutting surface and the second abutting surface is reduced, and the service life of the mast body and the turntable body is prolonged.

Further, the pressing plate component comprises a pressing plate seat and a pressing plate, the pressing plate seat is fixed on the mast body, the pressing plate is fixed on the pressing plate seat through bolts and presses the edge of the seat plate of the turntable body, the pressing plate seat comprises an upper pressing plate seat, a left pressing plate seat and a right pressing plate seat which are respectively located on the periphery of the upper side, the left side and the right side of the turntable body, and the pressing plate is also respectively three blocks which are respectively pressed on the upper edge, the left edge and the right edge of the seat plate of the turntable body.

Furthermore, the central shaft is of a stepped shaft structure with one thick end and one thin end, a first shaft sleeve for sleeving the thin end of the central shaft is arranged on the mast body, a second shaft sleeve for sleeving the thick end of the central shaft is arranged on the turntable body, and the size of an inner hole of the first shaft sleeve is smaller than that of the thick end of the central shaft, so that the thick end of the central shaft cannot pass through the inner hole of the first shaft sleeve, and the central shaft is prevented from axially moving in the direction close to the mast body.

Furthermore, the mast turntable assembly further comprises an end cover, the end cover is arranged at one end, far away from the mast body, of the shaft sleeve II, and the end cover is used for axially limiting the central shaft, so that the central shaft is prevented from axially moving in the direction far away from the mast body, the thin end of the central shaft is prevented from being separated from the shaft sleeve I, and the reliability of connection between the turntable body and the mast body is guaranteed.

Furthermore, a dismounting hole aligned with the thin end of the central shaft is formed in one side, away from the shaft sleeve II, of the mast body, and after the pressing block assembly is dismounted, the central shaft can be knocked through the dismounting hole to detach the central shaft and the turntable body from the mast body.

Furthermore, the butt end of the center shaft is arranged in a second shaft sleeve in a penetrating mode through a bearing, namely the center shaft is sleeved with the bearing inner ring, and the second shaft sleeve is sleeved with the bearing outer ring.

Furthermore, the contact plate includes upper contact plate, left contact plate and right contact plate that set up respectively at upper platen seat, left platen seat and right platen seat inboard, and upper contact plate, left contact plate and right contact plate mutually contactless.

Furthermore, the position that the carousel body bedplate corresponds upper contact plate, left contact plate and right contact plate is provided with the oil storage tank, and the oil storage tank is used for saving lubricating grease to reduce the wearing and tearing of carousel body and contact plate.

Furthermore, the mast turntable assembly further comprises a partition plate, the pressure plate indirectly presses the edge of the turntable body seat plate through the partition plate, the partition plate is clamped between the pressure plate and the third abutting surface of the turntable body, and the strength of the partition plate is smaller than that of a plate body where the third abutting surface of the turntable body is located and that of the pressure plate, so that when the mast body and the turntable body rotate relatively, two surfaces of the partition plate are mainly abraded, abrasion between the pressure plate and the third abutting surface is reduced, and the service lives of the turntable body and the pressure plate are prolonged.

The utility model discloses following beneficial effect has at least:

the utility model provides a novel dig rig mast carousel subassembly soon, including the turntable body, the center pin, contact plate and clamp plate subassembly, the contact plate clamp is established between turntable body and the mast body, and the material intensity of contact plate is less than turntable body and mast body material intensity or is carburized intensive treatment to the surface of turntable body and mast body and contact plate direct contact, when making the mast body and the turntable body take place relative rotation, mainly the two sides of contact plate take place wearing and tearing, thereby reduce the wearing and tearing of turntable body and mast body, the contact plate adopts the detachable mode to fix on the mast body or turntable body bottom plate, when wearing and tearing are more, only need to change the contact plate can, and need not change turntable body and mast body, the extension is changeed the life of turntable body and mast body, help guaranteeing the accent of mast and hang down and become the width of cloth precision, and practice thrift the cost.

The utility model discloses a mast carousel subassembly also presss from both sides between clamp plate and the turntable body and is equipped with the baffle, and baffle intensity is less than the clamp plate and is carburized with turntable body or clamp plate and turntable body and baffle direct contact's surface and strengthen the processing, can reduce the wearing and tearing of clamp plate and turntable body, and the change frequency of reducible clamp plate prolongs the life of turntable body.

The utility model discloses in, the center pin for connecting the mast body and the turntable body sets to the step shaft structure, and the butt of center pin has the end cover, the shaft shoulder of end cover cooperation center pin carries out axial positioning to the center pin, can effectually guarantee the position accuracy between the mast body and the turntable body, the mast body corresponds the thin end of center pin and is provided with the disassembly hole, demolish behind the briquetting subassembly, can strike the thin end of center pin through the disassembly hole and detach the center pin from the mast body together with the turntable body, and need not separate center pin and turntable body, and is simple and convenient.

The utility model discloses in, be provided with the bearing between center pin and the carousel body for relative rotation between the mast body and the carousel body can be more freely.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a front view of a prior art mast slewing ring;

FIG. 2 is a left side view of a prior art mast slewing ring;

FIG. 3 is a front view of the mast slewing assembly of the preferred embodiment of the invention;

figure 4 is a view a-a of figure 3 according to the present invention;

FIG. 5 is a front view of the mast body of the preferred embodiment of the invention;

fig. 6 is a front view of the turntable body according to the preferred embodiment of the present invention.

In FIGS. 1 to 2: 11-turntable, 12-mast body, 13-pressing plate, 14-hinged sleeve, 15-bolt and 16-ribbed plate.

In fig. 3 to 6: 21-turntable body, 210-seat plate, 211-first abutting surface, 212-second shaft sleeve, 213-end cover, 214-bearing, 215-oil storage tank, 216-third abutting surface, 22-central shaft, 23-contact plate, 231-upper contact plate, 232-left contact plate, 233-right contact plate, 24-pressure plate component, 240-pressure plate seat, 241-upper pressure plate seat, 242-left pressure plate seat, 243-right pressure plate seat, 244-pressure plate, 25-mast body, 251-second abutting surface, 252-first shaft sleeve, 253-dismounting hole, 26-partition plate and 27-hinge sleeve.

Detailed Description

The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.

Referring to fig. 1-2, a novel rotary drilling rig mast turntable assembly comprises a turntable body 21, a central shaft 22, a contact plate 23, a pressing plate assembly 24 and a hinge sleeve 27, wherein the central shaft is arranged between a mast body 25 and the turntable body in a penetrating manner, the mast body and the turntable body can rotate relatively around the central shaft, the pressing plate assembly is arranged on the mast body and is used for pressing the edge of a base plate 210 of the turntable body to enable the turntable body and the mast body to be connected together, the pressing plate assembly is also used for preventing the turntable body and the mast body from being disconnected when the mast body and the turntable body rotate relatively, the contact plate is clamped between a first abutment surface 211 of the turntable body and a second abutment surface 251 of the mast body, the contact plate is detachably fixed on the first abutment surface of the turntable body or the second abutment surface of the mast body, and is used for enabling the first abutment surface not to be directly contacted with the second abutment surface, and the strength of the contact plate is less than that of the first abutting surface and the second abutting surface, so that when the mast body and the turntable body rotate relatively, two surfaces of the contact plate are worn, the wear of the first abutting surface and the second abutting surface is reduced, and the service lives of the mast body and the turntable body are prolonged.

In order to enable the strength of the first abutting surface and the second abutting surface to be larger than that of the contact plate, the first abutting surface and the second abutting surface can be subjected to carburizing treatment, so that the hardness of the first abutting surface and the second abutting surface is enhanced, and the wear resistance of the first abutting surface and the second abutting surface is enhanced.

In this embodiment, a hinge sleeve 27 for connecting the mast luffing mechanism is arranged in the lower part of the turntable body.

In this embodiment, the pressing plate assembly 24 includes a pressing plate seat 240 and a pressing plate 244, the pressing plate seat is fixed on the mast body, the pressing plate is fixed on the pressing plate seat by bolts and presses the seat plate edge of the turntable body, the pressing plate seat includes an upper pressing plate seat 241, a left pressing plate seat 242 and a right pressing plate seat 243 respectively located on the upper, left and right peripheries of the turntable body, the pressing plate is also three blocks respectively pressed on the upper edge, left edge and right edge of the seat plate of the turntable body, and the three pressing plates are respectively detachably mounted on the upper pressing plate seat 241, left pressing plate seat 242 and right pressing plate seat 243 by bolts.

In this embodiment, the central shaft is configured as a stepped shaft structure with a thick end and a thin end, the mast body is provided with a first shaft sleeve 252 for sleeving the thin end of the central shaft, the turntable body is provided with a second shaft sleeve 212 for sleeving the thick end of the central shaft, and the size of an inner hole of the first shaft sleeve is smaller than that of the thick end of the central shaft, so that the thick end of the central shaft cannot pass through the inner hole of the first shaft sleeve, and the central shaft is prevented from moving axially in a direction close to the mast body.

In this embodiment, the mast turntable assembly further includes an end cover 213, the end cover is disposed at one end of the second shaft sleeve far away from the mast body, and the end cover is configured to axially limit the central shaft, so as to prevent the central shaft from axially moving in a direction far away from the mast body, and prevent the central shaft from coming off from the first shaft sleeve, thereby ensuring the reliability of connection between the turntable body and the mast body.

Referring to fig. 4, in this embodiment, a detaching hole 253 aligned with the thin end of the central shaft is formed on the side of the mast body facing away from the second shaft sleeve, and after the pressing block assembly is removed, the thin end of the central shaft can be knocked through the detaching hole to detach the central shaft from the mast body together with the turntable body.

In this embodiment, the thick end of the central shaft is inserted into the second shaft sleeve through the bearing 214, that is, the central shaft is tightly sleeved with the inner ring of the bearing, the second shaft sleeve is tightly sleeved with the outer ring of the bearing, and the bearing 214 is arranged, so that the central shaft and the turntable body can also flexibly rotate relatively, and the rotational flexibility of the mast body in the verticality adjusting process can be increased.

In this embodiment, the contact plate includes an upper contact plate 231, a left contact plate 232 and a right contact plate 233 respectively disposed on the inner sides of the upper platen base, the left platen base and the right platen base, and the upper contact plate, the left contact plate and the right contact plate are not in contact with each other and have plate areas of 1/4-1/2 about an abutting surface one 211 of the turntable body.

In this embodiment, the tray body seat plate is provided with oil storage tanks 215 corresponding to the upper contact plate, the left contact plate and the right contact plate, and the oil storage tanks are used for storing lubricating grease so as to reduce the wear of the tray body and the contact plates.

Referring to fig. 4, in the embodiment, the mast turntable assembly further includes a partition 26, the pressure plate indirectly presses the edge of the turntable base plate through the partition, the partition is clamped between the pressure plate and the third abutting surface 216 of the turntable body, and the strength of the partition is smaller than the strength of the plate body where the third abutting surface of the turntable body is located and the strength of the pressure plate, specifically, the abutting surface 216 and the surface of the pressure plate contacting the partition can be carburized, so as to increase the hardness and the wear resistance, so that when the mast body and the turntable body rotate relatively, two surfaces of the partition are mainly worn, so as to reduce the wear of the pressure plate and the third abutting surface, and prolong the service life of the turntable body and the pressure plate.

In this embodiment, the number of the partition boards is three, and the three partition boards are respectively arranged at the upper edge, the left edge and the right edge of the seat board of the turntable body.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel rotary drilling rig mast turntable component is characterized by comprising a turntable body (21), a central shaft (22), a contact plate (23) and a pressure plate component (24), wherein the central shaft penetrates through a position between a mast body (25) and the turntable body, the mast body and the turntable body can rotate relatively by taking the central shaft as the center, the pressure plate component is arranged on the mast body and used for pressing the edge of a seat plate (210) of the turntable body to enable the turntable body and the mast body to be connected together in an abutting mode, the pressure plate component is also used for preventing the turntable body and the mast body from being disconnected when the mast body and the turntable body rotate relatively, the contact plate is clamped between a first abutting surface (211) of the turntable body and a second abutting surface (251) of the mast body, the contact plate is detachably fixed on the first abutting surface of the turntable body or the second abutting surface of the mast body, and is used for enabling the first abutting surface to be not in direct contact with the second abutting surface, and the strength of the contact plate is set to be smaller than that of the first abutting surface and the second abutting surface, so that when the mast body and the turntable body rotate relatively, two surfaces of the contact plate are worn, the wear of the first abutting surface and the second abutting surface is reduced, and the service lives of the mast body and the turntable body are prolonged.

2. The novel mast turntable assembly of the rotary drilling rig according to claim 1, wherein the pressing plate assembly (24) comprises a pressing plate seat (240) and a pressing plate (244), the pressing plate seat is fixed on the mast body, the pressing plate is fixed on the pressing plate seat by bolts and presses the seat plate edge of the turntable body, the pressing plate seat comprises an upper pressing plate seat (241), a left pressing plate seat (242) and a right pressing plate seat (243) which are respectively arranged on the upper periphery, the left periphery and the right periphery of the turntable body, and the pressing plate is also three which are respectively pressed on the upper edge, the left edge and the right edge of the seat plate of the turntable body.

3. The novel mast turntable assembly of the rotary drilling rig as claimed in claim 1, wherein the central shaft is provided with a stepped shaft structure with a thick end and a thin end, the mast body is provided with a first shaft sleeve (252) for sleeving the thin end of the central shaft, the turntable body is provided with a second shaft sleeve (212) for sleeving the thick end of the central shaft, and the size of the inner hole of the first shaft sleeve is smaller than that of the thick end of the central shaft, so that the thick end of the central shaft cannot pass through the inner hole of the first shaft sleeve, and the axial movement of the central shaft in the direction close to the mast body is prevented.

4. The mast turntable assembly of the novel rotary drilling rig is characterized in that the mast turntable assembly further comprises an end cover (213), the end cover is arranged at one end, away from the mast body, of the second shaft sleeve, the end cover is used for axially limiting the central shaft, the central shaft is prevented from axially moving in the direction away from the mast body, the thin end of the central shaft is prevented from being separated from the first shaft sleeve, and the connection reliability of the turntable body and the mast body is guaranteed.

5. The mast turntable assembly of the rotary drilling rig is characterized in that a dismounting hole (253) aligned with the thin end of the central shaft is formed in one side, away from the second shaft sleeve, of the mast body, and after the pressing block assembly is dismounted, the central shaft can be knocked through the dismounting hole to dismount the central shaft together with the turntable body from the mast body.

6. The novel mast turntable assembly of the rotary drilling rig as claimed in claim 3, wherein the thick end of the central shaft is arranged in a second shaft sleeve in a penetrating manner through a bearing (214), namely the central shaft is sleeved with the inner ring of the bearing, and the second shaft sleeve is sleeved with the outer ring of the bearing.

7. The mast slewing ring assembly of the rotary drilling rig according to claim 2, wherein the contact plates comprise an upper contact plate (231), a left contact plate (232) and a right contact plate (233) which are respectively arranged on the inner sides of the upper pressure plate seat, the left pressure plate seat and the right pressure plate seat, and the upper contact plate, the left contact plate and the right contact plate are not in contact with each other.

8. The novel mast turntable assembly of the rotary drilling rig is characterized in that oil storage grooves (215) are formed in the turntable body base plate corresponding to the upper contact plate, the left contact plate and the right contact plate and used for storing lubricating grease so as to reduce abrasion of the turntable body and the contact plates.

9. The mast turntable assembly of the rotary drilling rig according to any one of claims 1 to 8, further comprising a partition plate (26), wherein the pressure plate indirectly presses the edge of the base plate of the turntable body through the partition plate, the partition plate is clamped between the pressure plate and the third abutting surface (216) of the turntable body, and the strength of the partition plate is smaller than that of the plate body where the third abutting surface of the turntable body is located and that of the pressure plate, so that when the mast body and the turntable body rotate relatively, the two surfaces of the partition plate are mainly worn, the wear of the pressure plate and the third abutting surface is reduced, and the service life of the turntable body and the pressure plate is prolonged.