CN113775636A - Clearance compensation type pin shaft device and anchor rod drilling machine - Google Patents
Clearance compensation type pin shaft device and anchor rod drilling machine Download PDFInfo
- Publication number
- CN113775636A CN113775636A CN202110998370.9A CN202110998370A CN113775636A CN 113775636 A CN113775636 A CN 113775636A CN 202110998370 A CN202110998370 A CN 202110998370A CN 113775636 A CN113775636 A CN 113775636A
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- pin
- expansion sleeve
- pin shaft
- oil
- sleeve
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- 238000005553 drilling Methods 0.000 title abstract description 4
- 239000003921 oil Substances 0.000 claims description 99
- 230000002093 peripheral effect Effects 0.000 claims description 46
- 239000010687 lubricating oil Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
Abstract
The invention discloses a clearance compensation type pin shaft device and an anchor rod drilling machine. The round pin axle has first end and second end, the periphery of the first end of round pin axle is equipped with first outer cone global, the second end of round pin axle is equipped with the second outer cone global, it is global to be equipped with first interior awl global in the first cover that rises, first interior awl global is suitable for the global cooperation of first outer cone, first cover cooperation that rises is in the first end of round pin axle, first fastener is connected between the first end of round pin axle and the first cover that rises, it is global to be equipped with the interior awl of second in the second cover that rises, the second cover cooperation that rises is held at the second of round pin axle, the second fastener is connected between the second end of round pin axle and the second cover that rises. The clearance compensation type pin shaft device has the advantages of simple structure, convenience in use, capability of automatic compensation and the like.
Description
Technical Field
The invention belongs to the technical field of intellectualization of mine support, and particularly relates to a clearance compensation type pin shaft device and a jumbolter.
Background
The pin shaft connection is an important connection mode in mechanical design, and force transmission is realized through the matching of the shaft holes.
In the correlation technique, the shaft of the pin shaft structure is directly matched with the hole, after the matching surface works for a period of time, the clearance between the shaft and the hole is larger and larger along with the increase of the abrasion loss, so that the effect of the transmission force is greatly reduced, and the precision of a transmission system cannot be ensured.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the embodiment of the invention provides the clearance compensation type pin shaft device which is simple in structure, capable of compensating the clearance between the pin shaft hole and the pin shaft and convenient to add lubricating oil.
The embodiment of the invention provides an anchor rod drilling machine which is high in transmission precision and low in cost.
The clearance compensation type pin shaft device comprises a pin shaft, wherein the pin shaft is provided with a first end and a second end, the periphery of the first end of the pin shaft is provided with a first outer cone peripheral surface, and the second end of the pin shaft is provided with a second outer cone peripheral surface; the first expansion sleeve is internally provided with a first inner cone circumferential surface which is suitable for the first outer cone circumferential surface to be matched, and the first expansion sleeve is matched at the first end of the pin shaft; the first fastener is connected between the first end of the pin shaft and the first expansion sleeve, the first fastener is used for clamping and fixing the first expansion sleeve at the first end of the pin shaft, and the position of the first fastener along the axial direction of the pin shaft is adjustable so as to adjust the expansion amount of the first expansion sleeve on the outer peripheral side of the pin shaft; a second expansion sleeve, wherein a second inner cone circumferential surface is arranged in the second expansion sleeve, the second inner cone circumferential surface is suitable for the second outer cone circumferential surface to be matched, and the second expansion sleeve is matched at the second end of the pin shaft; the second fastener is connected between the second end of the pin shaft and the second expansion sleeve, the second fastener is used for clamping and fixing the first expansion sleeve at the second end of the pin shaft, and the position of the second fastener along the axial direction of the pin shaft is adjustable so as to adjust the expansion amount of the second expansion sleeve on the outer peripheral side of the pin shaft.
According to the clearance compensation type pin shaft device, the clearance of the pin shaft hole is automatically compensated through the arrangement of the first expansion sleeve, the first fastening piece, the second expansion sleeve and the second fastening piece, and the effect of transmitting force of the pin shaft is improved.
In some embodiments, one end of the first expansion sleeve is provided with a first flange extending inward in the inner-outer direction, the first flange is opposite to the first end face of the pin shaft at an axial interval of the pin shaft, the free end of the first fastening member abuts against an end face of the first flange to adjust the expansion amount of the first expansion sleeve on the outer circumferential side of the pin shaft, and/or one end of the second expansion sleeve is provided with a second flange extending inward in the inner-outer direction, the second flange is opposite to the second end face of the pin shaft at an axial interval of the pin shaft, and the free end of the second fastening member abuts against an end face of the second flange to adjust the expansion amount of the second expansion sleeve on the outer circumferential side of the pin shaft.
In some embodiments, the inner peripheral surface of the other end of the first expansion sleeve is provided with a first slit extending in the axial direction thereof, and/or the inner peripheral surface of the other end of the first expansion sleeve is provided with a second slit extending in the axial direction thereof.
In some embodiments, the first slit penetrates the first expander sleeve in a radial direction of the first expander sleeve, and the second slit penetrates the second expander sleeve in a radial direction of the second expander sleeve.
In some embodiments, the first slit penetrates the first expander sleeve in an axial direction of the first expander sleeve, and the second slit penetrates the second expander sleeve in an axial direction of the second expander sleeve.
In some embodiments, the included angle between the generatrix of the first outer cone circumferential surface and the horizontal line is 10 ° to 15 °, and the included angle between the second outer cone circumferential surface and the horizontal line is 10 ° to 15 °.
In some embodiments, the outer circumferential surface of the pin shaft is provided with an oil groove extending along the circumferential direction of the pin shaft, and one end of the pin shaft is provided with an oil passage communicated with the oil groove, so that external lubricating oil is filled between the pin shaft and the pin hole through the oil passage and the oil groove.
In some embodiments, the oil passages include a first oil passage, a second oil passage, and a main oil passage, the main oil passage extends from the second end surface of the pin shaft in the axial direction of the pin shaft, an oil outlet of the first oil passage and an oil outlet of the second oil pipe are both communicated with the oil groove, an oil inlet of the first oil passage and an oil inlet of the second oil pipe are both communicated with the main oil passage, and the oil outlet of the first oil passage and the oil outlet of the second oil pipe are disposed opposite to each other.
In some embodiments, the clearance compensation pin device further includes a pressure filling oil cup detachably disposed at the second end of the pin and communicating with the oil passage.
A jumbolter according to an embodiment of the present invention includes: the engine body comprises a mounting part, and the mounting part is provided with a first mounting through hole; one end of the rocker arm penetrates through the mounting part and is provided with a second mounting through hole communicated with the first mounting through hole; the gap compensation type pin shaft device is any one of the gap compensation type pin shaft devices in the above embodiments, and the gap compensation type pin shaft device is arranged in the first mounting through hole and the second mounting through hole in a penetrating mode, so that when a pin shaft of the gap compensation type pin shaft device is abraded, the first expansion sleeve and the second expansion sleeve of the gap compensation type pin shaft device compensate the first mounting through hole and the second mounting hole.
Drawings
Fig. 1 is a schematic structural diagram of a gap compensation type pin device according to an embodiment of the present invention.
Fig. 2 is a perspective view of a gap compensating pin apparatus according to an embodiment of the present invention.
Fig. 3 is an annotated cross-sectional view of a pin of a lash compensation pin apparatus of an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a first expansion sleeve of the clearance compensation type pin shaft device according to the embodiment of the invention.
Fig. 5 is a schematic structural view of a jumbolter according to an embodiment of the present invention.
Reference numerals:
a gap compensation type pin device 100;
a jumbolter 10;
a pin shaft 1; a first outer conical peripheral surface 11; a second outer conical peripheral surface 12; an oil sump 13; the first oil passage 14; the second oil passage 15; a main oil gallery 16; a first expansion sleeve 2; a first flange 21; a first slot 22; a first fastener 3; a second expansion sleeve 4; the second flange 41; pressing and filling the oil cup 5; a mounting portion 6; a rocker arm 7; a second fastener 8.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A gap compensating pin device 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 4.
As shown in fig. 1 to 4, a clearance compensation type pin device 100 according to an embodiment of the present invention includes a pin 1, a first expansion sleeve 2, a first fastening member 3, a second expansion sleeve 4, and a second fastening member 8.
The pin 1 has a first end (an upper end as shown in fig. 1-3) and a second end (a lower end as shown in fig. 1-3), the first end of the pin 1 is provided with a first outer conical peripheral surface 11 at the periphery, and the second end of the pin 1 is provided with a second outer conical peripheral surface 12.
Specifically, as shown in fig. 1 and 3, the upper end surface of the pin shaft 1 is provided with a first outer conical peripheral surface 11, the cross-sectional area of the first outer conical peripheral surface 11 gradually increases from top to bottom, the lower end surface of the pin shaft 1 is provided with a second outer conical peripheral surface 12, the cross-sectional area of the second outer conical peripheral surface 12 gradually decreases from top to bottom, the pin shaft 1 is suitable for being inserted into a pin hole formed between a plurality of parts to be used for connecting the plurality of parts, and the plurality of parts can rotate relatively.
The first inner cone circumferential surface is arranged in the first expansion sleeve 2 and is suitable for being matched with the first outer cone circumferential surface 11, and the first expansion sleeve 2 is matched with the first end of the pin shaft 1. Specifically, as shown in fig. 1, the inner peripheral surface of the first expansion sleeve 2 is a first inner conical peripheral surface, and the cross-sectional area of the first inner conical peripheral surface gradually increases from top to bottom, so that the first expansion sleeve 2 is sleeved on the first outer conical peripheral surface 11 of the pin shaft 1, and the first outer conical peripheral surface 11 and the first inner conical peripheral surface are tightly attached.
The first fastening piece 3 is connected between the first end of the pin shaft 1 and the first expansion sleeve 2, the first fastening piece 3 is used for clamping and fixing the first expansion sleeve 2 at the first end of the pin shaft 1, and the position of the first fastening piece 3 along the axial direction of the pin shaft 1 is adjustable so as to adjust the expansion amount of the first expansion sleeve 2 on the periphery side of the pin shaft 1. Specifically, as shown in fig. 1, the first fastening member 3 is a screw, the screw is inserted into the upper end surface of the pin shaft 1, the lower end surface of the head of the screw abuts against the upper end surface of the first expansion sleeve 2, and the screw is tightened so that the first expansion sleeve 2 has a pressing force moving downward, and when the pin shaft 1 is worn, the pressing force automatically pushes the first expansion sleeve 2 to move downward so that the first expansion sleeve 2 is filled between the outer circumferential surface of the pin shaft 1 and the pin hole, so that the first expansion sleeve 2 automatically compensates for the gap between the pin shaft 1 and the pin shaft 1 hole.
A second inner cone circumferential surface is arranged in the second expansion sleeve 4, the second inner cone circumferential surface is suitable for being matched with the second outer cone circumferential surface 12, and the second expansion sleeve 4 is matched with the second end of the pin shaft 1. Specifically, as shown in fig. 1, the inner peripheral surface of the second expansion sleeve 4 is a second inner tapered peripheral surface, and the cross-sectional area of the second inner tapered peripheral surface gradually increases from top to bottom, so that the second expansion sleeve 4 is sleeved on the second outer tapered peripheral surface 12 of the pin shaft 1, and the second outer tapered peripheral surface 12 and the second inner tapered peripheral surface are tightly attached.
The second fastening piece 8 is connected between the second end of the pin shaft 1 and the second expansion sleeve 4, the second fastening piece 8 is used for clamping and fixing the first expansion sleeve 2 at the second end of the pin shaft 1, and the position of the second fastening piece 8 along the axial direction of the pin shaft 1 is adjustable so as to adjust the expansion amount of the second expansion sleeve 4 on the outer circumferential side of the pin shaft 1. Specifically, the second fastening member 8 is a bolt and a nut, the bolt is fixed at the lower end of the pin shaft 1 through thread fit, the nut is fitted on the bolt and located below the second expansion sleeve 4, the upper end surface of the nut is in abutting fit with the lower end surface of the second expansion sleeve 4, and the nut is tightened so that the second expansion sleeve 4 has an upward moving pressing force, when the pin shaft 1 is worn, the pressing force automatically pushes the second expansion sleeve 4 to move upward, so that the second expansion sleeve 4 is filled between the outer peripheral surface of the pin shaft 1 and the pin hole, and the second expansion sleeve 4 automatically compensates for a gap between the pin shaft 1 and the pin hole 1.
According to the clearance compensation type pin shaft device 100 provided by the embodiment of the invention, the clearance of the hole of the pin shaft 1 is automatically compensated through the arrangement of the first expansion sleeve 2, the first fastening piece 3, the second expansion sleeve 4 and the second fastening piece 8, so that the effect of transmitting force of the pin shaft 1 is improved, the precision of a transmission system of the pin shaft 1 is ensured, and the service life of the pin shaft 1 is prolonged.
In some embodiments, one end of the first expansion sleeve 2 is provided with a first flange 21 extending inwards in the inner and outer directions, the first flange 21 is opposite to the first end face of the pin 1 at an axial interval of the pin 1, the free end of the first fastening member 3 abuts against the end face of the first flange 21 to adjust the expansion amount of the first expansion sleeve 2 on the outer circumferential side of the pin 1, and/or one end of the second expansion sleeve 4 is provided with a second flange 41 extending inwards in the inner and outer directions, the second flange 41 is opposite to the second end face of the pin 1 at an axial interval of the pin 1, and the free end of the second fastening member 8 abuts against the end face of the second flange 41 to adjust the expansion amount of the second expansion sleeve 4 on the outer circumferential side of the pin 1.
Specifically, as shown in fig. 1-2, the inner peripheral surface of the upper end of the first expansion sleeve 2 is provided with a first flange 21, the head of the screw abuts on the upper end surface of the first flange 21, the inner peripheral surface of the lower end of the second expansion sleeve 4 is provided with a second flange 41, and the nut abuts on the lower end surface of the second flange 41, so that the screw and the nut can apply pressing force to the first expansion sleeve 2 and the second expansion sleeve 4 conveniently, and the first expansion sleeve 2 and the second expansion sleeve 4 can be arranged more reasonably.
In some embodiments, the inner peripheral surface of the other end of the first inner sleeve 2 is provided with a first slit 22 extending in the axial direction thereof, and/or the inner peripheral surface of the other end of the first inner sleeve 2 is provided with a second slit (not shown in the drawings) extending in the axial direction thereof. Specifically, as shown in fig. 1 and 4, the lower end portion of the inner peripheral surface of the first expander 2 is provided with a first slit 22 extending in the up-down direction, and the upper end portion of the inner peripheral surface of the second expander 4 is provided with a second slit extending in the up-down direction, and since the cross-sectional area of the first outer tapered peripheral surface 11 is gradually increased from the top to the bottom, the first expander 2 is easily broken when the first expander 2 moves downward, the cross-sectional area of the second outer tapered peripheral surface 12 is gradually decreased from the top to the bottom, and the second expander 4 is easily broken when the second expander 4 moves upward. Therefore, the first slit 22 is formed in the inner peripheral surface of the first expansion sleeve 2, and the second slit is formed in the inner peripheral surface of the second expansion sleeve 4, thereby improving the service life of the first expansion sleeve 2 and the second expansion sleeve 4.
In some embodiments, a first slit 22 extends through the first expander 2 in the radial direction of the first expander 2, and a second slit extends through the second expander 4 in the radial direction of the second expander 4. Specifically, the first slit 22 penetrates through the first expansion sleeve 2 along the inside-outside direction, the second slit penetrates through the second expansion sleeve 4 along the inside-outside direction, and the fault tolerance of the first expansion sleeve 2 and the second expansion sleeve 4 further improves the service life of the first expansion sleeve 2 and the second expansion sleeve 4.
In some embodiments, a first slit 22 extends through the first expander sleeve 2 in the axial direction of the first expander sleeve 2, and a second slit extends through the second expander sleeve 4 in the axial direction of the second expander sleeve 4. Specifically, as shown in fig. 1 and 4, the first slit 22 penetrates the first sleeve 2 in the up-down direction, and the first slit 22 penetrates the first sleeve 2 in the inside-outside direction, the second slit penetrates the second sleeve 4 in the up-down direction, and the second slit penetrates the second sleeve 4 in the inside-outside direction, thereby making the arrangement of the first sleeve 2 and the second sleeve 4 more reasonable.
In some embodiments, the generatrix of the first outer cone peripheral surface 11 is angled at 10 ° to 15 ° to the horizontal and the second outer cone peripheral surface 12 is angled at 10 ° to 15 ° to the horizontal. Specifically, as shown in fig. 3, θ is 10 ° to 15 °, when the included angle between the generatrix and the horizontal line is less than 10 °, the outer circumferential surfaces of the first external conical surface and the second external conical surface are close to horizontal, which is not easy to drive the first expansion sleeve 2 and the second expansion sleeve 4, and when the included angle between the generatrix and the horizontal line is greater than 15 °, the inclination angles of the outer circumferential surfaces of the first external conical surface and the second external conical surface are too large, which results in the strength reduction of the pin shaft 1. Therefore, the included angle between the bus and the horizontal line is 10-15 degrees, so that the arrangement of the pin shaft 1 is more reasonable.
In some embodiments, the outer circumferential surface of the pin shaft 1 is provided with an oil groove 13 extending along the circumferential direction thereof, and one end of the pin shaft 1 is provided with an oil passage communicating with the oil groove 13, so that external lubricating oil is filled between the pin shaft 1 and the pin hole through the oil passage and the oil groove 13. Therefore, the external lubricating oil can be added between the outer surface of the pin shaft 1 and the inner circumferential surface of the hole of the pin shaft 1, the abrasion of the outer surface of the pin shaft 1 is reduced, and the service life of the pin shaft 1 is prolonged.
In some embodiments, the oil passages include a first oil passage 14, a second oil passage 15, and a main oil passage 16, the main oil passage 16 extends from the second end surface of the pin 1 in the axial direction (up and down direction as shown in fig. 1-3) of the pin 1, an oil outlet of the first oil passage 14 and an oil outlet of the second oil pipe are both communicated with the oil groove 13, an oil inlet of the first oil passage 14 and an oil inlet of the second oil pipe are both communicated with the main oil passage 16, and an oil outlet of the first oil passage 14 and an oil outlet of the second oil pipe are disposed opposite to each other. Specifically, as shown in fig. 1, the oil groove 13 is disposed in the middle of the pin 1, the main oil duct 16 extends from the lower end surface of the pin 1 to the middle of the pin 1, the first oil duct 14 and the second oil duct are disposed in the middle of the pin 1, the first oil duct and the second oil duct both extend along the inner and outer directions, and the first oil duct and the second oil duct are symmetrically disposed along the central axis of the pin 1, so that the lubricating oil uniformly flows into the pin 1 and the hole of the pin 1, and the situation that the lubricating oil on one side of the pin 1 is too little and the abrasion on one side of the pin 1 is serious is prevented.
In some embodiments, the lash compensation pin apparatus 100 further includes a pressure filling oil cup 5, and the pressure filling oil cup 5 is detachably disposed at the second end of the pin 1 and is communicated with the oil passage. Specifically, as shown in fig. 1, the bolt in the second fastening member 8 may be replaced by a pressure filling oil cup 5, the pressure filling oil cup 5 is disposed at the lower end of the pin shaft 1 through thread fit, the nut is disposed below the second expansion sleeve 4 on the pressure filling oil cup 5 through thread fit, the upper end surface of the nut is in abutting fit with the lower end surface of the second expansion sleeve 4, one end of the pressure filling oil cup 5 is connected to an external oil tank, and the other end of the pressure filling oil cup 5 is connected to an oil passage, so that external lubricating oil flows into the oil passage through the pressure filling oil cup 5.
As shown in fig. 5, the jumbolter according to the embodiment of the present invention includes a body (not shown), a swing arm 7, and a backlash compensation type pin device.
The organism includes installation department 6, and installation department 6 is equipped with first installation through-hole. Specifically, as shown in fig. 5, the first mounting portion 6 includes two mounting plates disposed at an interval from top to bottom, and the mounting plates are provided with first mounting through holes penetrating in the top-bottom direction.
One end of the rocker arm 7 is arranged on the mounting part 6 in a penetrating way and is provided with a second mounting through hole communicated with the first mounting through hole. One end of the rocker arm 7 is arranged between the two mounting plates in a penetrating way, and a second mounting through hole opposite to the first mounting through hole is arranged on the rocker arm 7.
The gap compensation type pin device 100 is the gap compensation type pin device 100 according to any one of the above embodiments, and the gap compensation type pin device 100 is inserted into the first mounting through hole and the second mounting through hole, so that when the pin 1 of the gap compensation type pin device 100 is worn, the first expansion sleeve 2 and the second expansion sleeve 4 of the gap compensation type pin device 100 compensate the first mounting through hole and the second mounting through hole.
According to the jumbolter 10 provided by the embodiment of the invention, the transmission precision of the rocker arm 7 is improved and the force transmission effect is ensured through the clearance compensation type pin shaft device 100.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" 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 "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides a clearance compensation formula round pin axle device which characterized in that includes:
the hinge pin is provided with a first end and a second end, the periphery of the first end of the hinge pin is provided with a first outer cone circumferential surface, and the second end of the hinge pin is provided with a second outer cone circumferential surface;
the first expansion sleeve is internally provided with a first inner cone circumferential surface which is suitable for the first outer cone circumferential surface to be matched, and the first expansion sleeve is matched at the first end of the pin shaft;
the first fastener is connected between the first end of the pin shaft and the first expansion sleeve, the first fastener is used for clamping and fixing the first expansion sleeve at the first end of the pin shaft, and the position of the first fastener along the axial direction of the pin shaft is adjustable so as to adjust the expansion amount of the first expansion sleeve on the outer peripheral side of the pin shaft;
a second expansion sleeve, wherein a second inner cone circumferential surface is arranged in the second expansion sleeve, the second inner cone circumferential surface is suitable for the second outer cone circumferential surface to be matched, and the second expansion sleeve is matched at the second end of the pin shaft;
the second fastener is connected between the second end of the pin shaft and the second expansion sleeve, the second fastener is used for clamping and fixing the first expansion sleeve at the second end of the pin shaft, and the position of the second fastener along the axial direction of the pin shaft is adjustable so as to adjust the expansion amount of the second expansion sleeve on the outer peripheral side of the pin shaft.
2. The backlash compensation pin device as claimed in claim 1, wherein one end of the first expanding sleeve is provided with a first flange extending inward in an inner-outer direction, the first flange is spaced apart from the first end surface of the pin in an axial direction of the pin, a free end of the first fastening member abuts against an end surface of the first flange to adjust an amount of expansion of the first expanding sleeve on an outer circumferential side of the pin,
and/or one end of the second expansion sleeve is provided with a second flange which extends inwards along the inner and outer directions, the second flange is opposite to the second end face of the pin shaft in the axial direction of the pin shaft at intervals, and the free end of the second fastener is abutted against the end face of the second flange so as to adjust the expansion amount of the second expansion sleeve on the outer peripheral side of the pin shaft.
3. The backlash compensation pin device as claimed in claim 1, wherein an inner peripheral surface of the other end of said first expanding sleeve is provided with a first slit extending in an axial direction thereof,
and/or the inner peripheral surface of the other end of the first expansion sleeve is provided with a second slit extending in the axial direction thereof.
4. The backlash-compensating pin device of claim 3, wherein said first slot extends through said first expanding sleeve in a radial direction of said first expanding sleeve,
the second slit penetrates the second expansion sleeve in the radial direction of the second expansion sleeve.
5. A gap-compensating pin arrangement as claimed in any one of claims 3 to 4, wherein the first slot extends through the first expander sleeve in the axial direction thereof,
the second slit penetrates the second expansion sleeve along the axial direction of the second expansion sleeve.
6. A gap-compensating pin device as claimed in any one of claims 1 to 4, wherein the generatrix of the first outer conical peripheral surface forms an angle of 10 ° to 15 ° with the horizontal,
the included angle between the peripheral surface of the second outer cone and the horizontal line is 10-15 degrees.
7. The gap compensating pin device according to any one of claims 1 to 4, wherein the outer circumferential surface of the pin is provided with an oil groove extending along the circumferential direction thereof, and one end of the pin is provided with an oil passage communicating with the oil groove, so that external lubricating oil is filled between the pin and the pin hole through the oil passage and the oil groove.
8. The gap compensating pin apparatus of claim 7, wherein the oil passages comprise a first oil passage, a second oil passage, and a main oil passage extending from the second end surface of the pin in an axial direction of the pin,
the oil outlet of the first oil duct and the oil outlet of the second oil pipe are communicated with the oil groove, the oil inlet of the first oil duct and the oil inlet of the second oil pipe are communicated with the main oil duct, and the oil outlet of the first oil duct and the oil outlet of the second oil pipe are arranged oppositely.
9. The lash compensation pin apparatus of claim 8, further comprising a squeeze cup removably disposed at the second end of the pin and in communication with the oil passage.
10. A jumbolter, comprising:
the engine body comprises a mounting part, and the mounting part is provided with a first mounting through hole;
one end of the rocker arm penetrates through the mounting part and is provided with a second mounting through hole communicated with the first mounting through hole;
a gap compensation type pin device, said gap compensation type pin device being as claimed in any one of the above claims 1 to 9, said gap compensation type pin device being inserted into said first mounting through hole and said second mounting through hole, so that when the pin of said gap compensation type pin device is worn, said first expansion sleeve and said second expansion sleeve of said gap compensation type pin device compensate said first mounting through hole and said second mounting through hole.
Priority Applications (1)
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| CN202110998370.9A CN113775636A (en) | 2021-08-27 | 2021-08-27 | Clearance compensation type pin shaft device and anchor rod drilling machine |
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| CN202110998370.9A CN113775636A (en) | 2021-08-27 | 2021-08-27 | Clearance compensation type pin shaft device and anchor rod drilling machine |
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| CN211737664U (en) * | 2020-03-16 | 2020-10-23 | 沃德传动（天津）股份有限公司 | Expansion sleeve structure for coal mining machine |
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| US20090313788A1 (en) * | 2008-06-18 | 2009-12-24 | Roger Svensson | Integrated sealed and lube free pivot system |
| CN104153799A (en) * | 2013-05-14 | 2014-11-19 | 佳木斯煤矿机械有限公司 | Rocker arm type onboard roof bolter |
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Application publication date: 20211210 |