CN204344124U - Coal-winning machine shock preventing device - Google Patents
Coal-winning machine shock preventing device Download PDFInfo
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- CN204344124U CN204344124U CN201420811431.1U CN201420811431U CN204344124U CN 204344124 U CN204344124 U CN 204344124U CN 201420811431 U CN201420811431 U CN 201420811431U CN 204344124 U CN204344124 U CN 204344124U
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Abstract
The utility model relates to mining machinery, specifically provides a kind of coal-winning machine shock preventing device.The utility model is intended to solve the problem that existing bracing or strutting arrangement effectively cannot suppress the vibration on fore-and-aft direction.For this purpose, shock preventing device of the present utility model comprises: be arranged on the first hydraulic cylinder on coal-winning machine first side and the second hydraulic cylinder; Be arranged on the 3rd hydraulic cylinder on coal-winning machine second side and the 4th hydraulic cylinder; Connect the first supporting base of the outboard end of the first hydraulic cylinder and the second hydraulic cylinder; And the second supporting base of the outboard end of connection the 3rd hydraulic cylinder and the 4th hydraulic cylinder.Operationally, first side of the first hydraulic cylinder, the second hydraulic cylinder and coal-winning machine forms three-legged structure, second side of the 3rd hydraulic cylinder, the 4th hydraulic cylinder and coal-winning machine also forms three-legged structure, and the first supporting base and the second supporting base are resisted against on the sidewall of coal mine roadway.Vibration on front and back and left and right directions that this structure makes coal-winning machine produce because cut operates can be effectively suppressed.
Description
Technical field
The utility model relates to mining machinery, specifically provides a kind of coal-winning machine shock preventing device.
Background technology
Coal-winning machine is the large-scale synthesis machinery for replacing manpower to carry out coal mining activity.Utilize coal-winning machine to mine and can alleviate manual labor, raising safety, reach the object of high yield, high efficiency, low energy consumption.Coal-winning machine can produce very large vibration in operation process, and this vibration not only can affect the fuselage stability of coal-winning machine, and can reduce the application life of burr of shearER element-especially cut cutter head/cut tooth/cylinder, and then affects the production efficiency of coal mining activity.
The technical scheme solving this problem has been there is in prior art.Such as, in CN201090216Y, describe a kind of horizontal side supporting fixing device for coal-winning machine, this device comprise be separately positioned on coal-winning machine rear portion both sides on two oil cylinders.Under elongation state, described two oil cylinders are resisted against on the sidewall of tunnel to ensure the fuselage stability of coal-winning machine by connection seat.But also there are some problems in this technical scheme.Specifically, the vibration of coal-winning machine in the operation process mainly colliery scope of operation is applied to that the reaction force of coal-winning machine causes, and this vibration is mainly transmitted along the longitudinal direction.But, every side of said apparatus is only provided with a support cylinder, and under holding state, every root oil cylinder is vertical with the fuselage of coal-winning machine, this fuselage shaking causing described oil cylinder substantially cannot eliminate or suppress on fore-and-aft direction.And the vibration along the fore-and-aft direction transmission of coal-winning machine fuselage can make described oil cylinder bear very large moment of flexure under holding state, thus affects its application life.For the problems referred to above, in practice, some manufacturer adds at least one oil cylinder on the both sides of the front portion of coal-winning machine fuselage, this alleviates the impact that fuselage porpoise causes to oil cylinder to a certain extent, but still cannot eliminate or suppress the vibration on fore-and-aft direction.
In addition, along with the continuous propelling of operation process, coal-winning machine needs to move forward, and now just needs retraction oil cylinder, then again stretches out the sidewall of oil cylinder against coal mine roadway when coal-winning machine arrives target location.But the sidewall of coal mine roadway is scraggly, and its shape varies, this causes finding firm rest position more difficult.Therefore, there is the problem frequently must finding the strong point with the movement of coal-winning machine in existing shock preventing device, its program is very loaded down with trivial details, therefore causes production efficiency very low.
Utility model content
The utility model is intended to solve the problem.Specifically, the utility model is intended to solve vibration on fore-and-aft direction that existing bracing or strutting arrangement cannot effectively suppress coal-winning machine to produce in operation and needs frequently change Support Position and frequent centering problem along with the movement of coal-winning machine.
For this purpose, the utility model provides a kind of coal-winning machine shock preventing device, this coal-winning machine comprises fuselage, motion portion, drive division and cutting units, motion portion is arranged on the bottom of fuselage, move in coal mine roadway for dragging coal-winning machine, drive division is arranged on the front of fuselage, and cutting units is arranged on the front of drive division, and drive division operates to carry out cut operation to rib for driving cutting units.The feature of described coal-winning machine shock preventing device is to comprise: be arranged on the first hydraulic cylinder on the first side of described fuselage and the second hydraulic cylinder; Be arranged on the 3rd hydraulic cylinder on the second side of described fuselage and the 4th hydraulic cylinder; Connect the first supporting base of the outboard end of described first hydraulic cylinder and described second hydraulic cylinder; And connect second supporting base of outboard end of described 3rd hydraulic cylinder and described 4th hydraulic cylinder.Operationally, first side of described first hydraulic cylinder, described second hydraulic cylinder and described fuselage forms three-legged structure, second side of described 3rd hydraulic cylinder, described 4th hydraulic cylinder and described fuselage also forms three-legged structure, and described first supporting base and described second supporting base are resisted against on the sidewall of coal mine roadway, the vibration on described coal-winning machine front and back in operation and left and right directions can be effectively suppressed; Described coal-winning machine shock preventing device also comprises: be arranged on the first slide rail on the first side of described fuselage; And the second slide rail be arranged on the second side of described fuselage, wherein, described second hydraulic cylinder comprises the first slide block set within it on side, the medial extremity of described second hydraulic cylinder can be moved on described first slide rail, and described 4th hydraulic cylinder also comprises the second slide block set within it on side, the medial extremity of described 4th hydraulic cylinder can be moved on described second slide rail; The outboard end of wherein said first hydraulic cylinder and described second hydraulic cylinder is connected with pivotable between described first supporting base, and the outboard end of described 3rd hydraulic cylinder and described 4th hydraulic cylinder with between described second supporting base also pivotable be connected.
In the preferred embodiment of above-mentioned coal-winning machine shock preventing device, described first slide rail comprises the first ratchet lock mechanism be arranged on bottom it, and this first ratchet lock mechanism is for the fixing position of described first slide block on described first slide rail; And described second slide rail comprises the second ratchet lock mechanism be arranged on bottom it, this second ratchet lock mechanism is for the fixing position of described second slide block on described second slide rail.
In the preferred embodiment of above-mentioned coal-winning machine shock preventing device, the medial extremity of described first hydraulic cylinder is pivotally connected to the rear portion of the first side of described fuselage, and the medial extremity of described second hydraulic cylinder is pivotally connected on described first slide block; And the medial extremity of described 3rd hydraulic cylinder is pivotally connected to the rear portion of the second side of described fuselage, the medial extremity of described 4th hydraulic cylinder is pivotally connected on described second slide block.
In the preferred embodiment of above-mentioned coal-winning machine shock preventing device, the medial extremity of described first hydraulic cylinder is connected to the rear portion of the first side of described fuselage, makes described first hydraulic cylinder can to become between the position of 90 degree of angles and the position parallel with described first side pivotable along the horizontal plane with described first side; And the medial extremity of described 3rd hydraulic cylinder is connected to the rear portion of the second side of described fuselage, make described 3rd hydraulic cylinder can to become between the position of 90 degree of angles and the position parallel with described second side pivotable along the horizontal plane with described second side.
In the preferred embodiment of above-mentioned coal-winning machine shock preventing device, the medial extremity of described second hydraulic cylinder is flexibly connected with described first slide block, makes described second hydraulic cylinder can to become between the position of 80 degree of angles and the position parallel with described first side pivotable along the horizontal plane with described first side; And the medial extremity of described 4th hydraulic cylinder is flexibly connected with described second slide block, make described 4th hydraulic cylinder can to become between the position of 80 degree of angles and the position parallel with described second side pivotable along the horizontal plane with described second side.
In the preferred embodiment of above-mentioned coal-winning machine shock preventing device, the outboard end of described first hydraulic cylinder and described second hydraulic cylinder is respectively arranged with the first pivot and the second pivot, and described first supporting base is provided with the first axle sleeve and the second axle sleeve that mate with described first pivot and described second pivot respectively; And the outboard end of described 3rd hydraulic cylinder and described 4th hydraulic cylinder is respectively arranged with the 3rd pivot and the 4th pivot, and described second supporting base is provided with the 3rd axle sleeve and the 4th axle sleeve that mate with described 3rd pivot and described 4th pivot respectively.
In the preferred embodiment of above-mentioned coal-winning machine shock preventing device, described first supporting base comprises the first base plate and the first connecting portion, described first axle sleeve and described second axle sleeve are arranged on described first connecting portion, and adopt bulb to be connected between described first connecting portion with described first base plate; And described second supporting base comprises the second base plate and the second connecting portion, described 3rd axle sleeve and described 4th axle sleeve are arranged on described second connecting portion, and also adopt bulb to be connected between described second connecting portion with described second base plate.
Those skilled in the art it is easily understood that, owing to having said structure, coal-winning machine shock preventing device of the present utility model can obtain following technique effect: on the one hand, because the fuselage of two hydraulic cylinders on each side of coal-winning machine and coal-winning machine forms three-legged structure, therefore coal-winning machine fuselage double swerve can not only be avoided, and the vibration on the fore-and-aft direction produced in effectively suppressing cut to operate, the moment of flexure that described porpoise is applied to every root hydraulic cylinder can also be eliminated simultaneously, significantly extend the application life of hydraulic cylinder, on the other hand, due to each side of coal-winning machine being provided with slide rail, and the medial extremity of the second hydraulic cylinder and the 4th hydraulic cylinder is respectively arranged with the slide block mated with described slide rail, this makes when coal-winning machine moves forward, sliding on described slide rail by making described slide block changes between the first hydraulic cylinder and the second hydraulic cylinder, angle between 3rd hydraulic cylinder and the 4th hydraulic cylinder and between described hydraulic cylinder and coal-winning machine side, and without the need to changing the first supporting base and the strong point of the second supporting base on the sidewall of coal mine roadway, therefore the frequent trouble changing Support Position and frequent centering is eliminated, the efficiency of coal mining operation is increased substantially.
Accompanying drawing explanation
Understand preferred embodiment of the present utility model in conjunction with the drawings, above-mentioned and other feature and advantage of the present utility model will become clearer, in accompanying drawing:
Fig. 1 is the schematic side view of the coal-winning machine be provided with according to shock preventing device of the present utility model, illustrated therein is the slide rail on coal-winning machine second side.
Fig. 2 is the schematic top plan view of the coal-winning machine be provided with according to shock preventing device of the present utility model, and wherein slide block is in foremost position in slide rail.
Fig. 3 is the schematic top plan view of the coal-winning machine be provided with according to shock preventing device of the present utility model, and wherein slide block is in rearmost end position in slide rail.
Fig. 4 overlooks enlarged drawing according to the first and second hydraulic cylinders of shock preventing device of the present utility model and the first supporting base.
Fig. 5 overlooks enlarged drawing according to the third and fourth hydraulic cylinder of shock preventing device of the present utility model and the second supporting base.
Fig. 6 overlooks enlarged drawing according to the first supporting base of shock preventing device of the present utility model.
Fig. 7 overlooks enlarged drawing according to the second supporting base of shock preventing device of the present utility model.
Fig. 8 is the schematic top plan view of the ratchet lock mechanism according to shock preventing device of the present utility model.
Detailed description of the invention
The detailed description of making preferred embodiment of the present utility model is with reference to the accompanying drawings only exemplary in essence, and not intended to be limiting the utility model, its application or purposes.It should be noted that; although this preferred embodiment discloses various design parameter of the present utility model and details; but those skilled in the art it is easily understood that; protection domain of the present utility model is not limited to these parameters and details; when not departing from general principle of the present utility model; those skilled in the art can make amendment or equivalent replacement to these parameters and details, and amendment or the embodiment after replacing also will fall within protection domain of the present utility model.
First with reference to Fig. 1, the figure shows the coal-winning machine 1 be provided with according to shock preventing device of the present utility model.For the sake of clarity, illustrate only the second slide rail 402 according to shock preventing device of the present utility model in Fig. 1, eliminate miscellaneous part.As shown in Figure 1, coal-winning machine 1 comprises fuselage 101, motion portion 102, drive division 103 and cutting units 104.Motion portion 102 is arranged on the bottom of fuselage 101, moves in coal mine roadway for dragging coal-winning machine 1, and this motion portion 102 can be such as crawler belt.Drive division 103 is arranged on the front of fuselage 101, and cutting units 104 is arranged on the front of drive division 103, and drive division 103 is for driving cutting units 104 to operate to carry out cut operation to rib.Exemplarily, drive division 103 can be motor or hydraulic motor, and cutting units 104 can be cut cutterhead or cutting drum and stretching device thereof.
Next consult Fig. 2, this figure is the schematic top plan view of the coal-winning machine 1 be provided with according to shock preventing device of the present utility model.As shown in Figure 2, shock preventing device of the present utility model comprises: be arranged on the first hydraulic cylinder 201 and the second hydraulic cylinder 202 on the first side 10 of fuselage 101, and described first hydraulic cylinder 201 and the second hydraulic cylinder 202 can stretch thus change length under the effect of hydraulic coupling; Be arranged on the 3rd hydraulic cylinder 203 on the second side 11 of fuselage 101 and the 4th hydraulic cylinder 204, described 3rd hydraulic cylinder 203 and the 4th hydraulic cylinder 204 also can stretch thus change length under the effect of hydraulic coupling; Connect the first supporting base 301 (as shown in Figure 4) of the outboard end 2012 of the first hydraulic cylinder 201 and the outboard end 2022 of the second hydraulic cylinder 202; And connect the second supporting base 302 (as shown in Figure 5) of the outboard end 2032 of the 3rd hydraulic cylinder 203 and the outboard end 2042 of the 4th hydraulic cylinder 204.See as known in Fig. 2, operationally, first side 10 of the first hydraulic cylinder 201, second hydraulic cylinder 202 and fuselage 101 forms three-legged structure, second side 11 of the 3rd hydraulic cylinder 203, the 4th hydraulic cylinder 204 and fuselage 101 also forms three-legged structure, and the first supporting base 301 and the second supporting base 302 are resisted against on the sidewall 12,13 of coal mine roadway respectively.Those skilled in the art it is easily understood that, when forming above-mentioned triangular support configurations, major part vibration on the fore-and-aft direction that coal-winning machine 1 produces because of cut rib is in operation understood the length direction transmission along described hydraulic cylinder thus is effectively suppressed, and the moment of flexure that the residual vibration on described fore-and-aft direction is applied to described hydraulic cylinder also and can be cancelled out each other between the 3rd hydraulic cylinder 203 and the 4th hydraulic cylinder 204 between the first hydraulic cylinder 201 and the second hydraulic cylinder 202.Therefore, the vibration on the fore-and-aft direction that above-mentioned triangular support configurations can not only suppress coal-winning machine 1 to produce in operation well, and also described in energy available protecting, hydraulic cylinder is not subject to the shear action of moment of flexure thus extends its application life.
Next consult Fig. 3 and continue to consult Fig. 2, also comprising the first slide rail 401 be arranged on the first side 10 of fuselage 101 according to shock preventing device of the present utility model; And the second slide rail 402 be arranged on the second side 11 of fuselage 101.Exemplarily, described slide rail 401,402 can be formed in two grooves on the first side 10 of fuselage 101 and the second side 11, and the size of described groove can adjust according to concrete needs such as coal-winning machine models.In addition, second hydraulic cylinder 202 comprises the first slide block 501 set within it on side 2021 (as shown in Figure 4), first slide block 501 can slide in the first slide rail 401, and this makes the medial extremity 2021 of the second hydraulic cylinder 202 can move on the first slide rail 401; And the 4th hydraulic cylinder 204 also comprises the second slide block 502 set within it on side 2041 (as shown in Figure 5), second slide block 502 can slide in the second slide rail 402, and this makes the medial extremity 2041 of the 4th hydraulic cylinder 204 can move on the second slide rail 402.
Continue to consult Fig. 2 and 3, in fig. 2, the first slide block 501 and the second slide block 502 are in foremost position in the first slide rail 401 and the second slide rail 402, that is, be in the position near drive division 103 of slide rail 401 and 402.Now, between the first hydraulic cylinder 201 and the second hydraulic cylinder, 202 and the 3rd angles between hydraulic cylinder 203 and the 4th hydraulic cylinder 204 are maximum.Preferably, described maximum angle can be set to 120 degree.In figure 3, the first slide block 501 and the second slide block 502 are in rearmost end position, that is, the position of the tail end near fuselage 101 of slide rail 401 and 402 in the first slide rail 401 and the second slide rail 402.Now, the angle between the first hydraulic cylinder 201 and the second hydraulic cylinder 202 and between the 3rd hydraulic cylinder 203 and the 4th hydraulic cylinder 204 is minimum.Preferably, described minimum angle can be set to 30 degree.Those skilled in the art it is easily understood that; described maximum angle and minimum angles can carry out choose reasonable according to coal mine roadway width and required support degree; as long as can be formed with the triangular support configurations helping porpoise be carried out to effectively suppression, this does not exceed principle of the present utility model and protection domain.
Next consult Figure 4 and 5 and continue to consult Fig. 3, the medial extremity 2011 of the first hydraulic cylinder 201 is pivotally connected to the rear portion (for pivotable is connected to the rear end of the first slide rail 401 shown in figure) of the first side 10 of fuselage 101, and the medial extremity 2021 of the second hydraulic cylinder 202 is pivotally connected on the first slide block 501; And the medial extremity 2031 of the 3rd hydraulic cylinder 203 is pivotally connected to the rear portion (for pivotable is connected to the rear end of the second slide rail 402 shown in figure) of the second side 11 of fuselage 101, and the medial extremity 2041 of the 4th hydraulic cylinder 204 is pivotally connected on the second slide block 502.Specifically, the medial extremity 2011 of the first hydraulic cylinder 201 is pivotally connected to the rear portion of the first side 10 of fuselage 101, make the first hydraulic cylinder 201 can in (that is, along the plane at Fig. 2 and the 3 places) pivotable along the horizontal plane between position and the position parallel with the first side 10 with the 90 degree of angles in 10 one-tenth, the first side (namely perpendicular to the first side 10).Equally, the medial extremity 2031 of the 3rd hydraulic cylinder 203 is pivotally connected to the rear portion of the second side 11 of fuselage 101, make the 3rd hydraulic cylinder 203 can in (that is, along the plane at Fig. 2 and the 3 places) pivotable along the horizontal plane between position and the position parallel with the second side 11 with the 90 degree of angles in 11 one-tenth, the second side (namely perpendicular to the second side 11).In addition, the medial extremity 2021 of the second hydraulic cylinder 202 is flexibly connected with the first slide block 501, make the second hydraulic cylinder 202 can in (that is, along the plane at Fig. 2 and the 3 places) pivotable along the horizontal plane between position and the position parallel with the first side 10 with the 10 one-tenth 80 degree of angles in the first side.Equally, the medial extremity 2041 of the 4th hydraulic cylinder 204 is flexibly connected with the second slide block 502, make the 4th hydraulic cylinder 204 also can in (that is, along the plane at Fig. 2 and the 3 places) pivotable along the horizontal plane between position and the position parallel with the second side 11 with the 11 one-tenth 80 degree of angles in the second side.Those skilled in the art it is easily understood that, angle between first side 10 of described hydraulic cylinder and coal-winning machine 1 and the second side 11 is selected arbitrarily between can spending 0 to 90 as required, as long as can be formed with the triangular support configurations helping porpoise be carried out to effectively suppression.Preferably, under holding state described angle preferably in the scope of 30-80 degree.If the medial extremity of described first hydraulic cylinder 201 and described 3rd hydraulic cylinder 203 is all connected in described slide rail, angle so between first side 10 and the second side 11 of described four hydraulic cylinders and coal-winning machine 1 is 0 degree-when namely described shock preventing device is regained completely, described four hydraulic cylinders and two supporting toilets can be accommodated in described two slide rails, the lateral dimension of coal-winning machine 1 can not be increased, therefore can not interfere with other equipment in coal mine roadway.
Continue to consult Figure 4 and 5, the outboard end 2012 of the first hydraulic cylinder 201 and the outboard end 2022 of the second hydraulic cylinder 202 are connected with pivotable between the first supporting base 301, and between the outboard end 2042 of the outboard end 2032 of the 3rd hydraulic cylinder 203 and the 4th hydraulic cylinder 204 with the second supporting base 302 also pivotable be connected.Specifically, first hydraulic cylinder 201 and outboard end 2,012 second hydraulic cylinder 202 outboard end 2022 on be respectively arranged with the first pivot and the second pivot, and the first supporting base 301 is provided with the first axle sleeve 3012c and the second axle sleeve 3012b (as shown in Figure 6) that mate with described first pivot and the second pivot respectively.Equally, the outboard end 2032 of the 3rd hydraulic cylinder 203 and the outboard end 2042 of the 4th hydraulic cylinder 204 are respectively arranged with the 3rd pivot and the 4th pivot, and the second supporting base 302 are provided with the 3rd axle sleeve 3022c and the 4th axle sleeve 3022b that mate with described 3rd pivot and the 4th pivot respectively.Above-mentioned pivotable connects and makes described hydraulic cylinder can respectively around described first pivot, the second pivot, the 3rd pivot and the 4th pivot along the horizontal plane (namely, plane along Fig. 2 and 3 places) pivotable, thus change between described hydraulic cylinder under the expansion fit of described hydraulic cylinder and angle between the first side 10 of described hydraulic cylinder and coal-winning machine 1 and the second side 11, and then under the prerequisite of Support Position not changing described supporting base mobile coal-winning machine 1 therefore exempt frequent support and the trouble of centering.
Then consult Fig. 6 and 7, the first supporting base 301 comprises the first base plate 3011 for the sidewall 12 against coal mine roadway and the first connecting portion 3012 for being connected with the second hydraulic cylinder 202 with the first hydraulic cylinder 201.Described first axle sleeve 3012c and the second axle sleeve 3012b is arranged on the first connecting portion 3012, and adopts bulb 3012a to be connected between the first connecting portion 3012 with the first base plate 3011.In like manner, the second supporting base 302 comprises the second base plate 3021 and the second connecting portion 3022.Described 3rd axle sleeve 3022c and the 4th axle sleeve 3022b is arranged on the second connecting portion 3022, and the second connecting portion 3022 also adopts bulb 3022a to be connected with after the second base plate 3021.Those skilled in the art it is easily understood that, above-mentioned axle sleeve can be connected with the pivot on the outboard end of described hydraulic cylinder, thus make described hydraulic cylinder can around described axle sleeve or pivot, and described bulb 3012a and 3022a makes described base plate 3011 and 3021 can described connecting portion 3012 and 3022 universal rotational, thus contribute to adapting to scraggly coal mine roadway sidewall and being therefore convenient to stable support.
Finally consult Fig. 8, the figure shows the ratchet lock mechanism according to shock preventing device of the present utility model.For the sake of clarity, the parts such as hydraulic cylinder and supporting base are eliminated in Fig. 8.As shown in Figure 8, the first slide rail 401 comprises the first ratchet lock mechanism 4012 being arranged on 4011 places bottom it, and this locking mechanism 4012 is for fixing the position of the first slide block 501 on the first slide rail 401.Further, the second slide rail 402 comprises the second ratchet lock mechanism 4022 being arranged on 4021 places bottom it, and this locking mechanism 4022 is for fixing the position of the second slide block 502 on the second slide rail 402.More specifically, described locking mechanism 4012,4022 is the leaf springs with ratchet, in normal state, described ratchet projects in the first slide rail 401 and the second slide rail 402 from the opening (not shown) the bottom 4011,4021 of the first slide rail 401 and the second slide rail 402 under the elastic force effect of leaf spring.When the first slide block 501 and the second slide block 502 slide to the tail end of fuselage 101 on the first slide rail 401 and the second slide rail 402, described ratchet can be retracted under the pressure effect of described slide block, when described slide block crosses described ratchet, described ratchet can project into again in the first slide rail 401 and the second slide rail 402 under the elastic force effect of leaf spring, stop slide block back to move, thus lock the position of described slide block on slide rail.When described slide block need back to move-when namely moving up along the direction of Fig. 8, overcome the elastic force of leaf spring by other actuators-such as electromagnetic valve or motor or hydraulic motor, thus ratchet is inwardly retracted and therefore makes slide block successfully slide to the front end of fuselage 101.About this point, it is pointed out that described ratchet lock mechanism is only used to describe the problem and the exemplary mechanisms enumerated.When not exceeding principle of the present utility model, those skilled in the art also can adopt other locking mechanisms, and this does not deviate from protection domain of the present utility model.
In conjunction with above-described structure, those skilled in the art are it is easily understood that the length of the first hydraulic cylinder 201, second hydraulic cylinder 202, the 3rd hydraulic cylinder 203 and the 4th hydraulic cylinder 204 regulates by changing the size being applied to their hydraulic coupling.With the position of Fig. 2 for starting point, when coal-winning machine 1 needs to move forward-namely move up along the paper direction of Fig. 2 and 3, do not need change first supporting base 301 and the Support Position of the second supporting base 302 on the sidewall 12 and 13 of coal mine roadway, and only need moving and the first slide block 501 and the second slide block 502 are slided backward respectively in the first slide rail 401 and the second slide rail 402 with coal-winning machine 1 and fuselage 101 thereof, reduce hydraulic coupling to make described hydraulic cylinder 201 simultaneously, 202, 203 and 204 shrink the distance that also therefore adaptation coal-winning machine 1 moves between the fulcrum of the described hydraulic cylinder caused and the strong point of described supporting base on coal mine roadway sidewall changes.As mentioned above, when coal-winning machine 1 moves to target location, fix its position by above-mentioned locking mechanism 4012 and 4022 and therefore again form triangular support configurations.As can be seen here, when adopting braced structures of the present utility model, without the need to all again finding the Support Position of described supporting base when each mobile coal-winning machine 1, decreasing operation related to this and therefore saving the time, improve operating efficiency.
Although describe the technical solution of the utility model with reference to preferred embodiment; but those skilled in the art it is easily understood that; protection domain of the present utility model is not limited to these detailed description of the invention; when not departing from general principle of the present utility model; can split, combine or change described embodiment and concrete technical characteristic wherein, fractionation, combination or the technical scheme after changing will fall within protection domain of the present utility model.
Claims (7)
1. a coal-winning machine shock preventing device, this coal-winning machine comprises fuselage, motion portion, drive division and cutting units, motion portion is arranged on the bottom of fuselage, move in coal mine roadway for dragging coal-winning machine, drive division is arranged on the front of fuselage, cutting units is arranged on the front of drive division, and drive division operates to carry out cut operation to rib for driving cutting units
It is characterized in that, described coal-winning machine shock preventing device comprises:
Be arranged on the first hydraulic cylinder on the first side of described fuselage and the second hydraulic cylinder;
Be arranged on the 3rd hydraulic cylinder on the second side of described fuselage and the 4th hydraulic cylinder;
Connect the first supporting base of the outboard end of described first hydraulic cylinder and described second hydraulic cylinder; And
Connect the second supporting base of the outboard end of described 3rd hydraulic cylinder and described 4th hydraulic cylinder,
Wherein, operationally, first side of described first hydraulic cylinder, described second hydraulic cylinder and described fuselage forms three-legged structure, second side of described 3rd hydraulic cylinder, described 4th hydraulic cylinder and described fuselage also forms three-legged structure, and described first supporting base and described second supporting base are resisted against on the sidewall of coal mine roadway, vibration on described coal-winning machine front and back in operation and left and right directions can be effectively suppressed
Described coal-winning machine shock preventing device also comprises the first slide rail be arranged on the first side of described fuselage and the second slide rail be arranged on the second side of described fuselage, wherein, described second hydraulic cylinder comprises the first slide block set within it on side, the medial extremity of described second hydraulic cylinder can be moved on described first slide rail, and described 4th hydraulic cylinder also comprises the second slide block set within it on side, the medial extremity of described 4th hydraulic cylinder can be moved on described second slide rail
Wherein, the outboard end of described first hydraulic cylinder and described second hydraulic cylinder is connected with pivotable between described first supporting base, and the outboard end of described 3rd hydraulic cylinder and described 4th hydraulic cylinder with between described second supporting base also pivotable be connected.
2. coal-winning machine shock preventing device according to claim 1, is characterized in that, described first slide rail comprises the first ratchet lock mechanism be arranged on bottom it, and this first ratchet lock mechanism is for the fixing position of described first slide block on described first slide rail; And
Described second slide rail comprises the second ratchet lock mechanism be arranged on bottom it, and this second ratchet lock mechanism is for the fixing position of described second slide block on described second slide rail.
3. coal-winning machine shock preventing device according to claim 1, is characterized in that, the medial extremity of described first hydraulic cylinder is pivotally connected to the rear portion of the first side of described fuselage, and the medial extremity of described second hydraulic cylinder is pivotally connected on described first slide block; And
The medial extremity of described 3rd hydraulic cylinder is pivotally connected to the rear portion of the second side of described fuselage, and the medial extremity of described 4th hydraulic cylinder is pivotally connected on described second slide block.
4. coal-winning machine shock preventing device according to claim 1, it is characterized in that, the medial extremity of described first hydraulic cylinder is connected to the rear portion of the first side of described fuselage, makes described first hydraulic cylinder can to become between the position of 90 degree of angles and the position parallel with described first side pivotable along the horizontal plane with described first side; And
The medial extremity of described 3rd hydraulic cylinder is connected to the rear portion of the second side of described fuselage, makes described 3rd hydraulic cylinder can to become between the position of 90 degree of angles and the position parallel with described second side pivotable along the horizontal plane with described second side.
5. coal-winning machine shock preventing device according to claim 1, it is characterized in that, the medial extremity of described second hydraulic cylinder is flexibly connected with described first slide block, makes described second hydraulic cylinder can to become between the position of 80 degree of angles and the position parallel with described first side pivotable along the horizontal plane with described first side; And
The medial extremity of described 4th hydraulic cylinder is flexibly connected with described second slide block, makes described 4th hydraulic cylinder can to become between the position of 80 degree of angles and the position parallel with described second side pivotable along the horizontal plane with described second side.
6. coal-winning machine shock preventing device according to claim 1, it is characterized in that, the outboard end of described first hydraulic cylinder and described second hydraulic cylinder is respectively arranged with the first pivot and the second pivot, and described first supporting base is provided with the first axle sleeve and the second axle sleeve that mate with described first pivot and described second pivot respectively; And
The outboard end of described 3rd hydraulic cylinder and described 4th hydraulic cylinder is respectively arranged with the 3rd pivot and the 4th pivot, and described second supporting base is provided with the 3rd axle sleeve and the 4th axle sleeve that mate with described 3rd pivot and described 4th pivot respectively.
7. coal-winning machine shock preventing device according to claim 6, it is characterized in that, described first supporting base comprises the first base plate and the first connecting portion, described first axle sleeve and described second axle sleeve are arranged on described first connecting portion, and adopt bulb to be connected between described first connecting portion with described first base plate; And
Described second supporting base comprises the second base plate and the second connecting portion, and described 3rd axle sleeve and described 4th axle sleeve are arranged on described second connecting portion, and also adopt bulb to be connected between described second connecting portion with described second base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420811431.1U CN204344124U (en) | 2014-12-18 | 2014-12-18 | Coal-winning machine shock preventing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420811431.1U CN204344124U (en) | 2014-12-18 | 2014-12-18 | Coal-winning machine shock preventing device |
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| CN204344124U true CN204344124U (en) | 2015-05-20 |
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| CN201420811431.1U Withdrawn - After Issue CN204344124U (en) | 2014-12-18 | 2014-12-18 | Coal-winning machine shock preventing device |
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| Country | Link |
|---|---|
| CN (1) | CN204344124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533410A (en) * | 2014-12-18 | 2015-04-22 | 河北工程大学 | Anti-vibration device of coal mining machine |
-
2014
- 2014-12-18 CN CN201420811431.1U patent/CN204344124U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533410A (en) * | 2014-12-18 | 2015-04-22 | 河北工程大学 | Anti-vibration device of coal mining machine |
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