Height adjusting and supporting device of coal mining machine
By using active and follow-up adjustment mechanisms, combined with hydraulic rods and tilt sensors, the mechanical damage and rollover problems caused by the fixed height of the coal mining machine have been solved, enabling stable operation of the coal mining machine in complex environments and extending equipment life.
Patent Information
- Application Number
- CN202520188184.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-06
AI Technical Summary
The existing coal mining machine support device has a fixed height, which makes it difficult to adapt to different coal mine heights and complex coal mining environments, resulting in mechanical damage and rollover. Furthermore, the guide shoes are prone to wear when used on irregular base plates.
A height adjustment support device for a coal mining machine, comprising an active adjustment mechanism and a follow-up adjustment mechanism, was designed. The height of the coal mining machine is adjusted in real time through hydraulic rods and tilt sensors, and the track wheels are driven to roll and move by a drive motor and gearbox, thereby reducing friction and wear.
It enables flexible adjustment of the height of the coal mining machine, prevents tipping, extends equipment life, reduces frictional wear, and improves the stability and safety of the coal mining machine in complex environments.
Smart Images
Figure CN223707625U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coal mining technical field, concretely relates to a height adjusting support device of coal mining machine. BACKGROUND
[0002] The coal mining machine is one of the main coal mining equipments of the fully mechanized coal mining face, and the coal in the coal seam can be cut, broken and transported to the conveyor through the coal mining machine, so that the coal blocks are transported to the ground.
[0003] The existing coal mining machine support device is fixed in height, and the operation is not convenient when the coal mining machine is used in coal mines with different heights; during the use of the coal mining machine, the height of the coal mining machine cannot be changed, the complex coal mining environment cannot be coped with, the support leg is not easy to replace underground, and it takes a long time to replace, and mechanical damage is easy to occur during installation, which causes the coal mining machine to be damaged, brings economic losses to the user, although a rocker arm height adjusting structure is used in recent years, the height adjusting rocker arm structure is easy to shake.
[0004] In addition, since the coal mining working face bottom plate of the coal mining machine is irregular, sometimes the inclination occurs, which causes the two side tracks of the coal mining machine to be not at the same height position, when the horizontal height difference of the two side tracks is too large, the coal mining machine is prone to side turning, when the horizontal height difference of the two sides reaches a certain value, the guide sliding shoe on the side of the coal mining machine walking gear support is in contact with the track, and the wear of the guide sliding shoe is aggravated. UTILITY MODEL CONTENTS
[0005] In view of the defects of the prior art, the utility model provides a height adjusting support device of coal mining machine, which can conveniently adjust the height of the whole coal mining machine, and can also adaptively adjust the height of the coal mining machine on both sides of the track according to the inclination of the coal mining working face, so that the side turning of the coal mining machine is avoided.
[0006] The utility model is realized through the following technical schemes:
[0007] The utility model provides a height adjusting support device of coal mining machine, which is installed between the bottom surface of the coal mining machine body and the scraper conveyor, a group of parallel tracks are arranged on the scraper conveyor, and the height adjusting support device comprises a driving adjusting mechanism and a following adjusting mechanism,
[0008] The driving adjusting mechanism comprises oppositely arranged upper supports and lower supports, left supports and right supports, the two ends of the upper supports are hingedly connected with the upper ends of the left supports and the upper ends of the right supports through upper supporting rods, the two ends of the lower supports are hingedly connected with the lower ends of the left supports and the lower ends of the right supports through lower supporting rods, the first hydraulic rods are connected between the left supports and the right supports, the side surfaces of the upper supports and the lower supports are respectively connected with locking seats, the fixed screw rods are inserted and fixed between the two locking seats, and the two ends of the fixed screw rods are respectively connected with the locking seats through the nuts;
[0009] The follow-up adjusting mechanism comprises a fixed outer sleeve and a follow-up inner sleeve connected in vertical sliding mode, the fixed outer sleeve is hinged to the bottom surface of the lower support, the bottom surface of the follow-up inner sleeve is rotatably installed with a track wheel through a wheel frame and a wheel shaft, a second hydraulic rod is arranged in the cavity between the fixed outer sleeve and the follow-up inner sleeve, the two ends of the second hydraulic rod are connected with the inner top wall of the fixed outer sleeve and the inner bottom wall of the follow-up inner sleeve respectively, an inclination sensor is embeddedly installed at the end portion of the wheel shaft of the track wheel, and the inclination sensor is electrically connected with the controller of the second hydraulic rod.
[0010] Further, the bottom surface of the follow-up inner sleeve is respectively connected with an obliquely arranged coal shoveling plate before and after the track wheel walking direction.
[0011] The bottom surface of the follow-up inner sleeve is respectively connected with a coal shoveling plate before and after the track wheel walking direction, the coal shoveling plate can shovel the coal falling on the track to avoid the unstable operation of the track wheel caused by the contact with the track wheel.
[0012] Further, the middle portion of the coal shoveling plate is formed with a convex rib.
[0013] The middle portion of the coal shoveling plate is formed with a convex rib, which can be used to disperse the coal in front of the convex rib to the two sides of the convex rib, so that the coal can fall into the drag chain for conveying, and meanwhile, the coal accumulation in front of the coal shoveling plate is effectively prevented, and the situation of increasing the moving resistance of the coal mining machine is avoided.
[0014] Further, the inclination sensor is installed on the wheel shaft of the track wheel on the coal mining side.
[0015] The inclination sensor is installed on the end surface of the wheel shaft of the track wheel on the coal mining side, and is used to monitor the height inclination angle change of the track on the coal mining side.
[0016] Further, a driving mechanism is installed on the wheel frame away from the track wheel on the coal mining side, the driving mechanism comprises a driving motor installed on the inner side of the wheel frame, a transmission wheel set is drivingly connected to the output end of the driving motor, a gear box is installed on the outer side of the wheel frame, a first gear set and a second gear set are installed in the gear box and are in meshing mode, the first gear set is drivingly connected with the transmission wheel set, and the second gear set is drivingly connected with the wheel shaft.
[0017] The driving motor drives the first gear set and the second gear set in the gear box to rotate through the transmission wheel set, the wheel shaft is driven to rotate after the gear set in the gear box is speed-changed, and then the whole coal mining machine is driven to move on the track to mine coal, and the rolling friction mode of the track wheel is adopted compared with the sliding friction mode of the transmission, so that the friction is effectively reduced, and the abrasion between the equipment is reduced.
[0018] Further, a fixed plate is connected above the track wheel on the inner side of the wheel frame, and a pneumatic brake pad matched with the track wheel is installed on the fixed plate.
[0019] By installing the fixed plate in the wheel carrier, the pneumatic brake pad is installed by the fixed plate, the track wheel can be braked, and the whole coal mining machine is controlled to brake and slow down.
[0020] The utility model discloses the beneficial effect that:
[0021] The utility model discloses a height adjustment mechanism of coal mining machine, including the coal mining machine body, the coal mining machine body bottom surface installs the track wheel, and the track wheel is connected with the gear box and drive motor, and the drive motor is connected with the hydraulic rod, and the hydraulic rod is connected with the driven adjusting mechanism, and the driven adjusting mechanism is connected with the active adjusting mechanism, and the active adjusting mechanism is connected with the fixed screw rod and nut.
[0022] When the coal mining machine is running, the working plane of the coal mining machine can be monitored by the inclination sensor arranged on the coal mining side, the inclination data is monitored by the inclination sensor, and after the inclination reading exceeds the preset threshold, the second hydraulic rod is started to drive the relative sliding between the fixed outer sleeve and the driven inner sleeve by the extension of the second hydraulic rod, the length of the driven inner sleeve in the fixed outer sleeve is adjusted, and the situation that the height of the two sides of the track is not consistent is adapted, the height of the coal mining machine body on the side with lower height is adjusted by the real-time monitoring and following of the driven adjusting mechanism, and the situation that the coal mining machine overturns due to the inconsistent height of the two sides of the track can be effectively prevented.
[0023] The utility model discloses a coal mining machine's body bottom surface designs uses the track wheel, and installs and cooperates with its gear box and drive motor, utilizes drive motor cooperation gear box drive axle and drives track wheel to roll on the track and moves and drives coal mining machine whole body movement, compared with traditional sliding friction movement mode, effectively reduced the friction of movement while reducing the friction loss between the body and the supporting plate conveyor, effectively prolongs the overall service life. ACCURACY OF DRAWINGS
[0024] Figure 1 It is the whole structure schematic drawing of the utility model.
[0025] Figure 2 It is Figure 1 It is the enlarged schematic view of A in the utility model.
[0026] Figure 3 It is the cross section schematic view of the driven adjusting mechanism in the utility model.
[0027] Figure 4 It is the structure schematic view of the drive mechanism in the utility model.
[0028] Figure 5 It is the installation schematic view of the coal shovel plate and the track in the utility model.
[0029] As shown in the drawings:
[0030] 1, coal mining machine body, 2, active adjustment mechanism, 3, follow-up adjustment mechanism, 4, track, 5, upper support, 6, lower support, 7, left support, 8, right support, 9, upper connecting rod, 10, lower connecting rod, 11, first hydraulic rod, 12, locking seat, 13, fixed screw, 14, nut, 15, fixed sleeve, 16, follow-up inner sleeve, 17, coal shovel plate, 18, track wheel, 19, gear box, 20, second hydraulic rod, 21, sliding groove, 22, sliding block, 23, wheel frame, 24, drive motor, 25, transmission assembly, 26, first gear set, 27, second gear set, 28, wheel shaft, 29, convex rib. DETAILED DESCRIPTION
[0031] In order to clearly illustrate the technical features of the present scheme, the present scheme will be described below through specific embodiments.
[0032] A coal mining machine height adjustment support device is installed between the bottom surface of the coal mining machine body 1 and the scraper conveyor, a set of parallel tracks 4 are arranged on the scraper conveyor, and the device comprises an active adjustment mechanism 2 and a follow-up adjustment mechanism 3.
[0033] The active adjustment mechanism 2 comprises oppositely arranged upper and lower supports 5 and 6, and left and right supports 7 and 8. The two ends of the upper support 5 are hingedly connected to the upper ends of the left and right supports 7 and 8 through an upper support rod 9, and the two ends of the lower support 6 are hingedly connected to the lower ends of the left and right supports 7 and 8 through a lower support rod 10. A first hydraulic rod 11 is connected between the left and right supports 7 and 8. The side surfaces of the upper and lower supports 5 and 6 are respectively connected to locking seats 12. A fixed screw 13 is inserted and fixed between the two locking seats 12, and the two ends of the fixed screw 13 are respectively connected to the locking seats 12 through nuts 14.
[0034] The follow-up adjustment mechanism 3 comprises a fixed sleeve 15 and a follow-up inner sleeve 16 which are vertically slidably connected. In order to improve the stability of the sliding connection, a sliding groove 21 is formed vertically on the inner wall of the fixed sleeve 15. A sliding block 22 is formed on the side wall of the follow-up inner sleeve 16 opposite to the sliding groove 21, and the sliding block 22 is located in the sliding groove 21 and slidably connected with the sliding groove 21. The fixed sleeve 15 is hingedly connected to the bottom surface of the lower support 6. The track wheels 18 are rotatably installed on the bottom surface of the follow-up inner sleeve 16 through a wheel frame 23 and a wheel shaft 28. The coal shovel plates 17 are respectively connected to the bottom surface of the follow-up inner sleeve 16 in front of and behind the running direction of the track wheels 18, and the coal shovel plates 17 are arranged obliquely. A convex rib 29 is formed in the middle of the coal shovel plate 17 for dispersing coal blocks to both sides.
[0035] The second hydraulic rod 20 is arranged in the cavity between the fixed outer sleeve 15 and the follow-up inner sleeve 16, and the two ends of the second hydraulic rod 20 are connected with the inner top wall of the fixed outer sleeve 15 and the inner bottom wall of the follow-up inner sleeve 16 respectively, the wheel shaft 28 end of the track wheel 18 is embedded with an inclination sensor, the inclination sensor is installed on the wheel shaft 28 of the track wheel 18 on the coal mining side, and the inclination sensor is electrically connected with the controller of the second hydraulic rod 20.
[0036] The driving mechanism is installed on the wheel carrier 23 away from the track wheel 18 on the coal mining side, the driving mechanism comprises a driving motor 24 installed on the inner side of the wheel carrier 23, the output end of the driving motor 24 is drivingly connected with a transmission wheel set 25, a gear box 19 is installed on the outer side of the wheel carrier 23, a first gear set 26 and a second gear set 27 are installed in the gear box 19 and are in meshing connection, the first gear set 26 is drivingly connected with the transmission wheel set 25, and the second gear set 27 is drivingly connected with the wheel shaft 28.
[0037] The fixed plate is connected above the track wheel 18 on the inner side of the wheel carrier 23, and a pneumatic brake pad matched with the track wheel 18 is installed on the fixed plate.
[0038] In use, when the overall height of the coal mining machine needs to be adjusted before the coal mining machine runs, taking the height reduction of the coal mining machine as an example, the first hydraulic rod 11 is started, the first hydraulic rod 11 is used to exert force on the left support 7 and the right support 8, at this time, the nut 14 on the fixed screw rod 13 is rotated, the deformation restriction of the active adjustment mechanism 2 is released, the piston rod of the first hydraulic rod 11 is used to push the left support 7 and the right support 8 away from each other, and then the upper connecting rod 9 and the lower connecting rod 10 drive the upper support 5 and the lower support 6 to move close to each other, so that the overall height of the coal mining machine body 1 is reduced.
[0039] When the coal mining machine is running, the coal mining plane will have inclination changes, the inclination changes of the track wheel 18 are constantly monitored by using the inclination sensor of the end surface of the wheel shaft 28, the outer side track 4 far from the coal mining side is used as a reference, when the height of the inner side track 4 close to the coal mining side is higher than the height of the outer side track 4 by a certain value, at this time, the inclination sensor can send a signal to the second hydraulic rod 20, the second hydraulic rod 20 controls its extension and retraction action through the controller, for adjusting the length of the follow-up inner sleeve 16 in the fixed outer sleeve 15, and further for adjusting the height of the machine body on the low height side, so that the height of the machine body on the high height side is kept within a certain height difference (the height value can be monitored by the angle data of the inclination sensor through the angle conversion technology), in the working process of the coal mining machine, the inclination sensor monitors the inclination in real time, and the second hydraulic rod 20 is controlled in real time through the controller, so that it can follow the height changes of the coal mining face and adjust the height of the machine body on one side of the coal mining machine in real time, for keeping the center of gravity of the coal mining machine stable, effectively preventing the coal mining machine from overturning.
[0040] In the moving coal mining process of the coal mining machine, the driving motor 24 is started to transmit power to the wheel shaft 28 through the transmission assembly 25 and the gear box 19, the wheel shaft 28 drives the track wheel 18 to roll on the track 4, and then drives the whole coal mining machine to move and mine coal, the front and back of the moving direction of the track wheel 18 in the coal mining process constantly pushes the coal mine falling on the track to the two sides by using the coal shoveling plate 17, so that the coal mine is separated from the track 4, effectively preventing the rolling of the coal block on the track wheel 18, and improving the stability of the whole movement.
[0041] Of course, the above description is not limited to the above examples, and the technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here; the above embodiments and drawings are only used to illustrate the technical scheme of the utility model and are not limited to the utility model, the preferred embodiments of the utility model are described in detail, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.
Claims
1. A height adjustment support device for a coal mining machine, installed between the bottom surface of the coal mining machine body and a scraper conveyor, wherein a set of parallel tracks is provided on the scraper conveyor, characterized in that: Including active adjustment mechanisms and follow-up adjustment mechanisms, The active adjustment mechanism includes an upper support and a lower support facing each other, as well as a left support and a right support. The two ends of the upper support are hinged to the upper ends of the left support and the upper ends of the right support respectively via an upper support rod. The two ends of the lower support are hinged to the lower ends of the left support and the lower ends of the right support respectively via a lower support rod. A first hydraulic rod is connected between the left support and the right support. Locking seats are connected to the sides of the upper support and the lower support respectively. A fixing screw is inserted between the two locking seats, and the two ends of the fixing screw are connected to the locking seats respectively via nuts. The follow-up adjustment mechanism includes a fixed outer sleeve and a follow-up inner sleeve that are vertically slidably connected. The fixed outer sleeve is hinged to the bottom surface of the lower support. A track wheel is rotatably mounted on the bottom surface of the follow-up inner sleeve through a wheel frame and axle. A second hydraulic rod is provided in the cavity between the fixed outer sleeve and the follow-up inner sleeve. The two ends of the second hydraulic rod are respectively connected to the inner top wall of the fixed outer sleeve and the inner bottom wall of the follow-up inner sleeve. An inclination sensor is embedded in the axle end of the track wheel. The inclination sensor is electrically connected to the controller of the second hydraulic rod.
2. The height adjustment support device for a coal mining machine according to claim 1, characterized in that: The bottom surface of the follower inner sleeve is connected to inclined coal shovel plates in front of and behind the track wheel in the direction of travel.
3. The height adjustment support device for a coal mining machine according to claim 2, characterized in that: The coal shovel plate has a raised ridge in the middle.
4. The height adjustment support device for a coal mining machine according to claim 1, characterized in that: The tilt sensor is installed on the axle of the track wheel on the coal mining side.
5. The height adjustment support device for a coal mining machine according to claim 1, characterized in that: A drive mechanism is installed on the wheel frame of the track wheel away from the coal mining side. The drive mechanism includes a drive motor installed inside the wheel frame. The output end of the drive motor is connected to a transmission wheel set. A gearbox is installed on the outside of the wheel frame. A first gear set and a second gear set that mesh with each other are installed inside the gearbox. The first gear set is connected to the transmission wheel set, and the second gear set is connected to the wheel axle.
6. The height adjustment support device for a coal mining machine according to claim 5, characterized in that: A fixing plate is connected to the inside of the wheel frame above the track wheel, and a pneumatic brake pad that matches the track wheel is installed on the fixing plate.