CN109799080B - Hydraulic support test device - Google Patents
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- CN109799080B CN109799080B CN201910009452.9A CN201910009452A CN109799080B CN 109799080 B CN109799080 B CN 109799080B CN 201910009452 A CN201910009452 A CN 201910009452A CN 109799080 B CN109799080 B CN 109799080B
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Abstract
The invention discloses a hydraulic support test device, relates to the technical field of hydraulic support tests, and is used for simulating the working condition of an inclined coal seam and detecting the anti-falling and anti-skid performance, stability and reliability of a hydraulic support in the inclined coal seam. The hydraulic support test device comprises a carrier roller device fixedly arranged on a foundation, a roller disc rotatably arranged on the carrier roller device, and a main body frame arranged on the side surface of the roller disc; the main body frame comprises a base fixedly connected with the roller disc, a top beam fixedly connected with the roller disc and an upright column connected between the base and the top beam; the hydraulic support test device further comprises a movable platform, a guide rail and a loading platform, wherein the movable platform is connected with the stand column in a sliding mode, the guide rail is arranged on the movable platform and is perpendicular to the stand column, the loading platform is connected with the guide rail in a sliding mode, and a test space for testing the hydraulic support is formed between the loading platform and the base. Through the technical scheme, the hydraulic support to be tested can rotate to the inclination angle corresponding to the inclined coal seam, and the hydraulic support is subjected to combined loading.
Description
Technical Field
The invention relates to the technical field of hydraulic support tests, in particular to a hydraulic support test device.
Background
In the field of coal mining, inclined coal seams place higher demands on mining technology than ordinary coal seams. For example, in the aspect of supporting a coal face, a large-inclination-angle hydraulic support is required to be used as supporting equipment, and the support has the anti-falling and anti-skid properties which are not possessed by a common support, so that the support can well adapt to the requirements of inclined coal seam mining. Therefore, the usage amount of the hydraulic bracket with a large inclination angle is increased year by year.
The hydraulic support test device is used as special equipment for hydraulic support detection and inspection, and a loading test needs to be carried out on the hydraulic support by simulating the actual working condition of the underground coal mine. However, the existing hydraulic support test device is mainly of a frame structure and does not have a rotatable function, and a compound loading test cannot be performed on the large-inclination-angle hydraulic support under a certain inclination angle, so that the use working condition of an inclined coal bed cannot be simulated, and further the large-inclination-angle hydraulic support cannot be subjected to anti-falling and anti-skidding performance test analysis, and the reliability and stability of the large-inclination-angle hydraulic support cannot be checked.
Disclosure of Invention
The invention aims to provide a hydraulic support test device which is used for simulating the working condition of an inclined coal seam, realizing a composite loading test on a tested hydraulic support rotating to a certain angle and detecting the anti-falling and anti-skid performance, stability and reliability of the hydraulic support.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention provides a hydraulic support test device, which comprises a carrier roller device fixedly arranged on a foundation, a roller disc rotatably arranged on the carrier roller device and a main body frame arranged on the side surface of the roller disc, wherein the carrier roller device comprises a first roller and a second roller; the main body frame comprises a base fixedly connected with the roller disc, a top beam fixedly connected with the roller disc and an upright column connected between the base and the top beam; the hydraulic support test device further comprises a movable platform, a guide rail and a loading platform, wherein the movable platform is connected with the stand column in a sliding mode, the guide rail is arranged on the movable platform and is perpendicular to the stand column, the loading platform is connected with the guide rail in a sliding mode, and a test space for testing the hydraulic support is formed between the loading platform and the base.
Optionally, the movable platform comprises a first part and a second part which are arranged at intervals along the axial direction of the upright, and both the first part and the second part are slidably mounted on the upright; the hydraulic support test device also comprises a heightening oil cylinder connected between the base and the first part, and a first external loading oil cylinder connected between the first part and the second part; the second part is connected with the loading platform through a guide rail.
Optionally, a plurality of first pin holes are formed in the upright column, the plurality of first pin holes are sequentially arranged at intervals along the axial direction of the upright column, and the axial line of each first pin hole is perpendicular to the axial line of the upright column; the first part is provided with a second pin hole matched with the first pin hole, and the second part is provided with a third pin hole matched with the first pin hole; the hydraulic support test device further comprises a first pin connected with the first pin hole and the first pin hole, and a second pin connected with the first pin hole and the third pin hole.
Optionally, the hydraulic support test device further comprises at least one second outer loading cylinder connected with the loading platform; each second outer loading oil cylinder comprises a first telescopic rod parallel to the guide rail, and the extending end of the first telescopic rod is connected with the upright post.
Optionally, the hydraulic support test device further comprises at least one third external loading oil cylinder connected with the at least one second external loading oil cylinder in a one-to-one correspondence manner; each third external loading oil cylinder is positioned at one side of the test space, each third external loading oil cylinder comprises a second telescopic rod perpendicular to the first telescopic rod and the upright post, and the extending end of the second telescopic rod is aligned to the other side of the test space.
Optionally, the number of the roller discs is two, and the main body frame is connected between the two roller discs; two sides of the longitudinal center line of each roller disc are respectively provided with a roller device, each roller device comprises at least one pair of rollers, and the two rollers in each pair of rollers are arranged at intervals along the circumferential direction of the roller disc.
Optionally, each carrier roller device further comprises a support fixed on the foundation and a bracket hinged with the support and in an isosceles triangle stress state; the support is arranged at the top angle of the support, two bottom angles of the support are respectively hinged with a pair of rollers, and the two rollers in each pair of rollers are arranged at intervals along the circumferential direction of the roller disc.
Optionally, the center of each roller disc is provided with an object placing opening communicated with the test space.
Optionally, a rack is arranged on the outer edge of each roller disc, and the rack is arranged in a range extending upwards from the longitudinal center of the bottom of the roller disc by 90 degrees along the periphery of the roller disc; the hydraulic support testing device further comprises two driving motors fixedly arranged on the foundation, and each driving motor is connected with a rack on one roller disc through a gear reduction mechanism so as to drive the corresponding roller disc to rotate relative to the carrier roller device.
Optionally, two sides of the longitudinal center line of each roller disc are respectively provided with a braking device fixedly arranged on the foundation; the braking device is provided with a telescopic locking block which can move to a position between two adjacent teeth on the rack so as to limit the rotation of the corresponding roller disc relative to the carrier roller device.
Compared with the prior art, the hydraulic support test device provided by the invention has the following beneficial effects:
according to the hydraulic support test device provided by the invention, the roller device is fixedly arranged on the foundation, and the roller disc is rotatably arranged on the roller device, so that the roller disc can rotate on the roller device. Through locating the side of roller dish with main body frame, main body frame includes the base with roller dish fixed connection, with roller dish fixed connection's back timber, and connect the stand between base and the back timber, makes main body frame can rotate on bearing roller device along with the roller dish together.
This hydraulic support test device still includes the movable platform with stand sliding connection, locate on the movable platform and the guide rail of perpendicular to stand, and with guide rail sliding connection's loading platform, form the test space who is used for testing hydraulic support between loading platform and the base, make the hydraulic support that is tested in the test space can rotate on bearing roller device along with the roller dish together to make the hydraulic support that is tested can rotate to the inclination that corresponds to the inclined coal seam.
Because the loading platform can move towards the direction close to or far away from the base along with the movable platform, the loading platform can load the hydraulic support in the test space in the vertical direction. The guide rail perpendicular to the stand column is arranged on the movable platform, and the loading platform is connected with the guide rail in a sliding mode, so that the loading platform can move towards the direction perpendicular to the stand column relative to the movable platform, and the hydraulic support in the test space can be loaded in the horizontal direction through the loading platform. This hydraulic support test device has realized simulation inclined coal seam operating mode, can detect hydraulic support prevent down in the inclined coal seam, skid resistance ability, and stability and reliability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic structural diagram of a hydraulic mount test apparatus according to an embodiment of the present invention;
FIG. 2 shows a schematic structural diagram of a hydraulic mount test apparatus according to another embodiment of the present invention;
FIG. 3 shows a schematic structural view at the hydraulic mount test apparatus A in FIG. 2;
FIG. 4 shows a schematic structural diagram of a hydraulic mount test apparatus according to yet another embodiment of the present invention;
FIG. 5 shows a schematic structural view at the hydraulic mount test device B in FIG. 4;
fig. 6 shows a schematic structural diagram of a hydraulic bracket testing device according to a further embodiment of the invention.
Reference numerals:
102-idler unit, 104-roller disk, 106-body frame,
108-base, 110-top beam, 112-upright,
114-movable platform, 116-loading platform, 118-first part,
120-second section, 122-raise cylinder, 124-first external load cylinder,
126-guide rail, 128-drive motor, 130-brake,
132-the fixed seat, 134-the first pin hole, 136-the third pin hole,
138-first pin, 140-second pin, 142-second external load cylinder,
144-a first telescopic rod, 146-a third external loading oil cylinder, 148-a second telescopic rod,
150-mounting groove, 152-rack, 154-gear reduction mechanism.
Detailed Description
For the sake of understanding, the hydraulic bracket testing device provided by the embodiment of the invention is described in detail below with reference to the attached drawings.
Referring to fig. 1 to 3, the hydraulic bracket testing apparatus provided by the embodiment of the present invention includes an idler unit 102 fixedly disposed on a base, a roller plate 104 rotatably mounted on the idler unit 102, and a main body frame 106 disposed at a side of the roller plate 104. The body frame 106 includes a base 108 fixedly coupled to the roller plate 104, a top beam 110 fixedly coupled to the roller plate 104, and a post 112 coupled between the base 108 and the top beam 110. The hydraulic support test device further comprises a movable platform 114 connected with the upright column 112 in a sliding mode, a guide rail 126 arranged on the movable platform 114 and perpendicular to the upright column 112, and a loading platform 116 connected with the guide rail 126 in a sliding mode, wherein a test space for testing the hydraulic support is formed between the loading platform 116 and the base 108.
According to the hydraulic bracket test device provided by the invention, the carrier roller device 102 is fixedly arranged on a base, and the roller disc 104 is rotatably arranged on the carrier roller device 102, so that the roller disc 104 can rotate on the carrier roller device 102. By providing the body frame 106 at the side of the roller plate 104, the body frame 106 includes a base 108 fixedly connected to the roller plate 104, a top beam 110 fixedly connected to the roller plate 104, and an upright 112 connected between the base 108 and the top beam 110, such that the body frame 106 can rotate with the roller plate 104 on the idler device 102.
The hydraulic support test device further comprises a movable platform 114 connected with the upright column 112 in a sliding mode, a guide rail 126 arranged on the movable platform 114 and perpendicular to the upright column 112, and a loading platform 116 connected with the guide rail 126 in a sliding mode, a test space for testing the hydraulic support is formed between the loading platform 116 and the base 108, the tested hydraulic support in the test space can rotate on the carrier roller device 102 along with the roller disc 104, and therefore the tested hydraulic support can rotate to the inclination angle corresponding to the inclined coal seam.
Since the loading platform 116 can move together with the movable platform 114 toward or away from the base 108, the hydraulic support in the test space can be loaded in the vertical direction by the loading platform 116. The guide rail 126 perpendicular to the upright 112 is arranged on the movable platform 114, and the loading platform 116 is connected with the guide rail 126 in a sliding manner, so that the loading platform 116 can also move relative to the movable platform 114 in a direction perpendicular to the upright 112, and the loading of the hydraulic support in the test space in the horizontal direction by the loading platform 116 is realized. This hydraulic support test device has realized simulation inclined coal seam operating mode, can detect hydraulic support prevent down in the inclined coal seam, skid resistance ability, and stability and reliability.
Illustratively, the tested hydraulic support is a large-inclination-angle hydraulic support, and devices for increasing friction force are arranged on the upper top surface and the lower top surface of the large-inclination-angle hydraulic support. When the large-inclination-angle hydraulic support is tested, the large-inclination-angle hydraulic support is firstly tightly supported between the base 108 and the loading platform 116, then the roller disc 104 is rotated to enable the large-inclination-angle hydraulic support to rotate to an inclination angle corresponding to an inclined coal seam, and finally the large-inclination-angle hydraulic support is subjected to composite loading in a direction perpendicular to the upper top surface and in a direction parallel to the upper top surface through the loading platform 116.
It is worth pointing out that the hydraulic support is firstly subjected to a loading force perpendicular to the upper top surface of the hydraulic support under actual working conditions, and is also often subjected to a loading force parallel to the upper top surface when the coal seam supported by the upper top surface of the hydraulic support is broken. The hydraulic support test device can perform composite loading in the direction perpendicular to the upper top surface and the direction parallel to the upper top surface, and can better simulate the actual working condition of the hydraulic support in the coal bed.
In some embodiments, referring to fig. 1 and 2, movable platform 114 includes a first portion 118 and a second portion 120 spaced apart along an axial direction of upright 112, each of first portion 118 and second portion 120 slidably mounted to upright 112; the hydraulic mount test apparatus further includes an elevation cylinder 122 connected between the base 108 and the first portion 118, and a first external load cylinder 124 connected between the first portion 118 and the second portion 120; the second portion 120 is coupled to the loading platform 116 via a rail 126.
In this embodiment, the movable platform 114 includes a first portion 118 and a second portion 120 spaced apart from each other along the axial direction of the upright 112, the first portion 118 is slidably mounted on the upright 112, and a height-adjusting cylinder 122 is disposed between the base 108 and the first portion 118, and the height-adjusting cylinder 122 can be used to drive the first portion 118 to slide on the upright 112, so that the first portion 118 can move in a direction away from or close to the base 108. The loading platform 116 and the second portion 120 are connected through a guide rail 126, the second portion 120 is slidably mounted on the upright 112, a first external loading cylinder 124 is arranged between the first portion 118 and the second portion 120, the second portion 120 can slide on the upright 112 through the first external loading cylinder 124, and the second portion 120 and the loading platform 116 can move in a direction away from or close to the base 108 relative to the first portion 118, so that the hydraulic support to be tested in the test space can be stably and reliably loaded in a direction perpendicular to the upper top surface of the hydraulic support.
Illustratively, referring to FIG. 2, the first portion 118, the second portion 120, and the loading platform 116 are disposed in a distal-to-proximal sequence relative to the base 108.
Illustratively, the number of pillars 112 is 4, which are arranged in a rectangular array at four corners of the base 108. A heightening cylinder 122 is arranged on the periphery of each upright column 112.
Illustratively, the number of the first outer load cylinders 124 is at least two, which are in a rectangular array or circumferential array.
In some embodiments, referring to fig. 3 and 4, a plurality of first pin holes 134 are provided on the pillar 112, the plurality of first pin holes 134 are sequentially spaced along the axial direction of the pillar 112, and the axis of each first pin hole 134 is perpendicular to the axial direction of the pillar 112; a second pin hole matched with the first pin hole 134 is formed in the first part 118, and a third pin hole 136 matched with the first pin hole 134 is formed in the second part 120; the hydraulic mount test apparatus also includes a first pin 138 connecting the first pin hole 134 and the first pin hole 134, and a second pin 140 connecting the first pin hole 134 and the third pin hole 136.
In this embodiment, by providing a plurality of first pin holes 134 on the pillar 112, providing a second pin hole on the first portion 118 to be fitted into the first pin hole 134, and providing a first pin 138 connecting the first pin hole 134 and the first pin hole 134, the first portion 118 and the pillar 112 can be fixedly connected by the first pin 138 after the first portion 118 is adjusted in height. By providing the third pin hole 136 on the second portion 120 to be engaged with the first pin hole 134 and providing the second pin 140 connecting the first pin hole 134 and the third pin hole 136, the second portion 120 can be fixedly connected to the pillar 112 by the second pin 140 after the second portion 120 is adjusted in height.
For convenience and practicability, a latch cylinder may be further provided, and a latch may be connected to the latch cylinder to control whether the first pin 138 and the second pin 140 are inserted into the corresponding first pin holes 134.
In some embodiments, referring to fig. 4 and 5, the hydraulic mount test apparatus further includes at least one second outer load cylinder 142 connected to the load platform 116; each second outer load cylinder 142 includes a first telescoping rod 144 parallel to the guide rail 126, with the extending end of the first telescoping rod 144 connected to the upright 112.
In this embodiment, the hydraulic bracket testing apparatus further includes at least one second outer loading cylinder 142 connected to the loading platform 116, each second outer loading cylinder 142 includes a first telescopic rod 144 parallel to the guide rail 126, and an extending end of the first telescopic rod 144 is connected to the upright 112, so that when the first telescopic rod 144 extends, the loading platform 116 can slide along the guide rail 126 in a direction away from the corresponding upright 112, and thus the loading platform 116 can be used to apply friction force to the upper top surface of the hydraulic bracket, i.e., provide a loading force parallel to the upper top surface of the hydraulic bracket. Through the scheme, the composite loading of the tested hydraulic support is realized, the actual working condition of the hydraulic support in the inclined coal bed can be better simulated, and then the falling prevention and anti-slip performance, the stability and the reliability of the hydraulic support can be effectively detected.
Illustratively, the number of the second outer loading cylinders 142 is two, and the two second outer loading cylinders are respectively arranged on two opposite sides of the loading platform 116.
In some embodiments, referring to fig. 4 and 5, the hydraulic mount testing apparatus further includes at least one third external load cylinder 146 connected to the at least one second external load cylinder 142 in a one-to-one correspondence; each third outer load cylinder 146 is located at one side of the test space, and each third outer load cylinder 146 includes a second telescopic rod 148 perpendicular to the first telescopic rod 144 and the upright 112, and an extended end of the second telescopic rod 148 is aligned with the other side of the test space.
In this embodiment, the hydraulic bracket testing apparatus further includes at least one third external loading cylinder 146 connected to the at least one second external loading cylinder 142 in a one-to-one correspondence manner, each third external loading cylinder 146 is located at one side of the testing space, each third external loading cylinder 146 includes a second telescopic rod 148 perpendicular to the first telescopic rod 144 and the column 112, an extending end of the second telescopic rod 148 is aligned to the other side of the testing space, when a tested hydraulic bracket is placed in the testing space, the second telescopic rod 148 abuts against a side surface of the hydraulic bracket, so that a lateral loading force is provided to the hydraulic bracket, the lateral loading force and the loading force increased by the second external loading cylinder 142 are arranged at 90 degrees and are all parallel to the upper top surface of the hydraulic bracket. Through the scheme, the three-dimensional composite loading of the tested hydraulic support is realized, the actual working condition of the hydraulic support in the inclined coal bed can be better simulated, and then the anti-falling and anti-skid performance, the stability and the reliability of the hydraulic support can be effectively detected.
In some embodiments, referring to fig. 1, 2, 4, and 6, the number of roller disks 104 is two, and the body frame 106 is connected between the two roller disks 104; two sides of the longitudinal center line of each roller disc 104 are respectively provided with a roller device 102, each roller device 102 comprises at least one pair of rollers, and two rollers of each pair of rollers are arranged at intervals along the circumferential direction of the roller disc 104.
In this embodiment, the number of the roller discs 104 is two, and the main body frame 106 is connected between the two roller discs 104, so as to realize uniform and balanced stress of the two roller discs 104 and prevent the buckling deformation caused by the integral torsion of the hydraulic support pressing device due to imbalance. Two sides of the longitudinal center line of each roller disc 104 are respectively provided with one roller device 102, each roller device 102 comprises at least one pair of rollers, two rollers in each pair of rollers are arranged along the circumferential interval of the roller disc 104, in the test process, the center of a main body frame 106 installed on the roller disc 104 is difficult to deviate due to the difference of tested hydraulic supports, large eccentric force is generated, the eccentric force generated in the rotating process can be offset, the center of the hydraulic support test device is ensured to be always positioned on the center line of the roller device 102 as much as possible, and potential safety hazards are reduced.
Illustratively, referring to fig. 1, 2 and 4, each idler device 102 further includes a support fixed on the foundation, and a bracket hinged to the support and having a stressed state of an isosceles triangle. The support is arranged at the top corner of the support, a pair of rollers is hinged at two bottom corners of the support respectively, and the two rollers in each pair of rollers are arranged at intervals along the circumferential direction of the roller disc 104. Thus each idler device 102 has two pairs of rollers, and for each side of the longitudinal centerline of the roller disk 104, 8 rollers support the roller disk 104. Through the scheme, the eccentric force generated in the rotating process can be effectively offset, and the center of the hydraulic support test device is further ensured to be always positioned on the central line of the carrier roller device 102, so that the potential safety hazard is further reduced.
In some embodiments, a central portion of each roller tray 104 is provided with a storage opening communicating with the testing space.
In this embodiment, a storage opening communicated with the test space is formed in the center of each roller disk 104, so that the tested hydraulic support can be conveniently placed in the test space or guided out of the test space.
Illustratively, referring to fig. 5, the loading platform 116 is provided with a mounting slot 150 on a surface facing the base 108, and a loading block is disposed in the mounting slot 150 to load a local area of the top surface of the hydraulic bracket.
Illustratively, the surface of the base 108 facing the loading platform 116 is also provided with the mounting slot 150.
Referring to fig. 6, in order to drive the roller disks 104 to rotate, a rack 152 is provided at the outer edge of each roller disk 104, and the rack 152 is provided in a range extending from the bottom longitudinal center of the roller disk 104 up to 90 degrees along the outer circumference of the roller disk 104. The hydraulic bracket testing device further comprises two driving motors 128 fixedly arranged on the base, and each driving motor 128 is connected with a rack 152 on one roller disc 104 through a gear speed reducing mechanism 154, so that the corresponding roller disc 104 is driven to rotate relative to the carrier roller device 102 by the driving motors 128. In this embodiment, the rack 152 on the roller disc 104 is set to be a symmetrical structure relative to the longitudinal center line of the roller disc 104, so that the tested hydraulic support can rotate in two directions along with the roller disc 104, and the rotating angle range is-90 degrees to +90 degrees, which can realize sequential advance price to complete multiple test projects corresponding to multiple inclined coal seams, simplify test steps, reduce labor intensity and shorten test time.
Illustratively, the rack 152 includes multiple segments of pinion racks 152 that may be independent of each other, with each segment of pinion racks 152 being pinned and bolted to the roller plate 104. Specifically, first, the rack 152 is divided into a plurality of small rack sections 152, so that the machining size of the rack 152 can be reduced, and the machining and assembly of the rack 152 are facilitated. When the multi-section small rack 152 is installed on the roller disc 104 to form the rack 152, the small rack 152 is positioned through the pin key, so that the assembling accuracy of the small rack 152 can be guaranteed, the pin key can bear the shearing force generated when the roller disc 104 rotates, and the bolt for fixing the rack 152 on the roller disc 104 is prevented from being broken and failed.
In some embodiments, referring to FIG. 2, each roller disk 104 has a brake 130 fixedly disposed on the base on either side of the longitudinal centerline. The brake device 130 is provided with a retractable locking block which can be moved between two adjacent teeth on the rack 152 to restrict rotation of the respective roller disc 104 relative to the idler roller device 102.
In this embodiment, each roller disk 104 has a brake 130 fixedly mounted on the base on each side of the longitudinal centerline, and the brakes 130 have retractable locking blocks that can be moved between adjacent teeth on the rack 152 to limit the rotation of the respective roller disk 104 relative to the idler roller 102. Through the scheme, the roller disc 104 and the carrier roller device 102 can be relatively fixed, so that the tested hydraulic support can be fixed at the inclined angle position of the corresponding inclined coal bed, and the falling prevention and anti-skid performance, stability and reliability of the hydraulic support can be conveniently detected.
Illustratively, the foundation may be a foundation.
Illustratively, the base may also be the holder 132. Referring to fig. 2, 4 and 6, the hydraulic bracket testing device may further include a fixing seat 132, and the idler roller device 102, the brake device 130 and the driving motor 128 are all fixed on the fixing seat 132, so that the hydraulic bracket testing device is convenient to detach and move.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. The hydraulic support test device is characterized by comprising a carrier roller device fixedly arranged on a foundation, a roller disc rotatably arranged on the carrier roller device, and a main body frame arranged on the side surface of the roller disc;
the main body frame comprises a base fixedly connected with the roller disc, a top beam fixedly connected with the roller disc and an upright post connected between the base and the top beam;
the hydraulic support test device also comprises a movable platform which is connected with the upright column in a sliding way, a guide rail which is arranged on the movable platform and is vertical to the upright column, and a loading platform which is connected with the guide rail in a sliding way, wherein the surface of the loading platform facing the base is provided with a mounting groove, a loading block is arranged on the mounting groove, and a test space for testing the hydraulic support is formed between the loading platform and the base;
the hydraulic support test device also comprises at least one second outer loading oil cylinder connected with the loading platform; each second outer loading oil cylinder comprises a first telescopic rod parallel to the guide rail, and the extending end of the first telescopic rod is connected with the upright post;
the hydraulic support test device also comprises at least one third external loading oil cylinder which is connected with the at least one second external loading oil cylinder in a one-to-one correspondence manner; each third outer loading oil cylinder is located on one side of the test space, each third outer loading oil cylinder comprises a second telescopic rod perpendicular to the first telescopic rod and the upright post, and the extending end of the second telescopic rod is aligned to the other side of the test space.
2. The hydraulic mount test rig of claim 1, wherein the movable platform includes first and second portions spaced apart along an axis of the column, the first and second portions each being slidably mounted to the column;
the hydraulic support test device also comprises a heightening oil cylinder connected between the base and the first part, and a first external loading oil cylinder connected between the first part and the second part; the second portion is connected with the loading platform through the guide rail.
3. The hydraulic support test device according to claim 2, wherein a plurality of first pin holes are formed in the upright column, the first pin holes are sequentially arranged at intervals along the axial direction of the upright column, and the axis of each first pin hole is perpendicular to the axis of the upright column;
the first part is provided with a second pin hole matched with the first pin hole, and the second part is provided with a third pin hole matched with the first pin hole;
the hydraulic support test device further comprises a first pin connected with the first pin hole and a second pin connected with the first pin hole and the third pin hole.
4. The hydraulic support test device according to any one of claims 1 to 3, wherein the number of the roller discs is two, and the main body frame is connected between the two roller discs;
the two sides of the longitudinal center line of each roller disc are respectively provided with one roller device, each roller device comprises at least one pair of rollers, and the two rollers of each pair of rollers are arranged at intervals along the circumferential direction of the roller disc.
5. The hydraulic support test device according to claim 4, wherein each carrier roller device further comprises a support fixed on a foundation and a support hinged to the support and having a stress state of an isosceles triangle;
the support is arranged at the top corner of the support, a pair of rollers is hinged to two bottom corners of the support respectively, and the two rollers in each pair of rollers are arranged at intervals along the circumferential direction of the roller disc.
6. The hydraulic support testing device of claim 4, wherein a storage opening communicating with the testing space is formed in the center of each roller disc.
7. The hydraulic support test device according to claim 4, wherein a rack is arranged on the outer edge of each roller disc, and the rack extends upwards from the longitudinal center of the bottom of the roller disc by 90 degrees along the periphery of the roller disc;
the hydraulic support test device further comprises two driving motors fixedly arranged on a foundation, and each driving motor is connected with a rack on one roller disc through a gear reduction mechanism so as to drive the corresponding roller disc to rotate relative to the carrier roller device.
8. The hydraulic mount test rig of claim 7, wherein each of the roll disks has a brake device fixedly disposed on the foundation on either side of a longitudinal centerline thereof;
and the braking device is provided with a telescopic locking block which can move to a position between two adjacent teeth on the rack so as to limit the corresponding roller disc to rotate relative to the roller device.
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| CN201910009452.9A CN109799080B (en) | 2019-01-04 | 2019-01-04 | Hydraulic support test device |
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|---|---|---|---|
| CN201910009452.9A CN109799080B (en) | 2019-01-04 | 2019-01-04 | Hydraulic support test device |
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| CN109799080A CN109799080A (en) | 2019-05-24 |
| CN109799080B true CN109799080B (en) | 2020-06-02 |
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| CN112611551B (en) * | 2020-11-24 | 2023-03-24 | 山东塔高矿业机械装备制造有限公司 | Hydraulic support inspection method based on simulation assembly |
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| CN201811757U (en) * | 2010-10-18 | 2011-04-27 | 天津市天锻压力机有限公司 | Hydraulic support test bed |
| CN104075903A (en) * | 2014-06-30 | 2014-10-01 | 南京蒙福液压机械有限公司 | Hydraulic support test device |
| CN106289830A (en) * | 2016-07-27 | 2017-01-04 | 煤炭科学技术研究院有限公司 | A kind of rotatable device and rotatable hydraulic bracket test-bed |
| CN205861344U (en) * | 2016-07-27 | 2017-01-04 | 煤炭科学技术研究院有限公司 | A kind of rotatable hydraulic support tester |
| CN108709731B (en) * | 2018-07-06 | 2023-12-22 | 郑州四维机电装备制造有限公司 | Hydraulic support test device |
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2019
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