End-reinforced hydraulic support device

Abstract

The invention discloses an end reinforced hydraulic supporting device which comprises a hydraulic support, a first telescopic rod, a supporting plate, a second telescopic rod, a supporting seat and a second hydraulic stand column. One end of a top beam is hinged to the top end of a tail beam, and the bottom end of the tail beam is hinged to a base; the first hydraulic stand column is arranged between the top beam and the base, the first telescopic rod comprises a first fixing part and a first telescopic part, the first fixing part is connected with the top beam, the first telescopic part is connected with the supporting plate, the second telescopic rod comprises a second fixing part and a second telescopic part, and the second fixing part is connected with the second telescopic part. The second fixing part is connected with the base, the second telescopic part is connected with the supporting seat, and the two ends of the second hydraulic stand column are hinged to the supporting plate and the supporting seat respectively. According to the end-reinforced hydraulic supporting device, the probability of occurrence of wall caving and roof caving accidents of the end of a working face is greatly reduced, and the supporting safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic supports, and in particular to an end-reinforced hydraulic support device. Background Art

[0002] The end of the fully mechanized mining face is the intersection of the working face and the mining roadway. It is the throat passage for mining, ventilation, pedestrians, material transportation, and coal discharge. There are many types of equipment here, and the exposed area of ​​the roof is large. It is the key and difficult area of ​​the working face support. Especially at the end of the working face adjacent to the goaf, under the influence of the mining stress of the working face and the lateral support pressure of the adjacent working face, the mine pressure is strong and the surrounding rock deformation is large.

[0003] The end of the comprehensive mining working face is generally supported by the end hydraulic support. However, due to the large number of equipment that needs to be maintained at the end of the working face, the large exposed area of ​​the roof, and the long length of the top beam of the end support of the working face, the stress state of the end hydraulic support of the working face is poor, and the end hydraulic support is prone to lowering, which has a poor maintenance effect on the end roof of the working face, easily causing spalling and roof collapse accidents at the end of the working face, and the support safety is poor. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides an end-reinforced hydraulic support device with high support safety.

[0005] The end-reinforced hydraulic support device of the present invention comprises a hydraulic support, a first telescopic rod, a support plate, a second telescopic rod, a support seat and a second hydraulic column. The hydraulic support comprises a top beam, a tail beam, a first hydraulic column and a base. One end of the top beam is hingedly connected to the top end of the tail beam, and the bottom end of the tail beam is hingedly connected to the base. The first hydraulic column is arranged between the top beam and the base and is used to drive the top beam to rise and fall to support the top plate of the tunnel.

[0006] The first telescopic rod includes a first fixed portion and a first telescopic portion, wherein the first fixed portion is connected to the top beam, the first telescopic portion is telescopic relative to the first fixed portion along the length direction of the top beam, and the first telescopic portion is connected to the support plate, and the support plate abuts against the bottom end surface of the top beam in the vertical direction;

[0007] The second telescopic rod comprises a second fixed portion and a second telescopic portion, the second fixed portion is connected to the base, the second telescopic portion is telescopic relative to the second fixed portion along the length direction of the top beam, and the second telescopic portion is connected to the support seat;

[0008] Two ends of the second hydraulic column are respectively hingedly connected to the support plate and the support seat, and are used to support the support plate upward.

[0009] In some embodiments, one end of the second fixing portion is hingedly connected to the base.

[0010] In some embodiments, a groove is provided on the bottom end surface of the top beam, the groove extends along the length direction of the top beam, the first telescopic rod is placed in the groove, and a connecting plate is provided at the end of the first telescopic part away from the first fixed part, the connecting plate extends in a vertical direction to the outside of the groove and is connected to the support plate.

[0011] In some embodiments, a slide groove is provided on the bottom end surface of the top beam, and the slide groove extends along the length direction of the top beam. A slider is provided on the top end surface of the support plate, and at least a portion of the slider is placed in the slide groove. The slider can be slidably matched with the slide groove along the length direction of the top beam.

[0012] In some embodiments, the number of the slide grooves is two, and the two slide grooves are spaced apart on both sides of the groove along the width direction of the top beam. The number of the sliders is two, and the two sliders are matched with the two slide grooves in a one-to-one correspondence.

[0013] In some embodiments, a first plate body and a second plate body are provided on the bottom end surface of the support plate, the first plate body and the second plate body are arranged relatively spaced apart along the width direction of the top beam, a first hinge shaft extending along the width direction of the top beam is provided between the first plate body and the second plate body, and the second hydraulic column is provided between the first plate body and the second plate body and connected to the first hinge shaft.

[0014] In some embodiments, the first plate body and / or the second plate body is provided with a first reinforcing rib on an end surface of one side away from the second hydraulic column in the width direction of the top beam, and the reinforcing rib extends in the vertical direction to connect with the bottom end surface of the support plate.

[0015] In some embodiments, a third plate body and a fourth plate body are provided on the top end surface of the support seat, and the third plate body and the fourth plate body are arranged relatively spaced apart along the width direction of the top beam. A second hinge shaft extending along the width direction of the top beam is provided between the third plate body and the fourth plate body, and the second hydraulic column is provided between the third plate body and the fourth plate body and is connected to the second hinge shaft.

[0016] In some embodiments, the third plate body and / or the fourth plate body is provided with a second reinforcing rib on an end surface of one side away from the second hydraulic column in the width direction of the top beam, and the reinforcing rib extends in the vertical direction to connect with the top end surface of the support seat.

[0017] In some embodiments, the number of the second hydraulic columns is two, and the two second hydraulic columns are arranged at intervals in the width direction of the top beam.

[0018] The end-reinforced hydraulic support device of the embodiment of the present invention effectively prevents the phenomenon of the top beam lowering, improves the overall support effect, greatly reduces the probability of the end-slab and roof collapse accidents of the working face, and improves the support safety. In addition, a stable annular support structure is formed between the top beam, the second hydraulic column, the second telescopic rod, the base and the first hydraulic column, which significantly enhances the support capacity of the hydraulic support. The telescopic design of the first telescopic rod and the second telescopic rod enables the device to adapt to top beams of different lengths and working face conditions, enhancing the adaptability of the device. Since the support effect is significantly improved, the downtime and accident handling time caused by support problems are reduced, and the work efficiency of the comprehensive mining working face is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an end-reinforced hydraulic support device according to an embodiment of the present invention.

[0020] Figure 2 It is a structural schematic diagram of an end-reinforced hydraulic support device according to an embodiment of the present invention.

[0021] Figure 3 It is a cross-sectional view of an end-reinforced hydraulic support device according to an embodiment of the present invention.

[0022] Figure 4 It is a partial structural schematic diagram of the end reinforcement hydraulic support device according to an embodiment of the present invention.

[0023] Figure 5 yes Figure 4 Enlarged schematic diagram of part A.

[0024] Figure 6 yes Figure 4 Schematic diagram of the enlarged portion B.

[0025] Reference numerals:

[0026] 100. End-reinforced hydraulic support device; 1. Hydraulic support; 101. Top beam; 1011. Groove; 1012. Slide; 102. Tail beam; 103. First hydraulic column; 104. Base; 2. First telescopic rod; 201. First fixed portion; 202. First telescopic portion; 3. Support plate; 4. Second telescopic rod; 401. Second fixed portion; 402. Second telescopic portion; 5. Support seat; 6. Second hydraulic column; 7. Connecting plate; 8. Slider; 9. First plate body; 10. Second plate body; 11. First hinge axis; 12. First reinforcing rib; 13. Third plate body; 14. Fourth plate body; 15. Second hinge axis; 16. Second reinforcing rib. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0028] like Figures 1 to 6 As shown, the end-reinforced hydraulic support device 100 of the embodiment of the present invention comprises a hydraulic support 1, a first telescopic rod 2, a support plate 3, a second telescopic rod 4, a support seat 5 and a second hydraulic column 6. The hydraulic support 1 comprises a top beam 101, a tail beam 102, a first hydraulic column 103 and a base 104, one end of the top beam 101 is hingedly connected to the top end of the tail beam 102, the bottom end of the tail beam 102 is hingedly connected to the base 104, and the first hydraulic column 103 is arranged between the top beam 101 and the base 104, and is used to drive the top beam 101 to rise and fall to support the top plate of the tunnel.

[0029] The first telescopic rod 2 includes a first fixed portion 201 and a first telescopic portion 202. The first fixed portion 201 is connected to the top beam 101. The first telescopic portion 202 is telescopic relative to the first fixed portion 201 along the length direction of the top beam 101. The first telescopic portion 202 is connected to the support plate 3. The support plate 3 stops at the bottom end surface of the top beam 101 in the vertical direction.

[0030] The second telescopic rod 4 includes a second fixed portion 401 and a second telescopic portion 402, the second fixed portion 401 is connected to the base 104, the second telescopic portion 402 is telescopic relative to the second fixed portion 401 along the length direction of the top beam 101, and the second telescopic portion 402 is connected to the support seat 5. The two ends of the second hydraulic column 6 are respectively hingedly connected to the support plate 3 and the support seat 5, and are used to support the support plate 3 upward.

[0031] When the end-reinforced hydraulic support device 100 of the embodiment of the present invention is in use, the hydraulic support 1 is in the initial position, the top beam 101, the tail beam 102, the first hydraulic column 103 and the base 104 constitute the basic support structure, the first telescopic rod 2 and the second telescopic rod 4 are in a retracted state, and the support plate 3 and the support seat 5 do not function. By operating the first hydraulic column 103, the top beam 101 rises and begins to support the top plate of the tunnel. After the top beam 101 completes the support of the top plate of the tunnel, the first telescopic portion 202 of the first telescopic rod 2 is extended along the length direction of the top beam 101 to drive the support plate 3 to move to a suitable position at the front end of the top beam 101. During the movement, the support plate 3 always stops on the bottom end surface of the top beam 101.

[0032] While the support plate 3 is moving, the second telescopic portion 402 of the second telescopic rod 4 is extended along the length direction of the top beam 101, and the support seat 5 is also moved to a suitable position synchronously. The second hydraulic column 6 starts to work, and its two ends are respectively hingedly connected to the support plate 3 and the support seat 5, supporting the support plate 3 upward, effectively preventing the top beam 101 from bowing, improving the overall support effect, greatly reducing the probability of the end of the working face slab and roof collapse accidents, and improving the support safety.

[0033] In addition, a stable annular support structure is formed between the top beam 101, the second hydraulic column 6, the second telescopic rod 4, the base 104 and the first hydraulic column 103, which significantly enhances the support capacity of the hydraulic support 1. The telescopic design of the first telescopic rod 2 and the second telescopic rod 4 enables the device to adapt to top beams 101 of different lengths and working surface conditions, enhancing the adaptability of the device. As the support effect is significantly improved, the downtime and accident handling time caused by support problems are reduced, and the working efficiency of the comprehensive mining face is improved.

[0034] In some embodiments, one end of the second fixing portion 401 is hingedly connected to the base 104. Since the second fixing portion 401 is hingedly connected to the base 104, the second hydraulic column 6 can be retracted first to raise the support seat 5 to a certain height and separate it from the bottom plate of the tunnel. Then, the second telescopic portion 402 is used to telescope and drive the support seat 5 to move. After the second telescopic portion 402 drives the support seat 5 to move to a suitable position, the second hydraulic column 6 is extended to make the support seat 5 stop against the bottom plate of the tunnel. It can avoid using other components to support the bottom of the support seat 5, facilitate the installation and fixation of the support seat 5, and help improve the support efficiency.

[0035] In some embodiments, a groove 1011 is formed on the bottom surface of the top beam 101, and the groove 1011 extends along the length direction of the top beam 101, and the first telescopic rod 2 is placed in the groove 1011. A connecting plate 7 is provided at one end of the first telescopic portion 202 away from the first fixed portion 201, and the connecting plate 7 extends vertically to the outside of the groove 1011 and is connected to the support plate 3.

[0036] The end-reinforced hydraulic support device 100 of the embodiment of the present invention can effectively limit the movement trajectory of the telescopic rod and increase the overall stability of the structure by placing the first telescopic rod 2 in the groove 1011 at the bottom end of the top beam 101. The setting of the connecting plate 7 makes the connection between the first telescopic rod 2 and the support plate 3 more secure, avoiding the problem of connection failure caused by vibration or external force. Since the designs of the telescopic rod and the connecting plate 7 are relatively independent, once damaged, they can be replaced separately, which is easy to maintain. The design of the groove 1011 makes the structure more compact and reduces unnecessary space occupation.

[0037] In some embodiments, a slide groove 1012 is provided on the bottom end surface of the top beam 101, and the slide groove 1012 extends along the length direction of the top beam 101. A slider 8 is provided on the top end surface of the support plate 3, and at least a portion of the slider 8 is placed in the slide groove 1012, and the slider 8 can slidably cooperate with the slide groove 1012 along the length direction of the top beam 101.

[0038] The cooperation between the slide groove 1012 and the slider 8 helps to reduce friction, allowing the slider 8 to slide smoothly along the length direction of the top beam 101, thereby improving the movement efficiency of the mechanism. The guiding effect of the slide groove 1012 makes the positioning of the slider 8 more accurate during the movement, which is conducive to maintaining the relative position relationship between the top beam 101 and the support plate 3. The cooperation design of the slide groove 1012 and the slider 8 can prevent the lateral movement of the top beam 101 during the movement, thereby enhancing the stability of the overall structure. Due to the cooperation between the slider 8 and the slide groove 1012, the installation process becomes simpler and does not require complicated alignment and fixing procedures. The design of the slider 8 and the slide groove 1012 usually has high wear resistance, reduces the need for daily maintenance, and extends the service life of the mechanism.

[0039] Optionally, there are two slide grooves 1012 , which are spaced apart on both sides of the groove 1011 along the width direction of the top beam 101 , and there are two sliders 8 , which are matched with the two slide grooves 1012 in a one-to-one manner.

[0040] The symmetrical design of the two sliders 8 and the slide groove 1012 helps to improve the balance of the top beam 101 and prevent tilting or shaking during the sliding process. The two sliders 8 are placed in the two slide grooves 1012 respectively, which can provide support in two directions and increase the stability of the structure. The cooperation of the two sliders 8 helps to accurately control the position of the support plate 3, making the adjustment process more accurate and meeting the application occasions with high precision requirements.

[0041] In some embodiments, a first plate body 9 and a second plate body 10 are provided on the bottom end surface of the support plate 3, and the first plate body 9 and the second plate body 10 are arranged relatively spaced apart along the width direction of the top beam 101. A first hinge shaft 11 extending along the width direction of the top beam 101 is provided between the first plate body 9 and the second plate body 10, and the second hydraulic column 6 is provided between the first plate body 9 and the second plate body 10 and is connected to the first hinge shaft 11.

[0042] The spacing arrangement of the first plate body 9 and the second plate body 10, as well as the combination with the first hinge shaft 11 and the second hydraulic column 6, provide a stable support foundation capable of withstanding a large load. The use of the second hydraulic column 6 allows dynamic adjustment during the use of the top beam 101 to meet real-time changing needs.

[0043] In some embodiments, the first plate body 9 and / or the second plate body 10 is provided with a first reinforcing rib 12 on the end surface of one side away from the second hydraulic column 6 in the width direction of the top beam 101, and the first reinforcing rib 12 extends in the vertical direction to connect with the bottom end surface of the support plate 3.

[0044] like Figure 5 As shown, the presence of the first reinforcing rib 12 can significantly improve the bending strength and shear strength of the first plate body 9 and / or the second plate body 10, so that the support structure can withstand a larger load. The first reinforcing rib 12 helps to distribute the load more evenly on the plate body and the support plate 3, reduces local stress concentration, and improves the reliability of the overall structure. The first reinforcing rib 12 increases the rigidity of the plate body, helps prevent the plate body from deforming under the action of the hydraulic column, thereby maintaining the stability of the entire support system. When the second hydraulic column 6 is working, the first reinforcing rib 12 helps to reduce the deformation of the plate body caused by pressure and gravity, and maintain its shape and function.

[0045] In some embodiments, a third plate body 13 and a fourth plate body 14 are provided on the top end surface of the support seat 5, and the third plate body 13 and the fourth plate body 14 are arranged relatively spaced apart along the width direction of the top beam 101. A second hinge shaft 15 extending along the width direction of the top beam 101 is provided between the third plate body 13 and the fourth plate body 14, and the second hydraulic column 6 is provided between the third plate body 13 and the fourth plate body 14 and is connected to the second hinge shaft 15.

[0046] The existence of the first articulated axis 11 and the second articulated axis 15 provides a double articulated mechanism, which increases the flexibility and adaptability of the structure and allows a larger angle adjustment range. Through the cooperation of the two articulated axes and the hydraulic column, a more stable support structure can be formed, which can effectively resist external forces and dynamically adjust the ability: the setting of the second hydraulic column 6 allows the height of the support seat 5 to be dynamically adjusted to adapt to different working heights and load requirements.

[0047] In some embodiments, the third plate 13 and / or the fourth plate 14 is provided with a second reinforcing rib 16 on the end surface of one side away from the second hydraulic column 6 in the width direction of the top beam 101, and the reinforcing rib extends in the vertical direction to connect with the top end surface of the support seat 5.

[0048] like Figure 6As shown, the second reinforcing rib 16 can significantly improve the bending and shearing resistance of the third plate body 13 and the fourth plate body 14, thereby enhancing the strength of the entire support seat 5. The second reinforcing rib 16 helps to distribute the stress more evenly to various parts of the support seat 5, reducing the risk of structural damage caused by local stress concentration. The second reinforcing rib 16 increases the rigidity of the plate body, helps to maintain the stability of the support seat 5 during the adjustment of the hydraulic column, and prevents deformation and shaking. When the second hydraulic column 6 is adjusted in height, the reinforcing rib helps to reduce the deformation of the plate body caused by load and pressure, and maintain the shape and performance of the support seat 5.

[0049] Optionally, the number of the second hydraulic columns 6 is two, and the two second hydraulic columns 6 are arranged at intervals in the width direction of the top beam 101 .

[0050] like Figure 1 , Figure 2 and Figure 4 As shown, the spaced arrangement of the two second hydraulic columns 6 provides a better support foundation, thereby enhancing the stability of the entire structure, especially when subjected to a large load. The two second hydraulic columns 6 can share the load together, making the load distribution more even and reducing the pressure on a single column. Due to the presence of two second hydraulic columns 6, even if one fails, the other can still work, thereby reducing the risk of failure of the entire structure. The symmetrical arrangement of the two second hydraulic columns 6 can improve the overall symmetry of the structure and help improve the overall performance of the structure.

[0051] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0056] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. An end-reinforced hydraulic support device, characterized in that: include: A hydraulic support (1), the hydraulic support (1) comprising a top beam (101), a tail beam (102), a first hydraulic column (103) and a base (104), one end of the top beam (101) being hingedly connected to the top end of the tail beam (102), the bottom end of the tail beam (102) being hingedly connected to the base (104), the first hydraulic column (103) being arranged between the top beam (101) and the base (104) and being used for driving the top beam (101) to rise and fall so as to support the roof of the tunnel; A first telescopic rod (2) and a support plate (3), the first telescopic rod (2) comprising a first fixed portion (201) and a first telescopic portion (202), the first fixed portion (201) being connected to the top beam (101), the first telescopic portion (202) being telescopic relative to the first fixed portion (201) along the length direction of the top beam (101), the first telescopic portion (202) being connected to the support plate (3), and the support plate (3) being abutted against the bottom end surface of the top beam (101) in the vertical direction; a second telescopic rod (4) and a support seat (5), the second telescopic rod (4) comprising a second fixed portion (401) and a second telescopic portion (402), the second fixed portion (401) being connected to the base (104), the second telescopic portion (402) being telescopic relative to the second fixed portion (401) along a length direction of the top beam (101), and the second telescopic portion (402) being connected to the support seat (5); A second hydraulic column (6), the two ends of which are respectively hingedly connected to the support plate (3) and the support seat (5), and are used to support the support plate (3) upwards.

2. The end-reinforced hydraulic support device according to claim 1, characterized in that: One end of the second fixing portion (401) is hingedly connected to the base (104).

3. The end-reinforced hydraulic support device according to claim 1, characterized in that: A groove (1011) is provided on the bottom end surface of the top beam (101), and the groove (1011) extends along the length direction of the top beam (101). The first telescopic rod (2) is placed in the groove (1011), and a connecting plate (7) is provided at one end of the first telescopic portion (202) away from the first fixed portion (201). The connecting plate (7) extends in a vertical direction to the outside of the groove (1011) and is connected to the support plate (3).

4. The end-reinforced hydraulic support device according to claim 3, characterized in that: A slide groove (1012) is provided on the bottom end surface of the top beam (101), and the slide groove (1012) extends along the length direction of the top beam (101). A slider (8) is provided on the top end surface of the support plate (3), and at least a portion of the slider (8) is placed in the slide groove (1012). The slider (8) can slidably cooperate with the slide groove (1012) along the length direction of the top beam (101).

5. The end-reinforced hydraulic support device according to claim 4, characterized in that: There are two slide grooves (1012), which are arranged at intervals on both sides of the groove (1011) along the width direction of the top beam (101). There are two sliders (8), which are matched with the two slide grooves (1012) in a one-to-one correspondence.

6. The end-reinforced hydraulic support device according to claim 1, characterized in that: A first plate body (9) and a second plate body (10) are provided on the bottom end surface of the support plate (3); the first plate body (9) and the second plate body (10) are arranged relatively spaced apart along the width direction of the top beam (101); a first hinge shaft (11) extending along the width direction of the top beam (101) is provided between the first plate body (9) and the second plate body (10); the second hydraulic column (6) is provided between the first plate body (9) and the second plate body (10) and is connected to the first hinge shaft (11).

7. The end-reinforced hydraulic support device according to claim 6, characterized in that: The first plate body (9) and / or the second plate body (10) is provided with a first reinforcing rib (12) on an end surface of the side facing away from the second hydraulic column (6) in the width direction of the top beam (101), and the first reinforcing rib (12) extends in the vertical direction to be connected to the bottom end surface of the support plate (3).

8. The end-reinforced hydraulic support device according to claim 1, characterized in that: A third plate body (13) and a fourth plate body (14) are provided on the top end surface of the support seat (5); the third plate body (13) and the fourth plate body (14) are arranged relatively spaced apart along the width direction of the top beam (101); a second hinge shaft (15) extending along the width direction of the top beam (101) is provided between the third plate body (13) and the fourth plate body (14); the second hydraulic column (6) is provided between the third plate body (13) and the fourth plate body (14) and is connected to the second hinge shaft (15).

9. The end-reinforced hydraulic support device according to claim 8, characterized in that: The third plate body (13) and / or the fourth plate body (14) are provided with a second reinforcing rib (16) on an end surface of the side facing away from the second hydraulic column (6) in the width direction of the top beam (101), and the second reinforcing rib (16) extends in the vertical direction to be connected to the top end surface of the support seat (5).

10. The end-reinforced hydraulic support device according to any one of claims 1 to 9, characterized in that: The number of the second hydraulic columns (6) is two, and the two second hydraulic columns (6) are arranged at intervals in the width direction of the top beam (101).

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