A hydraulic support side guard plate installation device

Abstract

The present invention provides a side guard plate mounting device for a hydraulic support, comprising a mounting frame and a rocker arm hinged on the mounting frame, one end of the rocker arm is connected to a first power output component for controlling the rotation of the rocker arm, and the other end is provided with a clamping portion for clamping the side guard plate, the clamping portion is hingedly connected to the rocker arm, and the clamping portion comprises a clamping plate for achieving surface-to-surface contact with the side guard plate. The beneficial effect of the present invention is that since the clamping portion comprises a clamping plate for achieving surface-to-surface contact with the side guard plate, compared with the point-to-surface contact form in the prior art, the contact area is large, thereby minimizing the local deformation and damage of the side guard plate to the greatest extent, and ensuring the use effect of the side guard plate. At the same time, since the clamping portion is hingedly connected to the rocker arm, the clamping portion can also rotate during the rotation of the rocker arm, thereby enabling the clamping plate to adaptively adjust the contact mode with the side guard plate to achieve surface-to-surface contact and ensure the clamping effect.

Description

Technical Field

[0001] The invention relates to a hydraulic support side guard plate installation device. Background Art

[0002] Hydraulic support is an important part of comprehensive mining equipment and is a structure used to control the mine pressure of the coal mining face. The mine pressure of the comprehensive mining face acts on the hydraulic support in the form of external load. The hydraulic support reliably and effectively supports and controls the roof of the working face, isolates the goaf, prevents gangue from entering the mining face and advancing the conveyor. Among them, the side guard plate is an important part of the hydraulic support. It is mainly installed on the top beam and the shield beam to prevent the leakage of gangue between the frames from causing harm to the support parts and the operating workers, and also plays the role of supporting the roof. In addition, the side guard plate plays a guiding role when raising, lowering or moving the frame to avoid the phenomenon of biting the frame, and can prevent falling and maintain the lateral stability of the frame.

[0003] With the promotion and application of coal mine comprehensive mining equipment, especially the rapid development of hydraulic support technology, especially the widespread application of large mining height and high working resistance technology, higher requirements are put forward for the installation of hydraulic supports. Due to the increasing tonnage of high working resistance and large mining height support components, the installation of hydraulic support side guards is becoming more and more difficult. Traditional manual assembly can no longer meet the assembly requirements of side guards due to its high labor intensity and low efficiency.

[0004] The Chinese utility model patent with the authorization announcement number CN202673307U and the authorization announcement date 2013.01.16 discloses a mining hydraulic support side guard plate assembly device, which includes four jaws (i.e. rocker arms), and each rocker arm is provided with two articulated shafts in the upper and lower directions, wherein a front fixed shaft is connected between the lower articulated shafts of the left and right rocker arms in the front row, and a rear fixed shaft is connected between the lower articulated shafts of the left and right rocker arms in the rear row, and a transverse shaft is fixedly connected between the front and rear fixed shafts, and the front fixed shaft, the rear fixed shaft and the transverse shaft constitute a mounting frame for articulating the rocker arms. The upper articulated shafts of the left and right rocker arms in the front row are respectively connected to the two ends of the front jack through the connecting shaft, and the upper articulated shafts of the left and right rocker arms in the rear row are also respectively connected to the two ends of the rear jack through the connecting shaft. When in use, the front and rear jacks are opened to control the movement of the connecting shaft, so that each rocker arm rotates around the lower hinge shaft to clamp the side guard plate of the hydraulic support. The side guard plate acts on the spring. After the spring is compressed into place, the side guard plate is assembled into place using the pin shaft.

[0005] The above-mentioned rocker arm is an integrated type, and its clamping part for clamping the side guard plate is pointed. The contact mode between the clamping part and the side guard plate is similar to point-surface contact. Therefore, the local force on the side guard plate is relatively large, which may cause damage and deformation of the side guard plate, thereby affecting the use effect of the side guard plate. Summary of the invention

[0006] The object of the present invention is to provide a hydraulic support side guard plate installation device capable of reducing damage and deformation of the side guard plate.

[0007] To achieve the above object, the present invention adopts the following technical solution:

[0008] A hydraulic support side guard plate installation device includes a mounting frame and a rocker arm hinged on the mounting frame, one end of the rocker arm is connected to a first power output component for controlling the rotation of the rocker arm, and the other end is provided with a clamping portion for clamping the side guard plate, the clamping portion is hingedly connected to the rocker arm, and the clamping portion includes a clamping plate for achieving surface-to-surface contact with the side guard plate; the rocker arm includes a first rocker arm segment and a second rocker arm segment telescopically connected through a second power output component, the first rocker arm segment is hingedly connected to the first power output component, and the second rocker arm segment is hingedly connected to the clamping portion.

[0009] The clamping part also includes a connecting plate vertically connected to the clamping plate, a first hinge hole is arranged on the connecting plate, a second hinge hole corresponding to the first hinge hole is arranged on the rocker arm, the connecting plate and the rocker arm are hingedly connected by a first hinge shaft installed in the first and second hinge holes, and a limiting structure for limiting the rotation limit of the connecting plate is also arranged on the rocker arm.

[0010] The connecting plate is also provided with a pin hole, in which a first pin shaft is installed, and the limiting structure is a first long hole for the first pin shaft to pass through.

[0011] The second rocker arm segment is provided with a third hinge hole for being hingedly connected to the first rocker arm segment, and the first rocker arm segment is provided with a guide structure for guiding and retracting the second rocker arm segment.

[0012] The second rocker arm segment is also provided with a second long hole, and the guide structure is a second pin shaft which is provided on the first rocker arm segment and passes through the second long hole.

[0013] The mounting frame is connected with universal wheels for facilitating the movement of the mounting frame.

[0014] The mounting frame is also connected with a bottom lifting jack which is used to extend out to fix the mounting frame after the mounting frame is moved into position by the universal roller.

[0015] The mounting frame comprises a cross beam for hingedly mounting the rocker arm, and at least three cross beams are arranged in parallel and spaced apart to accommodate the installation of side guard plates of different lengths.

[0016] The beneficial effect of the present invention is that: since the clamping part includes a clamping plate for achieving surface-to-surface contact with the side guard plate, the contact area is large compared with the point-to-surface contact form in the prior art, thereby minimizing the local deformation and damage of the side guard plate to the greatest extent, and ensuring the use effect of the side guard plate. At the same time, since the clamping part is hingedly connected to the rocker arm, the clamping part can also rotate during the rotation of the rocker arm, so that the clamping plate can adaptively adjust the contact mode with the side guard plate to achieve surface-to-surface contact and ensure the clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A top view of the side guard plate installation device of the hydraulic support in the present invention;

[0018] Figure 2 for Figure 1 Sectional view along AA direction;

[0019] Figure 3 for Figure 2 The structural diagram of the first rocker arm section;

[0020] Figure 4 for Figure 2 The structural diagram of the second rocker arm section;

[0021] Figure 5 for Figure 2 Structural diagram of the middle clamping part;

[0022] Figure 6 for Figure 1 Cross-sectional view along the BB direction;

[0023] Figure 7 for Figure 1 Sectional view along CC direction;

[0024] Figure 8 This is a schematic diagram of the installation of the hydraulic support side guard plate installation device for the support with a center distance of 2.05m;

[0025] Fig. 9 This is a schematic diagram of the installation of the hydraulic support side guard plate installation device for the support with a center distance of 1.75m;

[0026] Fig.10 This is a schematic diagram of the installation of the hydraulic support side guard plate installation device for the side guard plate of the support with a center distance of 1.5m;

[0027] Fig.11 This is a schematic diagram of the installation of the hydraulic support side guard plate installation device for the support with a center distance of 1.25m;

[0028] In the figure: 1. installation jack; 2. connecting rod; 3. first rocker arm section; 31. fourth hinge hole; 32. fifth hinge hole; 33. third long hole; 34. sixth hinge hole; 4. auxiliary telescopic jack; 5. third hinge shaft; 6. second pin shaft; 7. second rocker arm section; 71. third hinge hole; 72. second long hole; 73. second hinge hole; 74. first long hole; 8. first hinge shaft; 9. first pin shaft; 10. clamping part; 101. pin hole; 102. first hinge hole; 103. clamping plate; 104. connecting plate; 11. second hinge shaft; 12, 12'. side guard plate; 13. end cross beam; 14. rocker arm; 15. end longitudinal beam; 16. middle cross beam; 17. middle longitudinal beam; 18. bottom lifting jack; 19. bottom plate; 20. universal wheel assembly. DETAILED DESCRIPTION

[0029] The specific structure of the hydraulic support side guard plate installation device is as follows: Figure 1 to Figure 7 As shown, the mounting frame includes a mounting frame, which is welded by three cross beams and three longitudinal beams. The three cross beams are two end cross beams 13 and a middle cross beam 16, and the three longitudinal beams are two end longitudinal beams 15 and a middle longitudinal beam 17. Universal wheel assemblies 20 are provided on the two end longitudinal beams 15, so as to facilitate the movement of the entire mounting device. In addition, bottom lifting jacks 18 are also provided on the two end longitudinal beams 15, one end of which is fixed to the end longitudinal beams 15 through a flange plate, and the other end is hinged to the bottom plate 19. When in use, the universal wheel assembly 20 is used to move the mounting device to a suitable position, and then the bottom lifting jack 18 is extended to support the bottom plate 19 on the ground, so that the entire mounting device is stably supported on the ground, which is convenient for the subsequent installation of the side guard plate.

[0030] Two rocker arms 14 are hingedly installed on the two end cross beams 13, one on the left and one on the right. The rocker arm 14 is a modular type, including a first rocker arm section 3, a second rocker arm section 7 and a clamping portion 10. The first rocker arm section 3 is provided with a fourth hinge hole 31, a fifth hinge hole 32 and a sixth hinge hole 34 in the up and down directions. The first rocker arm sections 3 of the two rocker arms in the same left and right directions are respectively connected to the two ends of the first power output component through the fourth hinge hole 31. In the present embodiment, the first power output component is an installation jack 1, specifically, the two ends of the installation jack 1 are respectively connected with connecting rods 2, and each first rocker arm section 3 is hinged to the connecting rod 2, that is, the first rocker arm section is connected to the installation jack 1 through the connecting rod 2.

[0031] The first rocker arm section 3 is composed of two plates, and the connecting rod 2 is located in the middle of the two plates. The first rocker arm section 3 is hingedly mounted on the end cross beam 13 through the fifth hinge hole 32, and the second hinge shaft 11 is installed in the corresponding fifth hinge hole 32. Since the length of the end cross beam 13 is fixed, when the installation jack 1 is extended, the left and right rocker arms can rotate around the second hinge shaft 11, thereby realizing the clamping action.

[0032] The first rocker arm section 3 and the second rocker arm section 7 are telescopically connected through the second power output component. In this embodiment, the second power output component is the auxiliary telescopic jack 4. The sixth hinge hole 34 on the first rocker arm section 3 is used to hinge one end of the auxiliary telescopic jack 4. The second rocker arm section 7 is provided with a third hinge hole 71. The first rocker arm section 3 is also provided with a third long hole 33. The second rocker arm section 7 is also composed of two plates, which are located in the middle of the first rocker arm section 3. The third hinge shaft 5 passes through the third hinge hole 71, the third long hole 33 and the other end of the hinged auxiliary telescopic jack 4, so as to realize the connection between the auxiliary telescopic jack 4, the first rocker arm section 3 and the second rocker arm section 7. Due to the limitation of the third long hole 33, when the auxiliary telescopic jack 4 is extended, the third hinge shaft 5 can only move downward in the third long hole 33, and the second rocker arm section 7 moves downward under the action of the third hinge shaft 5, that is, the length of the entire rocker arm will be longer.

[0033] In order to prevent the second rocker arm section 7 from swinging left and right during the extension and retraction process, that is, to achieve a relatively stable and reliable extension and retraction effect, a second long hole 72 is provided on the second rocker arm section 7 below the third hinge hole 71. The second pin shaft 6 is passed through the second long hole 72 and the third long hole 33. At the initial position (when the auxiliary telescopic jack 4 is not in action), the bottoms of the second long hole 72 and the third long hole 33 overlap, and the second pin shaft 6 is fixed on the first rocker arm section 3 and located at the bottoms of the second long hole 72 and the third long hole 33. In this way, during the extension and retraction process of the second rocker arm section 7, due to the restriction of the second pin shaft 6, the second long hole 72 and the second pin shaft 6 are guided and slidably matched, and the second rocker arm section 7 will not swing left and right. When the second rocker arm section 7 is extended to the point where the second pin shaft 6 contacts the top of the second long hole 72, the second rocker arm section 7 will not be able to extend any further. Therefore, the second pin shaft 6 not only constitutes a guiding structure for guiding the extension and retraction of the second rocker arm section 7, but also constitutes a limiting structure for limiting the extension and retraction limit of the second rocker arm section 7.

[0034] A second hinge hole 73 and a first long hole 74 are also provided on the second rocker arm segment 7. The clamping portion 10 is located between the two plates of the second rocker arm segment 7. The clamping portion 10 includes a clamping plate 103 for achieving surface-to-surface contact with the side guard plate, and a connecting plate 104 vertically connected to the clamping plate 103. The connecting plate 104 is provided with a pin hole 101 and a first hinge hole 102. During installation, the first hinge hole 102 and the second hinge hole 73 are aligned, and the first hinge shaft 8 is inserted into the two hinge holes, so as to realize the hinged connection between the clamping portion and the second rocker arm segment. Then the pin hole 101 is matched with the first long hole 74. The first long hole 74 is an arc-shaped long hole. The first pin shaft 9 is inserted into the pin hole 101. At the same time, the first pin shaft 9 also passes through the first long hole 74. In this way, when the clamping part 10 rotates around the first hinge shaft 8 relative to the second rocker arm section 7, the first pin shaft 9 rotates accordingly. Due to the limitation of the first long hole 74, the clamping part 10 can only rotate within a certain arc range. Therefore, the first long hole 74 on the second rocker arm section 7 constitutes a limiting structure for limiting the rotation limit of the connecting plate 104. The limiting structure limits the rotation range of the clamping part, so that when the side guard plate is installed, it can adaptively adjust its own angle and maintain surface contact with the side guard plate.

[0035] The use principle of the hydraulic support side guard plate installation device is as follows Figure 8~Figure 11 As shown, corresponding to the center distance brackets of 2.05m, 1.75m, 1.5m, and 1.25m respectively, when installing the side guard plates, first connect the left and right side guard plates to the guide rods and connecting rods, connect the push rods and jacks to the side guard plates, and then use the universal wheel assembly 20 to move the installation device to the outside of the hydraulic support beam and the side guard plates on both sides. After moving into place, extend the bottom lifting jack 18, and support the bottom plate 19 on the ground to ensure the stability of the entire installation device. Then, according to the height of the hydraulic support beam and the side guard plates on both sides, adjust the telescopic degree of the bottom lifting jack 18 and the auxiliary telescopic jack 4, so that the clamping part 10 is located at the most suitable clamping height. After adjustment, extend the installation jack 1, and the rocker arms on both sides rotate around the second hinge shaft 11. Finally, the clamping plate 103 contacts the side guard plate, and the side guard plate is pushed from the position 12' to the position 12. The side guard plate is assembled into place using the pin shaft. During this process, the clamping part 10 will rotate adaptively to adjust the angle between it and the second rocker arm section, thereby achieving surface contact with the side guard plate 12.

[0036] The hydraulic support side guard plate installation device of the present invention adopts a clamping plate that realizes surface-to-surface contact with the side guard plate, and has a large contact area, thereby being able to minimize local deformation and damage of the side guard plate, and ensuring the use effect of the side guard plate. In addition, the clamping part is hingedly connected to the rocker arm, and during the rotation of the rocker arm, the clamping part can also rotate, so that the clamping plate can realize surface-to-surface contact with the side guard plate, and the clamping effect is ensured.

[0037] The hydraulic support side guard plate installation device of the present invention can realize the installation of side guard plates of supports with different center distances. Through the cooperation of the bottom lifting jack 18 and the auxiliary telescopic jack 4, it can also realize the installation of side guard plates of beams with different heights. In addition, by moving the installation device through universal wheels, the heavy beam and side guard plates do not need to be moved back and forth, so it is more convenient to use and the installation efficiency of the side guard plates is higher.

[0038] In addition, the middle cross beam 16 is also provided with the same mounting structure for hingedly mounting the rocker arm. When in use, a suitable cross beam can be selected according to the length of the side guard plate. For example, when the length of the side guard plate is shorter, the rocker arm can be installed on the middle cross beam and the end cross beam. Therefore, the hydraulic support side guard plate mounting device of the present invention has strong adaptability.

[0039] In other embodiments of the hydraulic support side guard plate installation device: there may be four or only two cross beams on the installation frame, which can be adjusted according to needs; the installation frame may not be provided with a bottom lifting jack, and the universal wheels may be locked to fix the device when in use; the installation frame may not be provided with universal wheels, and the entire device may be lifted and moved to the installation position when in use; the first rocker arm segment may not be provided with a third long hole, but a hinged circular hole corresponding to the third hinged hole on the second rocker arm segment may be provided, and the second rocker arm segment and the first rocker arm segment are hinged by the cooperation of the hinged circular hole and the third hinged hole. At this time, the guide structure on the first rocker arm segment may be a pin directly welded and fixed to the first rocker arm segment; the second long hole may not be provided on the second rocker arm segment, and at this time, it can be directly welded on the second rocker arm segment. A fixed pin shaft, in this case, the guiding structure on the first rocker arm section can be a guiding long hole for guiding the movement of the pin shaft; the first rocker arm section and the second rocker arm section can be integrated, that is, the total length of the rocker arm is not adjustable, and in this case, there is no need to set a second power output component; the pin hole may not be set on the connecting plate, and in this case, the first pin shaft can be directly welded and fixed on the connecting plate; an arc-shaped long hole can be set on the connecting plate, and in this case, the limiting structure on the rocker arm for limiting the rotation limit of the connecting plate can be a pin shaft directly welded and fixed on the rocker arm, and the pin shaft passes through the arc-shaped long hole; the clamping part can only include a clamping plate, and in this case, the clamping plate is directly hingedly connected to the rocker arm, and in this case, there is no need to set a limiting structure for limiting the rotation limit of the clamping plate on the rocker arm; the first power output component and the second power output component can also be both hydraulic cylinders or cylinders.

Claims

1. A side guard plate mounting device for a hydraulic support, comprising a mounting frame and a rocker arm hinged on the mounting frame, one end of the rocker arm is connected to a first power output component for controlling the rotation of the rocker arm, and the other end is provided with a clamping portion for clamping the side guard plate, characterized in that: The clamping part is hingedly connected to the rocker arm, and the clamping part includes a clamping plate for achieving surface-to-surface contact with the side guard plate; the rocker arm includes a first rocker arm section and a second rocker arm section telescopically connected through a second power output component, the first rocker arm section is hingedly connected to the first power output component, and the second rocker arm section is hingedly connected to the clamping part, and the mounting frame is connected to a universal wheel for facilitating the movement of the mounting frame.

2. The hydraulic support side guard plate installation device according to claim 1 is characterized in that: The clamping part also includes a connecting plate vertically connected to the clamping plate, a first hinge hole is arranged on the connecting plate, a second hinge hole corresponding to the first hinge hole is arranged on the rocker arm, the connecting plate and the rocker arm are hingedly connected by a first hinge shaft installed in the first and second hinge holes, and a limiting structure for limiting the rotation limit of the connecting plate is also arranged on the rocker arm.

3. The hydraulic support side guard plate installation device according to claim 2 is characterized in that: The connecting plate is also provided with a pin hole, in which a first pin shaft is installed, and the limiting structure is a first long hole for the first pin shaft to pass through.

4. The hydraulic support side guard plate installation device according to any one of claims 1 to 3, characterized in that: The second rocker arm segment is provided with a third hinge hole for being hingedly connected to the first rocker arm segment, and the first rocker arm segment is provided with a guide structure for guiding and retracting the second rocker arm segment.

5. The hydraulic support side guard plate installation device according to claim 4 is characterized in that: The second rocker arm segment is also provided with a second long hole, and the guide structure is a second pin shaft which is provided on the first rocker arm segment and passes through the second long hole.

6. The hydraulic support side guard plate installation device according to any one of claims 1 to 3, characterized in that: The mounting frame is also connected with a bottom lifting jack which is used to extend out to fix the mounting frame after the mounting frame is moved into position by the universal roller.

7. The hydraulic support side guard plate installation device according to any one of claims 1 to 3, characterized in that: The mounting frame comprises a cross beam for hingedly mounting the rocker arm, and at least three cross beams are arranged in parallel and spaced apart to accommodate the installation of side guard plates of different lengths.

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