Anti-tilting device for flexible connection top beam of hydraulic support
By setting jacks between hydraulic brackets and using the interlaced connection between the D-shaped shackles and the ring chain, the problem of vulnerability of jacks caused by traditional hard connections is solved, and a more practical soft connection method is achieved, protecting the equipment and improving adaptation. and guidance performance.
Patent Information
- Application Number
- CN202323626583.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The traditional hydraulic support beam anti-reflection device is hard-connected, resulting in easy damage to the anti-reflection jack and the anti-reflection ear seat. A connection form that can reduce direct interaction forces is needed to avoid damage.
By adopting a soft connection method, by setting a jack between two adjacent hydraulic brackets, one end of the jack and the ear seat on the corresponding hydraulic bracket are arranged interlaced with the ring chain through a D-shaped shackle to form a soft connection, and a D-shaped Shackles and ring chains release the force transmitted by the jack to avoid direct transmission to the ear holder.
It effectively protects jacks and other components to prevent damage, improves adaptability and guidance performance, avoids jacks stuck when the hydraulic bracket is pulled, and extends the service life of the equipment.
Smart Images
Figure CN222228588U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic supports for mines, in particular to a hydraulic support soft-connected top beam anti-falling device. Background Art
[0002] When the slope of the coal mining face changes too much, a single hydraulic support is prone to tilt or even fall over; in this case, by combining the top beams and bases of multiple supports and increasing the contact area between the top and bottom plates, the hydraulic support tilt and fall phenomenon can be significantly avoided. The traditional hydraulic support top frame anti-fall device is directly connected to the anti-fall lug seat through the anti-fall jack. This connection method is usually called a hard connection. The disadvantage of this connection method is that the thrust and pull of the anti-fall jack are directly transmitted to the anti-fall lug seat, and the anti-fall jack and the anti-fall lug seat are prone to hard collision, and the anti-fall jack is very easy to be damaged. Therefore, a connection form that can reduce the direct interaction force between the lug seat and the jack is needed. Utility Model Content
[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a hydraulic support soft-connected top beam anti-falling device, by arranging a jack between two adjacent hydraulic supports, one end of the jack and the corresponding hydraulic support upper ear seat are staggered through the D-shaped shackle and the round link chain to form a soft connection mode; so that the jack and other connected components are not damaged.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hydraulic support soft-connected top beam anti-falling device, including at least one group of soft-connected structures connecting any two adjacent hydraulic support top beams; any two adjacent hydraulic supports include a support top beam and a support second top beam; the same group of soft-connected structures include connecting parts respectively arranged on the support top beam and the support second top beam, the support top beam connecting part is movably connected to one end of the anti-falling jack, the other end of the anti-falling jack is hinged to a first D-shaped shackle, the first D-shaped shackle is hinged to a circular link chain, the circular link chain is hinged to a second D-shaped shackle, and the second D-shaped shackle is movably connected to the support second top beam connecting part.
[0005] Furthermore, the connecting part includes a sleeve arranged on the top beam of bracket one or the top beam of bracket two, a telescopic shaft that can slide up and down is arranged in the sleeve, and both the sleeve and the telescopic shaft are provided with an axial hole perpendicular to the axis direction, and a pin shaft for locking is arranged in the axial hole.
[0006] Furthermore, a section of the telescopic shaft beyond the bottom of the sleeve is provided with a limiting hole along the arrangement direction of two adjacent hydraulic supports, a limiting sleeve is provided in the limiting hole, and an anti-reversal shaft is provided in the limiting sleeve.
[0007] Furthermore, a section of the telescopic shaft beyond the bottom of the sleeve is provided with a limiting hole along the arrangement direction of two adjacent hydraulic supports, a limiting sleeve is provided in the limiting hole, and an anti-reversal shaft is provided in the limiting sleeve.
[0008] Furthermore, the anti-reversal shaft is rotatably connected to the limiting sleeve.
[0009] Furthermore, a first ear seat and a second ear seat are respectively provided at both ends of the anti-reversal shaft, and both the first ear seat and the second ear seat are provided with hinge holes; the anti-reversal jack includes a hydraulic cylinder and a piston rod, and a connecting plate is provided at the bottom end of the hydraulic cylinder and the end of the piston rod away from the hydraulic cylinder, and a hinge hole is also provided on the connecting plate, and the second ear seat on the connecting part corresponding to the top beam of the bracket is hinged to the connecting plate at the bottom of the hydraulic cylinder through a second pin shaft; the connecting plate on the piston rod is hinged to the first D-shaped shackle through the hinge hole thereon.
[0010] Furthermore, the first ear seat of the connecting part corresponding to the second top beam of the bracket is hinged to the second D-shaped shackle through the hinge hole thereon; the lower part of the first top beam of the bracket is connected to the column, and the soft connection structure is located on the front side of the column.
[0011] The beneficial effects of the utility model are as follows: the utility model arranges a jack between two adjacent hydraulic supports, and one end of the jack and an ear seat on the corresponding hydraulic support are staggered to form a soft connection mode through the D-shaped shackle and the round link chain; the structure is more practical and the guiding performance is more outstanding; when the hydraulic support is pulled, the anti-falling jack is not easy to get stuck, which not only protects itself but also does not damage other components, and the force transmitted by the extension and retraction of the anti-falling jack is released through the D-shaped shackle and the round link chain, so that the jack and other connected components are not damaged; the adaptability is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a side view structural schematic diagram of the utility model;
[0013] Figure 2 This is a schematic diagram of the soft connection structure of the utility model;
[0014] Figure 3 It is a partial schematic diagram of the soft connection structure of the utility model.
[0015] In the figure: 1, bracket one top beam; 101, bracket two top beam; 2, column; 3, sleeve; 4, telescopic shaft; 5, shaft hole; 6, pin shaft; 7, limit hole; 8, limit sleeve; 9, anti-reversal shaft; 10, first ear seat; 11, second ear seat; 12, second pin shaft; 13, connecting plate; 14, hydraulic cylinder; 15, piston rod; 16, first D-shaped shackle; 17, round link chain; 18, second D-shaped shackle. DETAILED DESCRIPTION
[0016] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.
[0017] Example:
[0018] like Figure 1-Figure 3 As shown, a hydraulic support soft-connected top beam anti-falling device includes at least one group of soft-connected structures connecting any two adjacent hydraulic support top beams; any two adjacent hydraulic supports include a support top beam 1 and a support second top beam 101; the same group of soft-connected structures include connecting parts respectively arranged on the support top beam 1 and the support second top beam 101, the support top beam 1 connecting part is movably connected to one end of the anti-falling jack, the other end of the anti-falling jack is hinged to the first D-shaped shackle 16, the first D-shaped shackle 16 is hinged to the round link chain 17, the round link chain 17 is hinged to the second D-shaped shackle 18, and the second D-shaped shackle 18 is movably connected to the connecting part of the support second top beam 101; the side length direction of the anti-falling jack is arranged along the arrangement direction of multiple hydraulic supports, such as Figure 1 The right side view of the hydraulic support is shown. Figure 1 The left side in the figure is the front end of the hydraulic support.
[0019] By arranging a jack between two adjacent hydraulic supports, one end of the jack and the ear seat on the corresponding hydraulic support are connected in a soft connection manner through the staggered arrangement of D-shaped shackles and round chain; the structure is more practical and the guiding performance is more outstanding; when the hydraulic support is pulled, the anti-falling jack is not easy to get stuck, which not only protects itself but also does not damage other parts. The force transmitted by the extension and retraction of the anti-falling jack is released through the D-shaped shackle and the round chain, so that the jack and other connected components are not damaged; it has better adaptability.
[0020] The connecting part includes a sleeve 3 arranged on the top beam 1 of the first bracket or the top beam 101 of the second bracket, and a telescopic shaft 4 that can slide up and down is arranged in the sleeve 3. Both the sleeve 3 and the telescopic shaft 4 are provided with an axial hole 5 perpendicular to the axis direction, and a pin shaft 6 for locking is arranged in the axial hole 5.
[0021] The lower part of the telescopic shaft 4 is arranged beyond the bottom of the sleeve 3 .
[0022] A section of the telescopic shaft 4 that exceeds the bottom of the sleeve 3 is provided with a limiting hole 7 along the arrangement direction of two adjacent hydraulic supports, a limiting sleeve 8 is arranged in the limiting hole 7, and an anti-reversal shaft 9 is arranged in the limiting sleeve 8.
[0023] The anti-reversal shaft 9 is rotatably connected to the limiting sleeve 8 .
[0024] A first ear seat 10 and a second ear seat 11 are respectively arranged at both ends of the anti-reversal shaft 9, and both of the first ear seat 10 and the second ear seat 11 are provided with hinge holes; the anti-reversal jack includes a hydraulic cylinder 14 and a piston rod 15, and a connecting plate 13 is arranged at the bottom end of the hydraulic cylinder 14 and the end of the piston rod 15 away from the hydraulic cylinder 14, and a hinge hole is also arranged on the connecting plate 13, and the second ear seat 11 on the connecting part corresponding to the bracket-top beam 1 is hinged to the connecting plate 13 at the bottom of the hydraulic cylinder 14 through a second pin shaft 12, and the second pin shaft 12 passes through the hinge hole on the connecting plate 13 and the second ear seat 11; the connecting plate 13 on the piston rod 15 is hinged to one end of the first D-shaped shackle 16 through the hinge hole thereon.
[0025] The first ear seat 10 of the connecting part corresponding to the second top beam 101 of the bracket is hinged to the second D-shaped shackle 18 through the hinge hole thereon; the lower part of the first top beam 1 of the bracket is connected to the column 2, and the soft connection structure is located on the front side of the column 2; the first ear seat 10 and the second ear seat 11 are both welded by a plate with a thickness of 30mm and a plate with a thickness of 40mm, with a simple structure and easy manufacturing; the first ear seat 10 and the second ear seat 11 are fixed to the top beam through the anti-reversal shaft 9, the sleeve 3 and the pin 6; the distance between two adjacent sleeves 3 is 1500mm, and the distance between the second ear seat 11 corresponding to the first top beam 1 of the bracket and the first ear seat 10 corresponding to the second top beam 101 of the bracket is 1140mm.
[0026] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.
Claims
1. A hydraulic support soft-connect top beam anti-fall device, characterized by: The invention comprises at least one group of soft connection structures for connecting any two adjacent hydraulic support top beams; any two adjacent hydraulic supports comprise a support top beam (1) and a support top beam (101); the same group of soft connection structures comprises connection parts respectively arranged on the support top beam (1) and the support top beam (101); the connection part of the support top beam (1) is movably connected to one end of an anti-falling jack; the other end of the anti-falling jack is hinged to a first D-shaped shackle (16); the first D-shaped shackle (16) is hinged to a round link chain (17); the round link chain (17) is hinged to a second D-shaped shackle (18); and the second D-shaped shackle (18) is movably connected to the connection part of the support top beam (101).
2. The hydraulic support soft-connected top beam anti-fall device according to claim 1 is characterized by: The connecting portion comprises a sleeve (3) arranged on the first bracket top beam (1) or the second bracket top beam (101), a telescopic shaft (4) capable of sliding up and down is arranged in the sleeve (3), the sleeve (3) and the telescopic shaft (4) are both provided with an axial hole (5) perpendicular to the axis centerline direction, and a pin shaft (6) for locking is arranged in the axial hole (5).
3. The hydraulic support soft-connected top beam anti-falling device according to claim 2 is characterized by: The bottom of the telescopic shaft (4) is arranged beyond the bottom of the sleeve (3).
4. The hydraulic support soft-connected top beam anti-falling device according to claim 3 is characterized by: A section of the telescopic shaft (4) extending beyond the bottom of the sleeve (3) is provided with a limiting hole (7) along the arrangement direction of two adjacent hydraulic supports, a limiting sleeve (8) is provided in the limiting hole (7), and an anti-reversal shaft (9) is provided in the limiting sleeve (8).
5. The hydraulic support soft-connected top beam anti-falling device according to claim 4 is characterized by: The anti-reversal shaft (9) is rotatably connected to the limiting sleeve (8).
6. The hydraulic support soft-connected top beam anti-falling device according to claim 5 is characterized by: A first ear seat (10) and a second ear seat (11) are respectively arranged at both ends of the anti-reversal shaft (9), and both the first ear seat (10) and the second ear seat (11) are provided with hinge holes; the anti-reversal jack comprises a hydraulic cylinder (14) and a piston rod (15), and a connecting plate (13) is arranged at the bottom end of the hydraulic cylinder (14) and the end of the piston rod (15) away from the hydraulic cylinder (14), and the connecting plate (13) is also provided with a hinge hole; the second ear seat (11) on the connecting portion corresponding to the bracket-top beam (1) is hinged to the connecting plate (13) at the bottom of the hydraulic cylinder (14) through a second pin shaft (12); the connecting plate (13) on the piston rod (15) is hinged to the first D-shaped shackle (16) through the hinge hole thereon.
7. The hydraulic support soft-connected top beam anti-falling device according to claim 6 is characterized by: The first ear seat (10) of the connection part corresponding to the second top beam (101) of the bracket is hinged to the second D-shaped shackle (18) through the hinge hole thereon; the lower part of the first top beam (1) of the bracket is connected to the column (2), and the soft connection structure is located on the front side of the column (2).