CN-122025450-A - Scram switching device and hydraulic support electric control device

CN122025450ACN 122025450 ACN122025450 ACN 122025450ACN-122025450-A

Abstract

The invention relates to the technical field of emergency stop switches, in particular to an emergency stop switch device and a hydraulic support electric control device. According to the invention, the push rod is adopted to trigger the two independent switches respectively through different movement combinations, so that the integration of operation is realized, and the compactness and integration of the switching device are obviously improved while the function of the switching device is ensured. In practical application, for example, as an emergency stop locking device of the device, an operator can respectively send out different control instructions through linear pressing or rotating actions of the push rod, so as to meet various safety requirements. The whole device has compact structure, small number of parts, convenient installation, simple maintenance and lower cost, and is suitable for occasions with limited space.

Inventors

LI YUNXIAN
CHEN SHUO
NAN BEITONG
WANG ZHENGKE
LI SHILIN
BAI JINLONG
SONG ZHENG
Kang Ziyuan
LI HAOYE
HAN YUCHEN

Assignees

中煤北京煤矿机械有限责任公司

Dates

Publication Date: 20260512
Application Date: 20260313

Claims (10)

1. The emergency stop switch device is characterized by comprising a push rod seat (1), a push rod (3) axially and slidably connected to the push rod seat (1), a push trigger switch (4) and a rotary trigger switch (5) which are positioned at the bottom of the push rod seat (3); The push rod (3) can be switched in a sliding manner between a first position and a second position, wherein the push rod (3) is far away from the rotary trigger switch (5) and the push trigger switch (4) in the first position; the push rod (3) can also be axially rotated and switched between a pushing trigger angle and a rotation trigger angle; When the push rod (3) is switched from the first position to the second position under the pressing trigger angle, the push rod (3) can press the trigger part of the pressing trigger switch (4); When the push rod (3) is in the first position and the push rod (3) rotates from the pushing trigger angle to the rotation trigger angle, the push rod (3) can press the trigger part of the rotation trigger switch (5).
2. The scram switching device as claimed in claim 1, wherein the lower end of the push rod (3) is a contact portion (3 a), the contact portion (3 a) being disposed eccentrically with respect to the axis of the push rod (3); The contact part (3 a) is provided with a pressing inclined surface (3 b); At the pressing trigger angle, the pressing inclined surface (3 b) corresponds to the position of the trigger part of the pressing trigger switch (4), and the contact part (3 a) is separated from the trigger part of the rotating trigger switch (5) so that the pressing inclined surface (3 b) can press the trigger part of the pressing trigger switch (4) when the push rod (3) is switched from the first position to the second position; When the push rod (3) is in the first position and the push rod (3) rotates from the pressing trigger angle to the rotation trigger angle, the contact part (3 a) can press the trigger part of the rotation trigger switch (5).
3. The emergency stop switching device according to claim 2, characterized in that the push-down trigger switch (4) and the rotation trigger switch (5) can be fixedly connected to the bottom of the push rod seat (1); An accommodating space is formed between the triggering part of the downward-pressing triggering switch (4) and the triggering part of the rotating triggering switch (5), the triggering parts of the downward-pressing triggering switch and the rotating triggering switch face the accommodating space, and the contact parts (3 a) are located in the accommodating space in the first position and the second position.
4. The emergency stop switch device according to claim 2, wherein the push rod seat (1) has a limiting portion (1 b), and in the second position, the limiting portion (1 b) abuts against the push rod (3) to limit a limit position of sliding of the push rod (3) in the push rod seat (1) direction.
5. The emergency stop switching device according to claim 2, further comprising a stop (6), the stop (6) being adapted to limit the axial position of the push rod (3) when the push rod (3) is in the first and second positions.
6. The emergency stop switching device according to claim 5, characterized in that the limit piece (6) comprises a limit head (61) and an elastic piece (62); the push rod seat (1) is radially provided with a mounting hole (1 a), the limit head (61) is slidably connected in the mounting hole (1 a), and the elastic piece (62) is suitable for providing elastic force for the limit head (61) to slide towards the push rod (3); the push rod (3) is provided with a first limiting hole (3 c) and a second limiting hole (3 d), and the first limiting hole and the second limiting hole are distributed at intervals along the axial direction of the push rod (3); The limiting head (61) can be clamped into the first limiting hole (3 c) so that the push rod (3) can be kept at the first position, and the limiting head (61) can be clamped into the second limiting hole (3 d) so that the push rod (3) can be kept at the second position.
7. The emergency stop switching device according to claim 6, characterized in that at the depression triggering angle and/or the rotation triggering angle there is the limiting member (6), the limiting member (6) being able to limit the angular position of the push rod (3) when the push rod (3) is turned to the depression triggering angle and/or the rotation triggering angle.
8. The emergency stop switch device according to claim 1, further comprising a pressing sleeve (7) screwed on the push rod seat (1), wherein the pressing sleeve (7) is sleeved outside the push rod (3), and the end part of the push rod (3) far away from the push rod seat (1) extends out of the pressing sleeve (7); the pressing sleeve (7) radially outwards extends to form a pressing ring (71), and a clamping structure capable of fixing the scram switch device is formed between the pressing ring (71) and the pressing sleeve (7).
9. The emergency stop switching device according to claim 1, further comprising an operating knob (8), said operating knob (8) being fixedly connected to the end of said push rod (3) remote from said push rod seat (1).
10. An electrically controlled device for hydraulic supports, comprising a scram switching device as claimed in any one of claims 1 to 9.

Description

Scram switching device and hydraulic support electric control device Technical Field The invention relates to the technical field of emergency stop switches, in particular to an emergency stop switch device and a hydraulic support electric control device. Background The hydraulic support electrohydraulic control device is used as a core component for controlling the hydraulic support, and the scram switch of the electrohydraulic control device directly controls the working state of the hydraulic support, thereby having important effect on safe production. Because of the special environment of the underground working face, the emergency stop switch is required to have better protection and sealing performance and quick response. Usually, the emergency stop switch drives devices such as an internal electric shock switch and the like by pushing an emergency stop operation button, and converts the devices into an electric signal so as to realize an emergency stop function. Along with the construction of intelligent mine and the limitation of mining face mining height and the like, smaller volume requirements are put forward on the electrohydraulic control device of the hydraulic support, which means that the emergency stop switching device also needs to be more compact in structure and more integrated in function. The emergency stop switch device of the existing partial hydraulic support electrohydraulic control device has single function, only has the emergency stop function, and is also required to be independently provided with a locking function key on the control device, so that the function integration is not realized. Meanwhile, the scram switch device of part of the electrohydraulic control device of the hydraulic support is large in size, complex in structure and complex in assembly, and occupies the internal space of the control device. Disclosure of Invention First, the technical problem to be solved In view of the above-mentioned shortcomings and disadvantages of the prior art, the present invention provides a scram switch device and a hydraulic support electric control device, which solve the technical problems of large scram switch volume and low integration level in the prior art. (II) technical scheme In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps: in a first aspect, the invention provides an emergency stop switch device, which comprises a push rod seat, a push rod axially connected to the push rod seat in a sliding manner, and a push trigger switch and a rotary trigger switch which are positioned at the bottom of the push rod seat; the push rod can be switched between a first position and a second position in a sliding way, and the push rod is far away from the rotary trigger switch and the push trigger switch in the first position; The push rod can also axially rotate and switch between a pushing trigger angle and a rotating trigger angle; Under the pressing trigger angle, when the push rod is switched from the first position to the second position, the push rod can press the trigger part of the pressing trigger switch; when the push rod is in the first position and the push rod rotates from the pressing trigger angle to the rotating trigger angle, the push rod can squeeze the trigger part of the rotating trigger switch. In one technical scheme of the invention, the lower end of the push rod is a contact part, and the contact part is eccentrically arranged relative to the axis of the push rod; the contact part is provided with a downward pressing inclined surface; under the condition of the downward pressing trigger angle, the downward pressing inclined surface corresponds to the position of the trigger part of the downward pressing trigger switch, and the contact part is separated from the trigger part of the rotary trigger switch, so that the downward pressing inclined surface can squeeze the trigger part of the downward pressing trigger switch when the push rod is switched from the first position to the second position; When the push rod is in the first position and the push rod rotates from the pressing trigger angle to the rotation trigger angle, the contact part can squeeze the trigger part of the rotation trigger switch. In one technical scheme of the invention, the push trigger switch and the rotary trigger switch can be fixedly connected to the bottom of the push rod seat, a containing space is formed between the trigger part of the push trigger switch and the trigger part of the rotary trigger switch, the trigger parts of the push trigger switch and the rotary trigger switch face the containing space, and the contact parts are positioned in the containing space in the first position and the second position. In one technical scheme of the invention, the push rod seat is provided with a limiting part, and the limiting part is abutted with the push rod at the second position so as to limit the limit position of the