CN110588715B

CN110588715B - Moving spring spanner

Info

Publication number: CN110588715B
Application number: CN201911020623.4A
Authority: CN
Inventors: 毛湘武; 王胜慧; 郭智慧; 郭智薪; 张鹏飞; 赵保刚
Original assignee: Mao Nanxiang
Current assignee: Mao Nanxiang
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2024-05-31
Anticipated expiration: 2039-10-25
Also published as: CN110588715A

Abstract

The invention discloses a movable spring spanner, which comprises a box body 1, wherein a short shaft sleeve 8 and a long shaft sleeve 12 which are positioned on the same axis are fixedly arranged on two side plates of the box body 1, a long shaft 14 is inserted in the long shaft sleeve 12, the outer end of the long shaft 14 is connected with a handle 17, the inner end of the long shaft 14 is connected with a swinging arm 4, a short shaft 9 is inserted in the short shaft sleeve 8, the inner end of the short shaft 9 is connected with a driven arm 13, and a nut 24 is screwed at the outer end of the short shaft 9; a swinging shaft 6 is arranged between the swinging arm 4 and the driven arm 13, a joint bearing 5 is arranged on the swinging shaft 6, the rod end of the joint bearing 5 is connected with one end of a connecting rod 10, and the other end of the connecting rod 10 penetrates out of the box body 1 and then is connected with a horn 11. The invention has reasonable design, compact structure of the spanner, reliable positioning, convenient installation and convenient operation, is used for further improving and improving the facilities of the underground auxiliary transportation system, and has good practical application value.

Description

Moving spring spanner

Technical Field

The invention relates to the technical field of coal mine transportation machinery and processing, in particular to a movable spring trigger applied to a mine underground rail transportation system.

Background

The turnout is a line connection device for transferring rolling stock from one track to another track, is one of weak links of the track, and is generally laid in a large number at stations and marshalling stations. The turnout can fully exert the passing capability of the line, even if the railway is a single-track railway, the turnout is paved, and a section of fork line which is longer than the length of the train is built, so that the train can be split. The switch plays an important role on the railway line.

At present, with the gradual upgrade of the standard of the rail-type transportation control system of the mine, new requirements are put forward for the upgrade and reconstruction of the control facility update standard of the transportation system, and the rail-type transportation control system is safe, standard, reliable in control, convenient to operate and listed as standard requirements.

Disclosure of Invention

The invention aims to provide a novel movable spring trigger applied to underground railway transportation operation turnout of a mine.

The invention is realized by adopting the following technical scheme:

The movable spring spanner comprises a box body, wherein a short shaft sleeve and a long shaft sleeve which are positioned on the same axis are fixedly arranged on two side plates of the box body, a long shaft is inserted into the long shaft sleeve, the outer end of the long shaft is connected with a handle, the inner end of the long shaft is connected with a swing arm, a short shaft is inserted into the short shaft sleeve, the inner end of the short shaft is connected with a driven arm, and a nut is screwed at the outer end of the short shaft; a swinging shaft is arranged between the swinging arm and the driven arm, a joint bearing is arranged on the swinging shaft, the rod end of the joint bearing is connected with one end of a connecting rod, and the other end of the connecting rod penetrates out of the box body and then is provided with a connecting part; the box body is internally provided with a smooth shaft, the smooth shaft is positioned above the swinging shaft and is vertical to the swinging shaft in space, the smooth shaft is provided with a linear bearing sleeve, a sleeve is arranged outside the linear bearing sleeve, the sleeve is connected with one end of a movable spring through a tension spring bolt, and the other end of the movable spring is connected in a tension spring groove of the swinging shaft.

The switch has the function of controlling the switch by adjusting the opening and closing positions of fork tines, so that the vehicle can change direction left and right to control the driving route of the mine car, the switch is an operating mechanism and is an executing device for controlling the switch, and the operating handle is used for driving the switch to move after rotating the swing arm through the rotating shaft (long shaft), and the swing shaft between the swing arm and the driven arm swings along with the arm to drive the connecting rod and the connecting part to move. According to the working condition requirement of the switch opening and closing displacement, the movable spring switch changes the rotation stroke of the swinging shaft into linear displacement through the connecting rod and the connecting part hinge mechanism, the switch opening and closing displacement control of the switch is completed, and the positioning of the starting point and the ending point is automatically locked through the tension spring mechanism on the swinging shaft.

The invention has the following advantages:

1. The structure of the invention adopts a sliding sleeve translation type movable spring mechanism, and the movable spring mechanism is characterized in that the traction end of a movable spring swings, the tension end slides and translates along a guide rod (smooth shaft), when the movable spring enters into operation, two end points do translational displacement according to the respective set track, the axial lead of the guide rod and the angular bisector of the swinging travel angle are vertically arranged, the starting point of the swinging end corresponds to the turnout closing position through a connecting rod, and the opening and closing point after the change is necessarily corresponding to the end point of the swinging end, so that travel linkage is realized. In addition, the torque output characteristic of the sliding sleeve translational type movable spring mechanism is that the starting point is maximum, the inflection point is zero, the end point is maximum, the torque is converted into the close force of the turnout in a proportional effect, and the close force is matched with the working condition required by the turnout, so that the spring force is fully utilized, the mechanism efficiency is greatly improved, the efficiency of the movable tension point is increased by a plurality of times compared with that of the fixed tension point, and the efficiency is improved by 2-3 times. Is a fundamental change to the traditional rotary tension spring mechanism. The traction end of the rotary tension spring mechanism swings, and the tension end is fixed. Due to the restriction of the stress direction, the spring force cannot be effectively utilized, and the efficiency is extremely low, namely, only 0.2-0.25.

2. The swing shaft adopts a double-arm (swing arm and driven arm) double-pivot structure in structural design. The stress is reasonable and the resistance is small.

3. The sliding sleeve guide rod of the movable spring mechanism is arranged at the top end of the device and occupies a good working position.

4. The foldable operating handle is adopted, the height dimension is telescopic, the operation is convenient, and the occupied height of facilities is reduced.

5. The sliding sleeve adopts a linear bearing to enable the movable spring mechanism to be more sensitive and portable.

6. The push-pull connecting rod adopts the knuckle bearing to better adapt to the space curve travel requirement in the turnout operation process, and the push-pull connecting rod is free to drive and has no blocking obstacle.

7. The axle support adopts box combination formula, makes the structure lighter.

The invention has reasonable design, compact structure of the spanner, reliable positioning, convenient installation and convenient operation, is used for further improving and improving the facilities of the underground auxiliary transportation system, and has good practical application value.

Drawings

Fig. 1 shows a top view of the trigger.

FIG. 2 shows a schematic cross-sectional view of the trigger.

Fig. 3 shows a schematic view of the connecting rod in a contracted state.

Fig. 4 shows a schematic view of the connecting rod in a fully extended state.

Fig. 5 shows a schematic view of the connecting rod in a neutral state.

In the figure: 1-box, 2-box cover plate, 3-ear seat, 4-swing arm, 5-joint bearing, 6-swing axle, 7-linear bearing sleeve, 8-short sleeve, 9-short shaft, 10-connecting rod, 11-connecting part, 12-long sleeve, 13-driven arm, 14-long shaft, 15-movable spring, 16-tension spring bolt, 17-handle, 18-sleeve, 19-axle support, 20-fulcrum channel steel, 21-smooth shaft, 22-pin axle, 23-tension spring groove, 24-nut, 25-tension spring and 26-bolt.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The utility model provides a manual operation's movable spring spanner, as shown in fig. 1,2, including box 1, box 1 mainly comprises left and right sides board, preceding backplate, bottom plate etc. four ear seats 3 have been set firmly in box 1 outer four corners, installs box apron 2 through the bolt on the box 1, is equipped with short axle sleeve 8 on the left side board of box, is equipped with long axle sleeve 12 on its right side board, and long axle sleeve 12 consolidates through the fulcrum channel-section steel 20, and short axle sleeve 8 and long axle sleeve 12 are located same axis. The front baffle plate of the box body is provided with a connecting rod through hole and a shaft support hole, the rear baffle plate is provided with a shaft support hole, and the shaft support holes on the front baffle plate and the rear baffle plate are respectively provided with a group of shaft supports 19 through bolts.

As shown in fig. 1 and 2, a long shaft 14 (a rotation shaft) is inserted into the long shaft sleeve 12, the inner end of the long shaft 14 is matched with a shaft hole at the upper end of the swing arm 4, and then the long shaft is connected with the shaft hole through a bolt, and the swing angle (preferably 90 degrees) of the swing arm 4 is realized. The outer end of the long shaft 14 is inserted into a shaft sleeve at the lower end of the handle 17 and fixed through a bolt, the handle 17 is folded and divided into a handle arm I and a handle arm II, a double-lug pin seat is arranged on the handle arm I at the folding position of the lower part of the handle, a single-lug pin seat is arranged on the handle arm II at the folding position of the lower part of the handle, a pin hole is arranged on the double-lug pin seat, a pin bolt is arranged in the pin hole and hinged with the single-lug pin seat to form a folding type, a tension spring 25 is arranged at the folding position of the lower part of the handle, and the lower part of the handle is unfolded (lifted) during operation and automatically folded back (falls down) after the operation is finished. The right end of the handle 17 is provided with a handle grip.

As shown in fig. 1 and 2, a short shaft 9 is inserted into the short shaft sleeve 8, the inner end of the short shaft 9 is connected with the shaft hole at the upper end of the driven arm 13 in an inserted manner, and the outer end of the short shaft 9 penetrates out of the short shaft sleeve 8 and is fastened by screwing a nut 24. The lower ends of the swing arm 4 and the driven arm 13 are respectively provided with a shaft hole, and a swing shaft 6 is arranged between the swing arm 4 and the driven arm 13, so that the swing shaft 6 forms a double-arm double-fulcrum structure, the long shaft sleeve 12 and the short shaft sleeve 8 are uniformly stressed, the shaft sleeve pressure is small, the rotation resistance is small, and the operation is labor-saving. The swing arm is specifically structured that the right end of the swing shaft 6 is inserted into the shaft hole at the lower end of the swing arm 4 and then is fastened by screwing a nut, and the left end of the swing shaft 6 is inserted into the shaft hole at the lower end of the driven arm 13 and then is fixed by a bolt. The oscillating shaft 6 is provided with the oscillating bearing 5, the rod end of the oscillating bearing 5 is connected with one end of the connecting rod 10, namely, one end of the connecting rod is provided with a male thread and is connected with a female threaded hole of the oscillating bearing, the other end of the connecting rod is provided with a male thread, the other end of the connecting rod 10 passes through a connecting rod through hole of the box body 1 and is then connected with a female threaded hole on the connecting part 11, (universal function) adapts to the requirement of space track when the connecting rod is in transmission, so that the transmission process is sensitive and portable, no blocking is blocked, and the efficiency is high. The connecting portion is provided with an ear groove, an ear plate and a pin hole, an ear pin is arranged in the pin hole and connected with a flat head body of the connecting bolt, a bolt body at the other end of the connecting bolt is connected with a switch tongue push-pull plate, and a groove nut is assembled on the upper portion of the bolt.

As shown in fig. 1 and 2, a smooth shaft 21 (linear optical axis) is installed in the box 1, that is, two ends of the smooth shaft 21 are installed in a shaft support 19, one of the shaft supports is installed in a shaft support hole position of a front baffle of the box and is connected by a bolt, a jackscrew ear seat is arranged below the shaft support, a tensioning jackscrew is installed on the jackscrew ear seat to adjust the force of the movable spring 15, the other shaft support is installed in a shaft support hole position of a rear baffle of the box and is connected by a bolt, a jackscrew ear seat is arranged below the shaft support, and the jackscrew ear seat is installed on the tensioning jackscrew to adjust the force of the movable spring 15. The slide shaft 21 is located above the swing shaft 6 and is spatially perpendicular to the swing shaft 6. The smooth shaft 21 is provided with a linear bearing sleeve 7, a linear bearing is arranged in the linear bearing sleeve 7, two ends of the linear bearing sleeve are fixed by shaft check rings, a sleeve 18 is arranged outside the linear bearing sleeve 7, the sleeve 18 is connected with the upper end of the movable spring 15 through a tension spring bolt 16, the tension spring bolt 16 is arranged in double lugs of the sleeve 18, and the lower end of the movable spring 15 is connected in a tension spring groove 23 of the swinging shaft 6. When the swinging shaft 6 swings, the movable spring 15 tracks the swinging track to translate and stretch, and keeps in an elastic constant moment state in the whole swinging stroke, and sensitive reversing at the inflection point is realized.

In specific implementation, 1 linear optical axis (model SF20 multiplied by 300), 2 shaft supports (model SHF 20), 1 linear bearing (model LM 20) and 1 tie rod end joint bearing (model SI 25T/K) are directly outsourced.

During assembly and combination, firstly, the swing arm, the swing shaft, the joint bearing, the movable spring and the driven arm are sequentially assembled, then the shaft support is arranged on the box body, then the linear bearing sleeve (the sliding sleeve) and the linear bearing are assembled, then the sliding sleeve assembly and the linear optical axis are sequentially arranged on the shaft support, then the driven arm is arranged in the short shaft sleeve on the box body after being arranged in the short shaft sleeve, the driven arm is fastened by the locking nut, then the swing shaft is arranged in the swing arm while penetrating the long shaft sleeve of the box body, the bolt is fixed, then the shaft sleeve of the handle is arranged at the outer end of the swing shaft, the bolt is fixed, then the bolt pins are fixed on the two handle arms (folding positions), and then the connecting rod, the connecting part and the connecting bolt are sequentially assembled and then are arranged on the joint bearing. And then the movable spring is connected with the sliding sleeve group in a hanging way, and then the tension spring tensioning jackscrew is arranged in the jackscrew lug and the tensioning force of the movable spring is adjusted. And finally, installing the box cover plate and fixing by bolts.

When the switch is in operation, a person pulls the handle to swing the long shaft (the rotating shaft) to swing left and right, and then drives the rotating shaft to rotate, so as to drive the swinging shaft and the connecting rod to drive the switch to move. The switch has the function that the opening and closing positions of fork tines are adjusted, so that the vehicle is reversed left and right, the driving route of a mine car is controlled, the switch is an operating mechanism, the switch is an executing device for controlling the switch, and the operating handle is used for driving the switch to move after the operating handle rotates the swing arm through the rotating shaft, and the swing shaft on the swing arm swings along with the arm. The swinging shaft is also controlled by a sliding tension spring mechanism, one end of a working spring (a movable spring) swings along the swinging shaft, the other end of the working spring linearly translates along the sliding sleeve, the movement track of the working spring and the sliding sleeve are set in the same plane, when the working spring swings along the swinging shaft, the track of the swinging end of the working spring is a circular arc line, the other end of the working spring is a straight line, the distance line between the two lines is the working track line of the movable spring and changes along with the change of the swinging angle, the movable spring stretches and contracts along with the swinging angle, elastic energy is stored and the spring force is output, the mechanism has reasonable stress characteristics, high output force efficiency, portability, flexibility and high efficiency, and the mechanism has the advantages that the spring force utilization rate is high, the efficiency of the movable tension point is compared with that of the fixed tension point, the movable tension point is increased by a plurality of times, and the efficiency is improved by 2-3 times. The guide rod (smooth shaft) and the swinging shaft are designed according to a certain eccentric distance, when the swinging arm rotates, the distance between the swinging shaft and the sliding sleeve of the movable spring changes according to the rotating position, the farthest point is selected as the middle point of the moving stroke of the turnout, the front symmetrical point and the rear symmetrical point of the farthest point are selected as the starting point and the finishing point of the moving stroke of the turnout, and the positioning and locking are realized by utilizing the shrinkage function of the tension spring according to the track of the distances between the middle point, the starting point and the finishing point, which are shortened from the length of the guide rod of the tension spring. The connecting rods are automatically locked by the movable springs in the extending or retracting state, and particularly as shown in fig. 3, the connecting rods are in the retracting state at the moment and can be determined as the starting point of the turnout moving stroke, the linear bearing is positioned at one end of the linear optical axis, and the movable springs are positioned at the left part in the figure to position and lock the swinging arms; as shown in fig. 4, the pull rod is in an extended state (the swing arm is obtained by swinging the swing arm counterclockwise by 90 degrees from the state in fig. 3) and can be determined as the end point of the turnout moving stroke, the linear bearing is positioned at the other end of the linear optical axis (the linear bearing moves from one end to the other end on the linear optical axis), and the movable spring position (is positioned at the right part in the figure) is used for positioning and locking the swing arm; as shown in FIG. 5, the connecting rod is in an intermediate state, namely an intermediate state after the swing arm rotates for 45 degrees, the linear bearing is positioned in the middle of the linear optical axis, and the movable spring is positioned between the stretching state and the retracting state and is in the longest stretching state.

The movable spring switch is developed and designed according to standard requirements, and is particularly suitable for various narrow-gauge switches in coal mine underground aiming at rail type 22-38 kg/m control facilities; single switch, symmetrical switch, crossover switch, and symmetrical combination switch.

Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the detailed description is given with reference to the embodiments of the present invention, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and it should be covered by the scope of the claims of the present invention.

Claims

1. A movable spring spanner is characterized in that: the novel swing arm comprises a box body (1), wherein a short shaft sleeve (8) and a long shaft sleeve (12) which are positioned on the same axis are fixedly arranged on two side plates of the box body (1), a long shaft (14) is inserted in the long shaft sleeve (12), the outer end of the long shaft (14) is connected with a handle (17), the inner end of the long shaft (14) is matched with an upper end shaft hole of a swing arm (4) and then connected through a bolt, a short shaft (9) is inserted in the short shaft sleeve (8), the inner end of the short shaft (9) is connected with an upper end shaft hole of a driven arm (13) in an inserting mode, and a nut (24) is screwed at the outer end of the short shaft (9); a swinging shaft (6) is arranged between the swinging arm (4) and the driven arm (13), a joint bearing (5) is arranged on the swinging shaft (6), the rod end of the joint bearing (5) is connected with one end of a connecting rod (10), and a connecting part (11) is arranged after the other end of the connecting rod (10) penetrates out of the box body (1); the box body (1) is internally provided with a smooth shaft (21), the smooth shaft (21) is arranged above the swinging shaft (6) and is vertical to the swinging shaft (6) in space, the smooth shaft (21) is provided with a linear bearing sleeve (7), the linear bearing sleeve (7) is externally provided with a sleeve (18), the sleeve (18) is connected with one end of a movable spring (15) through a tension spring bolt (16), and the other end of the movable spring (15) is connected in a tension spring groove (23) of the swinging shaft (6).

2. The rolling spring spanner according to claim 1, wherein: the inner side plate of the box body (1) is positioned at the long shaft sleeve (12) and is provided with a fulcrum channel steel (20).

3. The rolling spring spanner according to claim 1, wherein: the handle (17) is folding, and a tension spring (25) is arranged at the folding position.

4. The rolling spring spanner according to claim 1, wherein: ear seats (3) are arranged on two sides of the box body (1).

5. The rolling spring spanner according to claim 1, wherein: the box body (1) is provided with a box body cover plate (2).

6. The rolling spring spanner according to claim 1, wherein: both ends of the smooth shaft (21) are respectively arranged on the box body (1) through shaft supports (19).