CN213121139U

CN213121139U - Multifunctional test board of point switch

Info

Publication number: CN213121139U
Application number: CN202020674420.9U
Authority: CN
Inventors: 张颖; 张辉; 王晓琪; 雷峰; 沈代军; 刘小蕊
Original assignee: Xian Railway Signal Co Ltd
Current assignee: Xian Railway Signal Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-05-04
Anticipated expiration: 2030-04-28

Abstract

The utility model belongs to a multi-functional testboard of goat, characterized by: the method comprises the following steps: platform (1) is placed to the goat, goat (2) and test box (3) await measuring, test box (3) comprise test frame (4), weight load experiment unit (5), hydraulic load experiment unit (6) and electrical apparatus control box (7), test frame (4) are frame construction, it highly is higher than the goat and places platform (1), weight load experiment unit (5), hydraulic load experiment unit (6) and electrical apparatus control box (7) are fixed respectively in test frame (4), test frame (4) and goat are placed platform (1) and are fixed side by side. The multifunctional test board of the point switch can solve the problems that the weight slow-release mechanism has long balance recovery time and the whole test operation efficiency is not high; the hydraulic slow release mechanism cannot be independently used as a hydraulic load; the problem of current goat testboard function singleness.

Description

Multifunctional test board of point switch

Technical Field

The utility model belongs to the technical field of the railway traffic signal, concretely relates to multi-functional testboard of goat.

Background

The railway switch machine is a key device for switch conversion, and in order to test whether the switch machine can convert switches according to the railway industry standard, various technical performance indexes of the mechanical structure and the electrical control of the switch machine need to be tested, so that various switch machine test tables for simulating switch loads need to be designed.

When simulating the load of a real turnout, a heavy hammer load and a hydraulic load are commonly used. In the existing point switch test board, a heavy hammer load machine is simple in structure, the load force is reflected visually, the resistance characteristic of a turnout can be simulated accurately, and the heavy hammer load test board is mainly applied to the characteristic test of the point switch; the weight load test table has the disadvantages that the weight load test table has larger external size, and a slow release and adjustment device of a weight group needs to be designed; the weight of the heavy hammer set is large, and when a point switch with large impact force such as a quick point switch is tested, a transmission device of the heavy hammer test bench has certain potential safety hazards.

The hydraulic load has the advantages of simple structure, stable load force output, capability of realizing self lubrication of the hydraulic cylinder, long service life and capability of being mainly applied to the characteristic and service life test of the point switch; according to the requirement, the hydraulic load can be designed and configured with a special hydraulic cylinder according to the characteristics of the quick-acting switch machine to complete the characteristic test of the quick-acting switch machine. The hydraulic load has the defects that the load force output cannot completely simulate the resistance characteristic of the turnout; the pressure grade requirement of valve elements selected by a hydraulic oil circuit system designed for the quick-acting switch machine is high, and the processing cost is increased.

The existing weight set slow release mechanism is mainly a slow release mechanism for dragging a weight slow release mechanism and a bottom oil cylinder by a motor. Before testing, the two forms of release mechanisms keep the two sets of weights balanced in a certain position. When the test is carried out, two groups of heavy hammers connected through the transmission device are not balanced any more, namely, the heavy hammer group at the lower position is used as a load to be driven and lifted by the point switch, the heavy hammer group at the upper position is fixed at the upper position and does not move or slowly fall down through the slow release mechanism, and the heavy hammer group at the upper position completely falls down after the test is finished once, so that the heavy hammer group is balanced again, and the test is prepared for the next test. The mechanism using the motor to slowly release the heavy hammer runs stably, but the time for restoring the balance of the heavy hammer is longer, so that the efficiency of the whole application of the test board is not high. The slow release mechanism using the bottom oil cylinder can complete the basic function of the slow release mechanism, and can realize the control of the slow release speed of the heavy hammer through the control of a hydraulic system, so that the running efficiency of the test is greatly improved, but the slow release mechanism only can realize the slow release function of the heavy hammer and cannot be independently used as a hydraulic load.

Disclosure of Invention

The utility model aims to provide a multifunctional test board of a point switch, which aims to solve the problems that the weight slow-releasing mechanism in the prior art has long recovery time and low overall test operation efficiency; the hydraulic slow release mechanism cannot be independently used as a hydraulic load; the problem of current goat testboard function singleness.

In order to solve the above problems, the utility model adopts the following technical scheme: the multifunctional test board comprises a switch machine placing table for placing a switch machine to be tested, wherein the side surface of the switch machine placing table is connected with a test box, the test box comprises a test frame, and a heavy hammer load experiment unit, a hydraulic load experiment unit and an electrical appliance control box are arranged on the test frame;

the heavy hammer load experiment unit comprises a push plate mechanism and a heavy hammer group which are connected with the point switch to be tested, a hydraulic cylinder is arranged on the push plate mechanism, the push plate mechanism is arranged on the upper layer of the test frame, and the heavy hammer group is arranged on the lower layer of the test frame; the hydraulic load experiment unit comprises a push plate mechanism connected with the point switch to be tested and a hydraulic cylinder on the push plate mechanism, the hydraulic cylinder is connected with a hydraulic valve group and an oil pump motor group, and the hydraulic valve group and the oil pump motor group are arranged on the bottom layer or the side surface of the test frame.

The utility model realizes the test of the heavy hammer load experiment by adopting the hydraulic cylinder as a slow release and adjusting mechanism of the heavy hammer load; simultaneously, the hydraulic cylinder acts on a load to test various points to be tested; the hydraulic cylinder can be used as a main power output element to realize squeezing and stripping tests and the like on the switch machine to be tested; the multifunctional switch machine has the advantages that the multifunctional switch machine really achieves one cylinder for multiple purposes, achieves the test of various loading forces of the switch machine to be tested, meets the test requirements of various switch machines to be tested, and is wide in application range and wide in application prospect.

Preferably, the push plate mechanism comprises a front mounting base plate and a rear mounting base plate which are connected with the upper layer of the test frame, the front end of the front mounting base plate and the rear end of the rear mounting base plate are respectively provided with a front fixing plate and a rear fixing plate, at least four linear limiting rods are symmetrically arranged between the front fixing plate and the rear fixing plate in a left-right mode, a hydraulic push plate and an action push plate are arranged through the linear limiting rods, and the hydraulic push plate and the action push plate are arranged in an up-down mode and are movably connected in a detachable;

a piston rod of the hydraulic cylinder is connected with the front fixing plate and the rear fixing plate, the hydraulic cylinder penetrates through the hydraulic push plate, and the intersection of the hydraulic cylinder and the hydraulic push plate is connected;

the two ends of the front mounting bottom plate and the rear mounting bottom plate are respectively symmetrically provided with a high bearing seat and a low bearing seat, the high bearing seats are arranged at the inner sides of the low bearing seats, the high bearing seats at the left side and the right side are respectively provided with an auxiliary chain, the auxiliary chain and the hydraulic push plate are detachably and movably connected, the low bearing seats at the left side and the right side are respectively provided with a main chain, the main chains and the action push plate are detachably and movably connected, the heavy hammer group comprises a front group and a rear group, the main chain and the auxiliary chain of the front mounting bottom plate are connected with the heavy hammer group of the front group;

an action rod is arranged in the middle of the action push plate and penetrates through the front fixing plate, and a connector connected with a switch machine to be tested is arranged at the end of the action rod.

The push plate mechanism is the key for realizing the test of the switch machine to be tested, and the flexible arrangement of the push plate mechanism realizes the one-cylinder multi-purpose effect of the hydraulic cylinder, improves the test detection efficiency and meets the test requirements of various switch machines to be tested.

Preferably, the hydraulic push plate and the action push plate are vertically provided with corresponding through holes and are detachably and movably connected through a long bolt.

Detachable swing joint can be in a flexible way to the conversion of different experiments, when carrying out the weight load experiment, demolish the connection, make hydraulic pressure push pedal and action push pedal mutually independent, when carrying out the hydraulic pressure load experiment, make hydraulic pressure push pedal and action push pedal be connected.

Preferably, the hydraulic push plate and the auxiliary chain are vertically or horizontally provided with corresponding through holes and are detachably and movably connected through short bolts;

the action push plate and the main chain are vertically or horizontally provided with corresponding through holes and are detachably and movably connected through short bolts.

The detachable movable connection can flexibly convert different experiments, the conversion experiment can be quickly and accurately carried out in the experiment process by using a bolt mode, when a heavy hammer load experiment is carried out, a short bolt is inserted, the auxiliary chain moves along with the hydraulic push plate, and the main chain moves along with the action push plate; when a hydraulic load experiment is carried out, the short bolts are taken out, and the motions of the short bolts are independent.

Preferably, the front and rear sets of weights are respectively provided with a motion track rod.

The movement track is arranged to enable the heavy punch group to ascend or descend according to a certain track, so that the heavy punch group is prevented from shaking, and the experiment is more stable and safer.

Preferably, the joint is connected with a telescopic rod of the switch machine to be tested through a bolt.

The bolt connection mode makes the connection action fast and stable, improves experimental efficiency. The utility model has the advantages that: the utility model adopts the hydraulic cylinder as the slow release and adjustment mechanism of the weight load, thereby realizing the stability test of the weight load experiment; simultaneously, the hydraulic cylinder acts on a load to test various points to be tested; the hydraulic cylinder can be used as a main power output element to realize squeezing and stripping tests and the like on the switch machine to be tested; the multifunctional switch machine has the advantages that the multifunctional switch machine really achieves one cylinder for multiple purposes, achieves the test of various loading forces of the switch machine to be tested, meets the test requirements of various switch machines to be tested, and is wide in application range and wide in application prospect.

The invention will be further explained with reference to the drawings of the embodiments.

Drawings

Fig. 1 is a schematic structural view of a multifunctional test board of a switch machine according to the present invention;

FIG. 2 is a schematic structural view of the push plate mechanism of the present invention;

FIG. 3 is a schematic view of the connection mode of the push plate mechanism during the weight load test;

FIG. 4 is a schematic view of the connection mode of the push plate mechanism during a hydraulic load test;

fig. 5 is a schematic diagram of the hydraulic control principle of the present invention.

In the figure: 1. a switch machine placing table; 2. a switch machine to be tested; 3. a test box; 4. a test frame; 5. a weight load experiment unit; 6. a hydraulic load test unit; 7. an electrical appliance control box; 8. a push plate mechanism; 801. a front mounting base plate; 802. a back mounting bottom plate; 803. a front fixing plate; 804. a rear fixing plate; 805. a linear limiting rod; 806. hydraulic push plate; 807. an action push plate; 808. a high bearing seat; 809. a low bearing seat; 810. a secondary chain; 811. a main chain; 812. an action lever; 813. a joint; 814. a long bolt; 815. a short bolt; 9. a weight group; 901. a motion trajectory lever; 10. a hydraulic cylinder; 11. a hydraulic valve block; 12. an oil pump motor set; 13. an overflow valve; 14. a throttle valve; 15. a one-way valve; 16. a two-position two-way electromagnetic directional valve; 17. a three-position four-way electromagnetic directional valve; 18. a speed regulating valve; 19. an oil filter; 20. and an oil tank.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, and it is to be understood that the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central, lateral, longitudinal, up, down, front, back, left, right, vertical, horizontal, top, bottom, inner, outer" and the like indicate orientations or positional relationships based on those shown in fig. 2, which are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1, the utility model relates to a multi-functional testboard of goat, include: the device comprises a point switch placing table 1, a point switch 2 to be tested and a test box 3, wherein the test box 3 is composed of a test frame 4, a heavy hammer load experiment unit 5, a hydraulic load experiment unit 6 and an electrical appliance control box 7, the test frame 4 is of a frame structure and is higher than the point switch placing table 1, the heavy hammer load experiment unit 5, the hydraulic load experiment unit 6 and the electrical appliance control box 7 are respectively fixed in the test frame 4, the test frame 4 and the point switch placing table 1 are fixed side by side, the point switch 2 to be tested is placed on the point switch placing table 1, the test frame 4 is divided into three layers of frame bodies up and down, and a group of heavy hammers 9 are respectively fixed in the two frame bodies at the lower end in a staggered manner; the hydraulic load experiment unit 6 comprises a push plate mechanism 8 fixed in the uppermost frame of the test frame 4, a hydraulic cylinder 10 connected with the push plate mechanism 8, a hydraulic valve group 11 and an oil pump motor group 12 connected with the hydraulic cylinder 10, wherein the hydraulic valve group 11 and the oil pump motor group 12 are arranged at the bottom layer or the side surface of the test frame 4; the push plate mechanism 8 is connected with two sets of weight groups 9, namely a rear side weight group and a front side weight group, so that the weight load experiment is realized, and the hydraulic cylinder 10 plays a role in slowly releasing and adjusting the two sets of weight groups 9 in the weight experiment.

The hydraulic cylinder 10 is connected with the hydraulic valve group 11 and the oil pump motor group 12, the hydraulic cylinder 10 is used as a main power output element to perform a hydraulic load experiment, so that various load forces of the switch machine 2 to be tested can be tested, and the test requirements of various switch machines 2 to be tested can be met.

As shown in fig. 2, giving a schematic structural view of the push plate mechanism 8, the push plate mechanism 8 includes: a front mounting base plate 801, a rear mounting base plate 802, a front fixing plate 803, a rear fixing plate 804, a linear limiting rod 805, a hydraulic push plate 806, an action push plate 807, a high bearing seat 808, a low bearing seat 809, a secondary chain 810, a main chain 811, an action rod 812, a joint 813, a long bolt 814 and a short bolt 815; the upper-layer frame of the test frame 4 is connected with a front mounting base plate 801 and a rear mounting base plate 802, the front end of the front mounting base plate 801 and the rear end of the rear mounting base plate 802 are respectively provided with a front fixing plate 803 and a rear fixing plate 804, and the front fixing plate 803 and the front mounting base plate 801 can be integrally formed or combined to form an L shape; the rear fixing plate 804 and the rear mounting base plate 802 may be integrally formed or combined into an L-shape, and at least four linear position-limiting rods 805 are symmetrically arranged between the front fixing plate 803 and the rear fixing plate 804 in a left-right manner, and may be connected by welding or screwing. The linear limiting rod 805 is horizontally arranged in multiple layers or upper and lower layers.

A hydraulic push plate 806 and an action push plate 807 are arranged through the linear limiting rod 805, the hydraulic push plate 806 and the action push plate 807 are perpendicular to the linear limiting rod 805, the hydraulic push plate 806 and the action push plate 807 are arranged up and down, and the hydraulic push plate 806 and the action push plate 807 are detachably and movably connected, and the connection mode can be that corresponding through holes are vertically arranged on the hydraulic push plate 806 and the action push plate 807 and are detachably and movably connected through a long bolt 814; the hydraulic push plate 806 and the action push plate 807 may be detachably and movably connected by movable fasteners disposed on their side surfaces, or may be connected by screws. The purpose of the detachable movable connection is to flexibly convert a heavy hammer load experiment and a hydraulic load experiment, and when the heavy hammer load experiment is carried out, the hydraulic push plate 806 and the action push plate 807 are split; when performing a hydraulic load test, the hydraulic push plate 806 and the action push plate 807 are all integrated.

The piston rod of the hydraulic cylinder 10 is connected with the front fixing plate 803 and the rear fixing plate 804, the hydraulic cylinder 10 penetrates through the hydraulic push plate 806, the intersection of the hydraulic cylinder 10 and the hydraulic push plate 806 is connected, and the hydraulic cylinder 10 and the front fixing plate 803, the rear fixing plate 804 and the hydraulic push plate 806 are vertically arranged.

The two ends of the front mounting base plate 801 and the rear mounting base plate 802 are symmetrically provided with a high bearing seat 808 and a low bearing seat 809 respectively, the high bearing seat 808 is arranged at the inner side of the low bearing seat 809, the high bearing seat 808 at the left side and the right side is provided with an auxiliary chain 810 respectively, the auxiliary chain 810 and the hydraulic push plate 806 are detachably and movably connected, the connection mode can be that corresponding through holes are vertically or horizontally arranged on the hydraulic push plate 806 and the auxiliary chain 810, the detachable movable connection is carried out through a short bolt 815, and a locking mode or a screw connection mode can also be arranged through the side surface, so that the purpose of the detachable movable. The detachable movable connection is used for flexibly converting a heavy hammer load experiment and a hydraulic load experiment, when the heavy hammer load experiment is carried out, a short bolt 815 is inserted, and the auxiliary chain moves along with the hydraulic push plate; when a hydraulic load experiment is carried out, the short bolt 815 is taken out, and the secondary chain 810 and the hydraulic push plate 806 are not affected mutually. The long bolt 814 is inserted into the vertical through holes of the hydraulic push plate 806 and the action push plate 807 at one time, so that the hydraulic push plate 806 and the action push plate 807 are in an integral motion form.

The left and right low bearing seats 809 are respectively provided with a main chain 811, the main chain 811 is detachably and movably connected with the action push plate 807, the connection mode can be that corresponding through holes are vertically or horizontally arranged on the action push plate 807 and the main chain 811, the short bolt 815 is used for detachable and movable connection, and a lock catch mode or a screw connection mode is arranged on the side face of the action push plate 807 and the main chain 811, so that the purpose of detachable and movable connection is achieved. The detachable movable connection is used for flexibly converting a heavy hammer load experiment and a hydraulic load experiment, when the heavy hammer load experiment is carried out, the short bolt 815 is inserted into the two corresponding through holes, and the main chain 811 moves along with the action push plate 807; when a hydraulic load experiment is carried out, the short bolt 815 is taken out, and the main chain 811 and the action push plate 807 are not affected mutually.

The weight set 9 comprises a front weight set and a rear weight set, a main chain 811 and an auxiliary chain 810 of the front mounting bottom plate 801 are connected with the front weight set 9, and a main chain 811 and an auxiliary chain 810 of the rear mounting bottom plate 802 are connected with the rear weight set 9; the front and rear weight sets 9 may be placed on the same layer or different layers of the testing frame 4, and if they are placed on different layers, the positioning positions of the chain, the high bearing block 808 and the low bearing block 809 need to be adjusted accordingly.

In order to move the weight set 9 along the vertical trajectory during the ascent and descent, and to prevent the weight set 9 from wobbling during the operation, the front and rear weight sets 9 are respectively inserted through the motion trajectory bar 901.

An action rod 812 is arranged in the middle of the action push plate 807, the action rod 812 penetrates through the front fixing plate 803, the action rod 812 is vertically connected with the action push plate 807 and can be connected by welding or through a flange, and the end of the action rod 812 is provided with a joint 813 connected with the switch machine 2 to be tested. The joint 813 can be connected with the telescopic rod of the switch machine 2 to be tested through a bolt, the bolt connection mode is quick in fixing and disassembling, and other detachable movable connections can be adopted.

Example 1 when performing a heavy hammer load test, a schematic connection manner of the push plate mechanism 8 during the heavy hammer load test is shown in fig. 3, where the hydraulic push plate 806 and the secondary chain 810 are designed with insertion holes at corresponding positions and connected together through a short plug 815 (or other detachable movable connection manner), and the action push plate 807 and the main chain 811 are designed with insertion holes at corresponding positions and connected together through a short plug 815 (or other detachable movable connection manner); the short bolt 815 is connected with the telescopic rod of the switch machine 2 to be tested, each chain keeps balance with the front and rear weight sets 9, and each chain is in a straightening state.

When the telescopic rod of the point switch 2 to be tested retracts, the action rod 812 drives the action push plate 807 to move forward and drives the main chain 811 to move forward; the rear weight set 9 is lifted along the motion track rod 901 under the pulling of the main chain 811, and the secondary chain 810 of the rear weight set 9 is in a free bending state, and the position of the front weight set 9 is unchanged; under the action of the hydraulic valve group 11, the movement speed of the hydraulic cylinder 10 is controlled, and the front heavy hammer group 9 is slowly released.

When the telescopic rod of the point switch 2 to be tested extends out, the action rod 812 drives the action push plate 807 to move backwards, so as to drive the main chain 811 to move backwards, the front side weight hammer set 9 is pulled by the main chain 810 to rise along the motion track rod 901, the auxiliary chain 810 of the front side weight hammer set 9 is in a free bending state, and the position of the rear side weight hammer set 9 is unchanged; under the action of the hydraulic valve group 11, the movement speed of the hydraulic cylinder 10 is controlled, and the slow release of the rear heavy hammer group 9 is realized.

When the telescopic rod of the switch machine 2 to be tested extends or retracts or finishes the action, the weight of the heavy hammer set 9 or the control of the hydraulic valve set 11 enables the chain to move to the side where the heavy hammers are slowly released, so that the heavy hammer sets 9 on the two sides can quickly restore the balance state, and the balance state is prepared for the next heavy hammer test.

In this connection mode, the manual operation for weight adjustment of the weight set 9 and the operation for extending or retracting the operation rod 812 can be completed.

Example 2

As shown in fig. 4, unlike embodiment 1: embodiment 2 in the hydraulic load test, the push plate mechanism 8 includes: a front mounting base plate 801, a rear mounting base plate 802, a front fixing plate 803, a rear fixing plate 804, a linear limiting rod 805, a hydraulic push plate 806, an action push plate 807, a high bearing seat 808, a low bearing seat 809, an auxiliary chain 810, a main chain 811, an action rod 812, a joint 813 and a long bolt 814; the secondary chain 810 is separated from the hydraulic push plate 806, and the primary chain 811 is separated from the action push plate 807, i.e., disengaged from the weight set 9. The long bolt 814 is inserted into the vertical through holes of the hydraulic push plate 806 and the action push plate 807 at one time, so that the hydraulic push plate 806 and the action push plate 807 are in an integral motion form. Which move together along the linear restraint rod 805 as they move. The required hydraulic load force can be output by adjusting the overflow valve of the hydraulic valve group 11.

This multi-functional testboard can export two kinds of loading forces of weight load and hydraulic load, and its hydraulic control system principle is shown as figure 5, and this hydraulic control system principle is only a control mode, can also have multiple control mode, takes this control mode as an example, can realize 5 kinds of mode at least:

passive hydraulic loading force mode: the oil pump motor set 12 does not work, the three-position four-way electromagnetic directional valve 17 is located at the middle position and is stopped, the two-position two-way electromagnetic directional valve 16 is electrified, and oil in the hydraulic cylinder 10 only returns to the oil tank 20 through the overflow valve 13. Adjusting the size of the relief valve 13 at this time can adjust the output load force of the hydraulic cylinder 10.

Active hydraulic load force mode: the oil pump motor set 12 works, the three-position four-way electromagnetic directional valve 17 is matched with the action direction of the switch machine 2 to be tested to be connected with the electromagnet 1DT or 2DT according to requirements, the two-position two-way electromagnetic directional valve 16 is electrified, and oil in the hydraulic cylinder 10 only returns to the oil tank 20 through the overflow valve 13. Adjusting the size of the relief valve 13 at this time can adjust the output load force of the hydraulic cylinder 10.

Passive weight loading force mode: the oil pump motor set 12 does not work, all the electromagnetic valves are not electrified, the pressure of the overflow valve 13 is adjusted to be higher than the system pressure, and the throttle valve 14 controls the movement speed of the hydraulic cylinder 10 to realize slow release of the heavy hammer set 9;

or the oil pump motor set 12 does not work, the two-position two-way electromagnetic directional valve 16 is electrified, and the other electromagnetic valves are not electrified, so that the oil cylinder does not move. After the point switch 2 to be tested is started, the two-way electromagnetic directional valve 16 is powered off in a delayed mode, the throttle valve 14 controls the movement speed of the hydraulic cylinder 10, and the slow release of the heavy hammer group 9 is achieved;

or the oil pump motor set 12 does not work, the two-position two-way electromagnetic directional valve 16 is electrified, and the oil cylinder does not move. After the switch machine 2 to be tested is started, the three-position four-way electromagnetic directional valve 17 is switched on the electromagnet 1DT or 2DT in a delayed mode according to the action direction of the switch machine 2 to be tested, and oil in the hydraulic cylinder 10 returns to the oil tank 20 through the three-position four-way electromagnetic directional valve 17, so that the slow release of the heavy hammer set 9 is realized. The speed regulating valve 18 at the upper end of the oil filter 19 can regulate the slow release speed of the weight set 9.

Active weight load force mode: the oil pump motor set 12 works, the three-position four-way electromagnetic directional valve 17 is matched with the action direction of the switch machine 2 to be tested according to requirements, the electromagnet 1DT or 2DT is switched on in the action process of the switch machine 2 to be tested, the pressure of the overflow valve 13 is adjusted to be higher than the system pressure, the two-position two-way electromagnetic directional valve 16 is not electrified, the throttle valve 14 controls the movement speed of the hydraulic cylinder 10, and the slow release of the heavy hammer set 9 is realized;

or the oil pump motor set 12 works, the three-position four-way electromagnetic directional valve 17 is matched with the action direction of the switch machine 2 to be tested to be connected with the electromagnet 1DT or 2DT according to the requirement, the pressure of the overflow valve 13 is adjusted to be higher than the system pressure, the two-position two-way electromagnetic directional valve 16 is powered on, the hydraulic cylinder 10 is enabled to lift the heavy hammer set 9 on the opposite side of the action direction of the switch machine 2 to be tested for a short time, after the switch machine 2 to be tested is started, the two-position two-way electromagnetic directional valve 16 is powered off, the throttle valve 14 controls the movement speed of the hydraulic cylinder 10, and the slow;

or the oil pump motor set 12 works, the three-position four-way electromagnetic directional valve 17 is matched with the action direction of the switch machine 2 to be tested to be communicated with the electromagnet 1DT or 2DT according to the requirement, the pressure of the overflow valve 13 is adjusted to be higher than the system pressure, the two-position two-way electromagnetic directional valve 16 is electrified, so that the hydraulic cylinder 10 can lift the heavy hammer set 9 on the opposite side of the action direction of the switch machine 2 to be tested for a short time, after the switch machine 2 to be tested is started, the operation is carried out according to a passive heavy hammer load force mode, and the slow release of the heavy.

Weight load force adjustment mode: when the weight of the heavy punch set 9 is adjusted by manually operating the electric appliance control box 7 on the test box 3, the oil pump motor set 12 works, the three-position four-way electromagnetic directional valve 17 is matched with the action direction of the hydraulic cylinder 10 according to needs to be switched on by the electromagnet 1DT or 2DT, the two-position two-way electromagnetic directional valve 16 is switched on, the linear motion of the hydraulic cylinder 10 is converted into the lifting motion of the heavy punch set 9 through the transmission of the auxiliary chain 810, when a set of heavy punches completely falls to the ground, the main chain 811 and the auxiliary chain set on the same side are completely loosened, and the weight of the heavy punch set can be replaced by adjusting the positions of the inserting and pulling.

In this control mode, the lifting movement of the weight set 9 can be converted into the extending or retracting movement of the actuating rod 812 on the actuating push plate 807 through the transmission of the main chain 811. Motion control of the action lever 812 is achieved.

Claims

1. A multifunctional test board of a point switch is characterized in that: the method comprises the following steps: the device comprises a point switch placing table (1), a point switch (2) to be tested and a test box (3), wherein the test box (3) is composed of a test frame (4), a heavy hammer load experiment unit (5), a hydraulic load experiment unit (6) and an electrical appliance control box (7), the test frame (4) is of a frame structure and is higher than the point switch placing table (1), the heavy hammer load experiment unit (5), the hydraulic load experiment unit (6) and the electrical appliance control box (7) are respectively fixed in the test frame (4), the test frame (4) and the point switch placing table (1) are fixed side by side, the point switch (2) to be tested is placed on the point switch placing table (1), the test frame (4) is vertically divided into three layers of frame bodies, and a group of heavy hammers (9) are respectively fixed in the two frame bodies at the lower end in a staggered mode; the hydraulic load experiment unit (6) comprises a push plate mechanism (8) fixed in the uppermost layer frame of the test frame (4), a hydraulic cylinder (10) connected with the push plate mechanism (8), a hydraulic valve group (11) connected with the hydraulic cylinder (10) and an oil pump motor group (12); the hydraulic valve group (11) and the oil pump motor group (12) are arranged at the bottom layer or the side surface of the test frame (4); two sets of weight groups (9) are connected to push pedal mechanism (8), are rear side weight group (9) and front side weight group (9) respectively, realize the experiment of weight load, and pneumatic cylinder (10) play the effect of slowly putting and adjusting two sets of weight groups (9) in the weight experiment.

2. The multifunctional test bench of a switch machine as claimed in claim 1, characterized in that: the push plate mechanism (8) includes: the device comprises a front mounting base plate (801), a rear mounting base plate (802), a front fixing plate (803), a rear fixing plate (804), a linear limiting rod (805), a hydraulic push plate (806), an action push plate (807), a high bearing seat (808), a low bearing seat (809), an auxiliary chain (810), a main chain (811), an action rod (812), a joint (813), a long bolt (814) and a short bolt (815); the testing device comprises a front mounting base plate (801) and a rear mounting base plate (802) which are connected with an upper layer frame of a testing frame (4), wherein a front fixing plate (803) and a rear fixing plate (804) are respectively arranged at the front end of the front mounting base plate (801) and the rear end of the rear mounting base plate (802), and the front fixing plate (803) and the front mounting base plate (801) can be integrally formed or combined to form an L shape; the rear fixing plate (804) and the rear mounting base plate (802) can be integrally formed or combined to form an L shape, and at least four straight line limiting rods (805) are symmetrically arranged between the front fixing plate (803) and the rear fixing plate (804) left and right and can be connected through welding or screwing; the linear limiting rod (805) is horizontally arranged in multiple layers or an upper layer and a lower layer.

3. The multifunctional test bench of a switch machine as claimed in claim 2, wherein: a hydraulic push plate (806) and an action push plate (807) are arranged through the linear limiting rod (805), the hydraulic push plate (806) and the action push plate (807) are perpendicular to the linear limiting rod (805), the hydraulic push plate (806) and the action push plate (807) are arranged up and down, the hydraulic push plate (806) and the action push plate (807) are movably connected in a detachable mode, corresponding through holes are vertically formed in the hydraulic push plate (806) and the action push plate (807), and the hydraulic push plate (806) and the action push plate (807) are movably connected in a detachable mode through a long bolt (814); or movable buckles are arranged on the side surfaces of the hydraulic push plate (806) and the action push plate (807), detachable and movable connection is carried out in a movable buckling mode and used for converting a heavy hammer load experiment and a hydraulic load experiment, and when the heavy hammer load experiment is carried out, the hydraulic push plate (806) and the action push plate (807) are split; when a hydraulic load test is performed, the hydraulic push plate (806) and the action push plate (807) are integrated.

4. The multifunctional test bench of a switch machine as claimed in claim 1, characterized in that: a piston rod of the hydraulic cylinder (10) is connected with the front fixing plate (803) and the rear fixing plate (804), the hydraulic cylinder (10) penetrates through the hydraulic push plate (806), the intersection of the hydraulic cylinder (10) and the hydraulic push plate (806) is connected, and the hydraulic cylinder (10) is vertically arranged with the front fixing plate (803), the rear fixing plate (804) and the hydraulic push plate (806).

5. The multifunctional test bench of a switch machine as claimed in claim 2, wherein: the two ends of the front mounting base plate (801) and the rear mounting base plate (802) are respectively symmetrically provided with a high bearing seat (808) and a low bearing seat (809), the high bearing seats (808) are arranged at the inner sides of the low bearing seats (809), the high bearing seats (808) on the left side and the right side are respectively provided with an auxiliary chain (810), the auxiliary chain (810) is detachably and movably connected with the hydraulic push plate (806), corresponding through holes are vertically or horizontally arranged on the hydraulic push plate (806) and the auxiliary chain (810), and the hydraulic push plate and the auxiliary chain (810) are detachably and movably connected through a short bolt (815); or a locking mode or a screw connection mode is arranged on the side surface, when a heavy hammer load experiment is carried out, a short bolt (815) is inserted, and the auxiliary chain moves along with the hydraulic push plate; when a hydraulic load experiment is carried out, the short bolt (815) is taken out, the long bolt (814) is inserted into the vertical through holes of the hydraulic push plate (806) and the action push plate (807) at one time, and the hydraulic push plate (806) and the action push plate (807) are in an integral motion mode.

6. The multifunctional test bench of a switch machine as claimed in claim 2, wherein: the low bearing seat (809) comprises a left side and a right side which are arranged at the same side, a main chain (811) is respectively arranged, and the main chain (811) is detachably and movably connected with the action push plate (807).

7. The multifunctional test bench of a switch machine as claimed in claim 1, characterized in that: the weight group (9) comprises a front weight group and a rear weight group, a main chain (811) and an auxiliary chain (810) of the front mounting bottom plate (801) are connected with the front weight group (9), and a main chain (811) and an auxiliary chain (810) of the rear mounting bottom plate (802) are connected with the rear weight group (9); the front and rear weight sets (9) can be placed on the same layer or different layers of the test frame (4), and the front and rear weight sets (9) respectively penetrate through the motion track rod (901), so that the weight sets (9) can move along a vertical track when ascending and descending.

8. The multifunctional test bench of a switch machine as claimed in claim 2, wherein: an action rod (812) is arranged in the middle of the action push plate (807), the action rod (812) penetrates through the front fixing plate (803), the action rod (812) is vertically connected with the action push plate (807), a connector (813) connected with a switch machine (2) to be tested is arranged at the end of the action rod (812), and the connector (813) is connected with a telescopic rod of the switch machine (2) to be tested through a bolt.