Pantograph spring supporting device of electric locomotive

Abstract

The utility model discloses an electric locomotive pantograph spring supporting device, which relates to the field of pantographs and comprises a pantograph bottom frame, an adjusting part is arranged on one side of the pantograph bottom frame, a first connecting rod matched with the pantograph bottom frame is arranged on one side of the adjusting part, and a spring supporting assembly is arranged at the other end of the first connecting rod. A pantograph top frame is arranged at the top end of the spring supporting assembly, a pantograph is arranged at the top end of the pantograph top frame, and a supporting column matched with the pantograph bottom frame is arranged on one side of the middle of the pantograph top frame. Buffer assemblies are symmetrically arranged at the bottom end of the pantograph bottom frame, and insulators are symmetrically arranged at the bottom ends of the buffer assemblies. A damping assembly matched with the pantograph is arranged on one side of the top end of the pantograph bottom frame. The pantograph support for the electric locomotive has the effect of supporting the pantograph of the electric locomotive, and the influence of vibration on the pantograph of the electric locomotive is reduced.

Description

Technical Field

[0001] The utility model relates to the field of pantographs, in particular to a spring supporting device for a pantograph of an electric locomotive. Background Art

[0002] The pantograph of an electric locomotive is an important device installed on the roof of the electric locomotive. Its main function is to transmit electrical energy to the train through physical contact with the overhead contact network, providing the train with the power required for operation.

[0003] A pantograph typically consists of a collector head, a pantograph frame, springs, and a pneumatic or electric drive mechanism. It automatically adjusts to the train's speed and the height of the catenary to maintain stable contact with the catenary. The pantograph operates by raising the pantograph through a drive mechanism, bringing it into contact with the catenary. Electrical energy is then transmitted through the electrical contact between the collector head and the catenary.

[0004] However, at present, when electric locomotives are running on roads with poor road conditions, it is inevitable that the pantograph will be vibrated. During the vibration process, the stability of the contact between the pantograph and the contact network will be affected, reducing the durability and reliability of the pantograph, and will also have a certain impact on the transmission of electricity; and when there are low temperatures, ice and snow, freezing rain and other weather conditions, the pantograph will be affected by ice and snow under the standard pantograph raising pressure, and its own weight will increase, and the flexibility of the pantograph's axis joints will be weakened. There may be multiple cases where the pantograph cannot be raised over a large area, disrupting the normal transportation order.

[0005] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0006] In view of the problems in the related art, the present invention proposes a spring support device for a pantograph of an electric locomotive to overcome the above technical problems existing in the existing related art.

[0007] To this end, the specific technical solutions adopted in this utility model are as follows:

[0008] A pantograph spring support device for an electric locomotive comprises a pantograph bottom frame, an adjusting member is provided on one side of the pantograph bottom frame, a connecting rod one cooperating with the pantograph bottom frame is provided on one side of the adjusting member, a spring support assembly is provided on the other end of the connecting rod one, a pantograph top frame is provided on the top end of the spring support assembly, a pantograph is provided on the top end of the pantograph top frame, a support column cooperating with the pantograph bottom frame is provided on one side of the middle of the pantograph top frame; buffer assemblies are symmetrically provided on the bottom end of the pantograph bottom frame, and insulators are symmetrically provided on the bottom ends of the buffer assemblies; a shock absorbing assembly cooperating with the pantograph is provided on one side of the top end of the pantograph bottom frame.

[0009] Furthermore, in order to adjust the inclination angle of connecting rod 1, the adjusting part includes a support plate arranged on one side of the bottom frame of the pantograph, a fixing frame is provided at the top of the support plate, a threaded rod matching connecting rod 1 is inserted in the top of the fixing frame, and a handwheel is provided on the other side of the threaded rod.

[0010] Furthermore, in order to reduce the impact of vibration on the top frame of the pantograph, the spring support assembly includes a connecting tube arranged at the top of the connecting rod 1, a support member is provided at the top of the connecting tube, and a connecting rod 2 that cooperates with the top frame of the pantograph is provided at the top of the support member; the support member includes a protective shell 1 arranged at the top of the connecting rod 1, a spring 1 is provided at the top of the protective shell 1, and a protective shell 2 that cooperates with the spring 1 is provided on the outer side of the protective shell 1.

[0011] Furthermore, in order to reduce the impact of vibration on the bottom frame of the pantograph, the buffer assembly includes a sleeve connecting rod symmetrically arranged at the bottom end of the bottom frame of the pantograph, a linkage plate is arranged at the bottom end of the two groups of sleeve connecting rods, a fixed plate is symmetrically arranged at the top of the linkage plate, a sliding rod is arranged between the two groups of fixed plates, and a slider is symmetrically sleeved on the outer side of the sliding rod, and a connecting rod three that cooperates with the bottom end of the bottom frame of the pantograph is arranged on the side where the two groups of sliders are away from each other, and a spring two is arranged on the side where the two groups of sliders are close to each other.

[0012] Furthermore, in order to better enable the pantograph to raise and lower the pantograph, the shock-absorbing assembly includes a support rod arranged at the top of the bottom frame of the pantograph, and a mounting seat is symmetrically provided at the top of the support rod. The top of the mounting seat is provided with a spring three that matches the pantograph, and the inner side of the spring three is provided with a spring base that matches the mounting seat, and the top of the spring three is provided with a connecting seat; the outer side of the mounting seat is provided with a lower protective cover that matches the spring three, and the outer side of the lower protective cover is provided with an upper protective cover that matches the connecting seat; the top of the upper protective cover is arc-shaped.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model can support the pantograph of an electric locomotive under the cooperation of the pantograph bottom frame, spring support assembly, pantograph top frame and buffer assembly, and reduce the impact of vibration on the pantograph of the electric locomotive when the electric locomotive is running on a road with poor road conditions.

[0015] 2. With the cooperation of the spring support assembly and the buffer assembly, the utility model can ensure the stability of the bottom frame and the top frame of the pantograph as much as possible under the action of the spring reset force when the electric locomotive is in motion, thereby improving the durability and reliability of the pantograph.

[0016] 3. Under the action of the shock-absorbing component, the utility model can better enable the pantograph to perform smooth raising and lowering operations without changing the original structure of the pantograph when the pantograph working environment is in severe weather such as low temperature, ice and snow, freezing rain, etc., and prevent the pantograph head and shock-absorbing component from freezing after the pantograph is lowered. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a structural schematic diagram of a pantograph spring support device for an electric locomotive according to an embodiment of the utility model;

[0019] Figure 2 yes Figure 1 A partial enlarged view of the middle part;

[0020] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle;

[0021] Figure 4 is a cross-sectional view of a pantograph spring support device for an electric locomotive according to an embodiment of the utility model;

[0022] Figure 5 yes Figure 4 A partial enlarged view of point C in the middle;

[0023] Figure 6 This is a schematic structural diagram of a pantograph bottom frame in a pantograph spring support device for an electric locomotive according to an embodiment of the present utility model;

[0024] Figure 7 This is a three-dimensional assembly diagram of a shock-absorbing component in a pantograph spring support device for an electric locomotive according to an embodiment of the utility model;

[0025] Figure 8 is a cross-sectional view of a shock absorbing assembly of a single bolt in a spring support device for a pantograph of an electric locomotive according to an embodiment of the present utility model;

[0026] Figure 9 It is a cross-sectional view of a shock-absorbing assembly of four bolts in a pantograph spring support device for an electric locomotive according to an embodiment of the utility model.

[0027] In the picture:

[0028] 1. Pantograph bottom frame; 2. Adjustment member; 201. Support plate; 202. Fixing bracket; 203. Threaded rod; 204. Handwheel; 3. Connecting rod 1; 4. Spring support assembly; 401. Connecting tube; 402. Support member; 4021. Protective shell 1; 4022. Spring 1; 4023. Protective shell 2; 403. Connecting rod 2; 5. Pantograph top frame; 6. Pantograph; 7. Support column; 8. Buffer assembly; 801, sleeve connecting rod; 802, linkage plate; 803, fixed plate; 804, sliding rod; 805, slider; 806, connecting rod three; 807, spring two; 9, insulator; 10, shock absorption assembly; 1001, support rod; 1002, mounting seat; 1003, spring three; 1004, spring base; 1005, connecting seat; 1006, lower protective cover; 1007, upper protective cover. DETAILED DESCRIPTION

[0029] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0030] According to an embodiment of the present utility model, a spring support device for a pantograph of an electric locomotive is provided.

[0031] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figures 1-9 As shown, the electric locomotive pantograph spring support device according to the embodiment of the utility model includes a pantograph bottom frame 1, an adjusting member 2 is provided on one side of the pantograph bottom frame 1, a connecting rod 3 cooperating with the pantograph bottom frame 1 is provided on one side of the adjusting member 2 (a torsion spring is provided at the position where the connecting rod 3 is connected to the pantograph bottom frame 1), a spring support assembly 4 is provided at the other end of the connecting rod 3, a pantograph top frame 5 is provided at the top end of the spring support assembly 4, a pantograph 6 is provided at the top end of the pantograph top frame 5, a support column 7 cooperating with the pantograph bottom frame 1 is provided on one side of the middle of the pantograph top frame 5 (torsion springs are provided at the positions where the support column 7 is connected to the pantograph top frame 5 and the pantograph bottom frame 1); a buffer assembly 8 is symmetrically provided at the bottom end of the pantograph bottom frame 1, and an insulator 9 is symmetrically provided at the bottom end of the buffer assembly 8; a shock absorbing assembly 10 cooperating with the pantograph 6 is provided on one side of the top end of the pantograph bottom frame 1.

[0032] With the help of the above technical scheme, the utility model can support the pantograph of the electric locomotive under the cooperation of the pantograph bottom frame 1, the spring support assembly 4, the pantograph top frame 5 and the buffer assembly 8, thereby reducing the impact of vibration on the pantograph of the electric locomotive when the electric locomotive is traveling on a road with poor road conditions; under the cooperation of the spring support assembly 4 and the buffer assembly 8, the vibration generated during the driving of the electric locomotive is ensured as much as possible under the action of the spring reset force, thereby improving the durability and reliability of the pantograph; under the action of the shock-absorbing assembly 10, when the pantograph 6 working environment is in severe weather such as low temperature, ice and snow, freezing rain, etc., the pantograph 6 can be better raised and lowered smoothly without changing the original structure of the pantograph 6, and the bow head and the shock-absorbing assembly 10 can be prevented from freezing after the pantograph 6 is lowered.

[0033] In one embodiment, for the above-mentioned adjusting member 2, the adjusting member 2 includes a support plate 201 arranged on one side of the bottom frame 1 of the pantograph, a fixing frame 202 is provided at the top of the support plate 201, a threaded rod 203 cooperating with the connecting rod 3 is inserted into the top of the fixing frame 202 (the threaded rod 203 and the connecting rod 3 are movably connected through a sliding ring), and a hand wheel 204 is provided on the other side of the threaded rod 203; thereby, the inclination angle of the connecting rod 3 can be adjusted.

[0034] The working principle of the adjustment member 2 is as follows:

[0035] By rotating the hand wheel 204, the threaded rod 203 is driven to move horizontally in cooperation with the fixing frame 202, so that the inclination angle of the connecting rod 3 can be adjusted through the collar on the outside of the connecting rod 3.

[0036] In one embodiment, for the above-mentioned spring support assembly 4, the spring support assembly 4 includes a connecting tube 401 arranged at the top of the connecting rod 3, a support member 402 is provided at the top of the connecting tube 401, and a connecting rod 2 403 that cooperates with the pantograph top frame 5 is provided at the top of the support member 402; the support member 402 includes a protective shell 1 4021 arranged at the top of the connecting rod 3, a spring 1 4022 is provided at the top of the protective shell 1 4021, and a protective shell 2 4023 that cooperates with the spring 1 4022 is provided on the outer side of the protective shell 1 4021; the top of the protective shell 2 4023 is arc-shaped; thereby reducing the impact of vibration on the pantograph top frame 5.

[0037] The working principle of the spring support assembly 4 is as follows:

[0038] When the electric locomotive vibrates during driving, the pantograph top frame 5 squeezes or stretches the connecting rod 2 403. Under the movement of the connecting rod 2 403, the protective shell 2 4023 in the support 402 is driven to squeeze or stretch the spring 1 4022 along the protective shell 1 4021. Then, under the resetting action of the spring 1 4022, the stability of the pantograph top frame 5 is ensured.

[0039] In one embodiment, for the above-mentioned buffer assembly 8, the buffer assembly 8 includes a sleeve connecting rod 801 symmetrically arranged at the bottom end of the pantograph bottom frame 1, and the bottom ends of the two groups of sleeve connecting rods 801 are provided with a linkage plate 802, and the top of the linkage plate 802 is symmetrically provided with a fixed plate 803, and a sliding rod 804 is provided between the two groups of fixed plates 803. The outer side of the sliding rod 804 is symmetrically sleeved with a slider 805, and the two groups of sliders 805 are provided with a connecting rod three 806 that cooperates with the bottom end of the pantograph bottom frame 1 on the side away from each other, and a spring two 807 is provided on the side close to each other; thereby reducing the impact of vibration on the pantograph bottom frame 1.

[0040] The working principle of the buffer component 8 is as follows:

[0041] When the electric locomotive vibrates during driving, the pantograph bottom frame 1 squeezes or stretches the sleeve connecting rod 801, and under the movement of the sleeve connecting rod 801, the linkage plate 802 is driven to move in the vertical direction. Under the movement of the linkage plate 802, the connecting rod three 806 is driven to rotate. Under the rotation of the connecting rod three 806, the two groups of sliders 805 are driven to move closer to or away from each other in the horizontal direction along the slide bar 804, and at the same time, the spring two 807 is squeezed or stretched. Then, under the action of the spring two 807 and the spring outside the thin rod in the sleeve connecting rod 801, the stability of the pantograph bottom frame 1 is guaranteed.

[0042] In one embodiment, for the above-mentioned shock-absorbing assembly 10, the shock-absorbing assembly 10 includes a support rod 1001 arranged at the top of the bottom frame 1 of the pantograph, and a mounting seat 1002 is symmetrically arranged at the top of the support rod 1001. The top of the mounting seat 1002 is provided with a spring three 1003 that cooperates with the pantograph 6, and the inner side of the spring three 1003 is provided with a spring base 1004 that cooperates with the mounting seat 1002, and the top of the spring three 1003 is provided with a connecting seat 1005; the outer side of the mounting seat 1002 is provided with a lower protective cover 1006 that cooperates with the spring three 1003, and the outer side of the lower protective cover 1006 is provided with an upper protective cover 1007 that cooperates with the connecting seat 1005; the top of the upper protective cover 1007 is arc-shaped; so that the pantograph 6 can better lift and lower the bow.

[0043] It should be explained that the shock absorbing assembly 10 has two connection modes: four bolts and one bolt, that is, different numbers of bolts are provided under the mounting seat 1002 and connected to the bottom frame 1 of the pantograph for easy installation.

[0044] The working principle of the shock absorbing assembly 10 is as follows:

[0045] When assembling the shock-absorbing assembly 10, first, the supporting rubber pier at the support rod 1001 in the traditional pantograph is removed, and the mounting seat 1002 on the left side of the support rod 1001 is fixed by four sets of M6 cutting wires and anti-delay nuts, and the mounting seat 1002 on the right side of the support rod 1001 is fixed by one set of M10 cutting wires and anti-delay nuts, and then the spring three 1003 is fixed by the outer threads of the spring base 1004 respectively, and then the lower protective cover 1006 is fixed by the outer threads of the mounting seat 1002, and the upper protective cover 1007 is fixed by the outer threads of the connecting seat 1005;

[0046] In the working environment of the pantograph 6 under adverse weather conditions such as low temperature, ice and snow, freezing rain, etc., when the pantograph 6 is lowered, the bottom end of the pantograph 6 contacts the upper protective cover 1007, compressing the spring 3 1003. Since the top of the protective cover 1007 adopts an arc-shaped structure, the pantograph head and the supporting device can be prevented from freezing after the pantograph 6 is lowered.

[0047] When the pantograph 6 receives the command to raise the pantograph, the spring three 1003 will slowly release and extend according to the raising action of the pantograph 6 and with the cooperation of the lower protective cover 1006 and the upper protective cover 1007, to assist the pantograph 6 in moving upward and enable the pantograph 6 to rise smoothly.

[0048] It needs to be explained that the initial pressure reduction of spring three 1003 on the pantograph top frame 5 is 0.01MPa-0.013MPa, and the design height of spring three 1003 is 128mm-132mm; the force height of spring three 1003 (the height of the elastic support device after the pantograph falls to the lowered position) is <115mm, that is, the spring expansion and contraction amount is >15mm; the top of the upper protective cover 1007 should adopt an arc structure to ensure good contact; the lower protective cover 1006 and the upper protective cover 1007 are required to use nylon material with good insulation performance, anti-aging, and high and low temperature resistance; the mounting seat 1002 and the support rod 1001 are connected by bolts, and the bolts used are made of A2-70 stainless steel.

[0049] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0050] In actual application, before the electric locomotive travels, the inclination angle of the connecting rod 1 3 is adjusted by the adjusting member 2 according to the actual situation to ensure the contact effect between the pantograph 6 and the contact network during travel. When the electric locomotive vibrates during travel, the spring support assembly 4 reduces the impact of the vibration on the pantograph top frame 5, and the buffer assembly 8 reduces the impact of the vibration on the pantograph bottom frame 1, thereby reducing the impact of the vibration on the pantograph of the electric locomotive;

[0051] In severe weather conditions such as low temperature, ice and snow, freezing rain, etc., the pantograph 6 can be raised and lowered smoothly by the shock-absorbing assembly 10 .

[0052] The working principles of the adjusting member 2 , the spring support assembly 4 , the buffer assembly 8 and the shock absorbing assembly 10 are as described above.

[0053] In summary, with the aid of the above-mentioned technical scheme of the present invention, the present invention can support the pantograph of the electric locomotive under the cooperation of the pantograph bottom frame 1, the spring support assembly 4, the pantograph top frame 5 and the buffer assembly 8, thereby reducing the impact of vibration on the pantograph of the electric locomotive when the electric locomotive is traveling on a road with poor road conditions; under the cooperation of the spring support assembly 4 and the buffer assembly 8, the vibration generated during the driving of the electric locomotive is ensured as much as possible under the action of the spring reset force, thereby improving the durability and reliability of the pantograph; under the action of the shock-absorbing assembly 10, when the pantograph 6 working environment is in severe weather such as low temperature, ice and snow, freezing rain, etc., the pantograph 6 can be better raised and lowered smoothly without changing the original structure of the pantograph 6, and the bow head and the shock-absorbing assembly 10 can be prevented from freezing after the pantograph 6 is lowered.

[0054] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pantograph spring support device for an electric locomotive, comprising a pantograph bottom frame (1), characterized in that: An adjusting member (2) is provided on one side of the pantograph bottom frame (1), a connecting rod (3) matching with the pantograph bottom frame (1) is provided on one side of the adjusting member (2), a spring support assembly (4) is provided at the other end of the connecting rod (3), a pantograph top frame (5) is provided at the top end of the spring support assembly (4), a pantograph (6) is provided at the top end of the pantograph top frame (5), and a support column (7) matching with the pantograph bottom frame (1) is provided on one side of the middle portion of the pantograph top frame (5); The bottom end of the pantograph bottom frame (1) is symmetrically provided with a buffer assembly (8), and the bottom end of each buffer assembly (8) is symmetrically provided with an insulator (9); A shock absorbing component (10) that matches the pantograph (6) is provided on one side of the top end of the pantograph bottom frame (1).

2. The electric locomotive pantograph spring support device according to claim 1, characterized in that: The adjusting member (2) comprises a support plate (201) arranged on one side of the pantograph bottom frame (1); a fixing frame (202) is provided at the top of the support plate (201); a threaded rod (203) cooperating with the connecting rod (3) is inserted into the top of the fixing frame (202); and a hand wheel (204) is provided on the other side of the threaded rod (203).

3. The electric locomotive pantograph spring support device according to claim 2, characterized in that: The spring support assembly (4) comprises a connecting tube (401) arranged at the top end of the connecting rod 1 (3), a supporting member (402) is provided at the top end of the connecting tube (401), and a connecting rod 2 (403) matched with the pantograph top frame (5) is provided at the top end of the supporting member (402).

4. The electric locomotive pantograph spring support device according to claim 3, characterized in that: The support member (402) comprises a protective shell (4021) arranged at the top end of the connecting rod (3), a spring (4022) being arranged at the top end of the protective shell (4021), and a protective shell (4023) cooperating with the spring (4022) being sleeved on the outer side of the protective shell (4021).

5. The electric locomotive pantograph spring support device according to claim 4, characterized in that: The buffer assembly (8) includes a sleeve connecting rod (801) symmetrically arranged at the bottom end of the pantograph bottom frame (1), a linkage plate (802) is arranged at the bottom end of the two groups of the sleeve connecting rods (801), a fixed plate (803) is symmetrically arranged at the top end of the linkage plate (802), a sliding rod (804) is arranged between the two groups of the fixed plates (803), and a slider (805) is symmetrically sleeved on the outer side of the sliding rod (804), and a connecting rod three (806) that cooperates with the bottom end of the pantograph bottom frame (1) is arranged on the side where the two groups of the sliders (805) are away from each other, and a spring two (807) is arranged on the side where the two groups of the sliders (805) are close to each other.

6. The electric locomotive pantograph spring support device according to claim 1, characterized in that: The shock absorbing assembly (10) comprises a support rod (1001) arranged at the top of the pantograph bottom frame (1), a mounting seat (1002) is symmetrically arranged at the top of the support rod (1001), a spring three (1003) matched with the pantograph (6) is arranged at the top of each mounting seat (1002), a spring base (1004) matched with the mounting seat (1002) is arranged on the inner side of each spring three (1003), and a connecting seat (1005) is arranged at the top of each spring three (1003); The outer side of the mounting seat (1002) is provided with a lower protective cover (1006) that matches the spring three (1003), and the outer side of the lower protective cover (1006) is provided with an upper protective cover (1007) that matches the connecting seat (1005).

7. The electric locomotive pantograph spring support device according to claim 6, characterized in that: The top end of the upper protective cover (1007) is arc-shaped.

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