CN217981649U - Contact connecting device for handcart switch loop resistance test - Google Patents
Contact connecting device for handcart switch loop resistance test Download PDFInfo
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- CN217981649U CN217981649U CN202222000542.1U CN202222000542U CN217981649U CN 217981649 U CN217981649 U CN 217981649U CN 202222000542 U CN202222000542 U CN 202222000542U CN 217981649 U CN217981649 U CN 217981649U
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- contact
- sliding
- connecting device
- rotating shaft
- resistance test
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Abstract
The utility model discloses a contact connecting device for handcart switch loop resistance test, which comprises an insulating shell, a rotating shaft and a sliding contact; the rotating shaft is sleeved in the insulating shell in an empty mode and is connected with the sliding contact in a sliding mode, the sliding contact is driven to move along the radial direction of the rotating shaft through rotation of the rotating shaft, the sliding contact moves towards the direction of the contact of the handcart switch, and then the sliding contact is contacted and conducted with the contact of the handcart switch.
Description
Technical Field
The utility model relates to a high-tension apparatus technical field specifically is a contact connecting device for handcart switch return circuit resistance test.
Background
The circuit resistance test is one of important pre-test items of the handcart switch, the heat productivity of a switch contact surface can be increased due to the fact that the circuit resistance is too large, and accidents are caused, so that the circuit resistance test plays a vital role in a performance test of the switch.
The current of the return circuit resistance tester of present handcart switch, the connection of voltage line and switch contact are realized by big fastener, and such connection method has following not enough: firstly, the contact spring is easy to wear and deform under the pressure of the wire clamp, so that the spring is easy to loosen, and poor contact of the movable contact and the fixed contact is further caused. Secondly, according to the requirements of preventive test regulations, the current is not less than 100A when a loop resistance test is carried out, and the large current causes the spring of the switch contact to lose elasticity, so that the spring is loosened.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a contact connecting device for handcart switch loop resistance test stretches out through gear and archimedes spiral drive arrangement's sliding contact, realizes contact connecting device and the inboard reliable connection of handcart contact to connecting device and contact spring direct contact have been avoided.
The utility model discloses a realize through following technical scheme:
a contact connecting device for handcart switch loop resistance test comprises an insulating shell, a rotating shaft and a sliding contact;
the rotating shaft is sleeved in the insulating shell, the sliding contacts are arranged at one end of the insulating shell in a sliding mode and are uniformly distributed in the circumferential direction, the end portion of the rotating shaft is provided with a linear sliding structure, the linear sliding structure is connected with the sliding contacts, and when the rotating shaft rotates, the sliding contacts can be driven to slide along the radial direction of the rotating shaft, so that the end portions of the sliding contacts are conducted with the contact of the handcart switch.
Preferably, the linear sliding structure is a spiral sliding groove arranged on the end face of the rotating shaft.
Preferably, the center line of the spiral chute is an archimedean spiral.
Preferably, the end of the insulating housing is provided with a chute, the axial direction of the chute is arranged along the radial direction of the rotating shaft, the sliding contact is arranged in the chute, one side of the sliding contact, which is close to the spiral chute, is provided with a guide block, and the guide block is connected with the spiral chute in a sliding manner.
Preferably, one side of the sliding groove, which is close to the rotating shaft, is provided with a guide groove, the axial direction of the guide groove is parallel to the axial direction of the sliding groove, and the guide block penetrates through the guide groove and extends into the spiral sliding groove.
Preferably, the insulating housing includes a main housing, and a fixing plate and an end plate disposed at both ends of the main housing, wherein a shaft hole is disposed at the center of the main housing, the rotating shaft is fitted in the shaft hole, the fixing plate is fixedly connected to one end of the main housing and located at an end close to the sliding contact, and the end plate is fixed to the other end of the main housing and axially located with respect to the rotating shaft.
Preferably, the fixed plate is provided with three sliding grooves which are uniformly distributed along the central circumference of the fixed plate, each sliding groove is internally provided with a sliding block contact, and one ends of the three sliding contacts, which are close to the outer side wall of the insulating shell, are located at the same diameter.
Preferably, one end of the insulating shell, which is far away from the sliding contact, is provided with a driving device, and the driving device is in meshed connection with the rotating shaft and is used for driving the rotating shaft to rotate.
Preferably, the driving means is an insulated rotary handle mounted on the main housing, and a lower end of the rotary handle extends into the main housing and engages with an end of the rotary shaft.
Preferably, the end of the rotating shaft is provided with end face teeth, the lower end of the rotating handle is fixedly sleeved with a gear, and the gear is arranged in the main shell and meshed with the end face teeth.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model provides a contact connecting device for handcart switch loop resistance test, which comprises an insulating shell, a rotating shaft and a sliding contact; the rotating shaft is sleeved in the insulating shell in an empty mode and is connected with the sliding contact in a sliding mode, the sliding contact is driven to move along the radial direction of the rotating shaft through rotation of the rotating shaft, the sliding contact moves towards the direction of the contact of the handcart switch, and then the sliding contact is contacted and conducted with the contact of the handcart switch.
Furthermore, the axial direction of the spiral chute is an Archimedes spiral, so that the rotating shaft can drive the sliding contact to move towards the outside of the insulating shell in the rotating process, and further contact and conduct with the inner side of the contact of the handcart switch.
Drawings
Fig. 1 is a front view of the contact connecting device of the present invention;
fig. 2 is a top view of the contact connecting device of the present invention;
figure 3 is a side view of the contact connecting device of the present invention;
FIG. 4 is an internal structure view of the connecting device of the present invention;
fig. 5 is an end view of the rotating shaft of the present invention;
fig. 6 is a structural diagram of the fixing plate of the present invention.
In the figure: 1. rotating the handle; 2. a rotating shaft; 3. a sliding contact; 4. a current line; 5. a voltage line; 6. An insulating housing; 7. a fixing plate; 8. a chute; 9. a guide block; 10. a spiral chute; 11. a guide groove.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings, which are provided for purposes of illustration and not limitation.
Referring to fig. 1-6, a contact connecting device for handcart switch loop resistance test comprises an insulating housing 6, a rotating shaft 2 and a sliding contact 3.
The rotation axis 2 suit is in insulating housing, and sliding contact 3 slides and sets up the one end at insulating housing 6 and be the circumference equipartition, and the tip of rotation axis 2 sets up linear sliding structure, and linear sliding structure is connected with sliding contact, can drive sliding contact 3 along the radial slip of rotation axis 2 when the rotation axis rotates, makes sliding contact 3's tip and handcart switch's contact switch on.
The axial of spiral spout is the Archimedes spiral, therefore the outside removal of rotation axis pivoted in-process can drive sliding contact to insulating housing, and then switches on with the inboard contact of handcart switch's contact, because the mode that adopts machinery to exert pressure carries out the contact and switches on, realizes connecting device and the inboard reliable connection of handcart contact to connecting device and contact spring direct contact have been avoided.
In this embodiment, the quantity of sliding contact is three, and three sliding contact is along the central circumference equipartition of rotation axis, and two adjacent sliding contact's axial contained angle is 120 promptly, and the one end that sliding contact is close to the rotation axis center is connected with the wire, and wherein two sliding contact connect current line 4, and voltage line 5 is connected to another sliding contact, and the axle center of rotation axis is provided with the line hole, and the wire passes the line hole and draws forth to the outside from insulating housing's the other end, the one end that three sliding contact is close to the insulating housing lateral wall is located same diameter.
The insulating shell 6 comprises a main shell body, and a fixing plate and an end plate which are arranged at two ends of the main shell body, wherein a shaft hole is formed in the center of the main shell body, the rotating shaft is assembled in the shaft hole, the fixing plate is fixedly connected to one end of the main shell body and is positioned at one end, close to the rotating shaft, with a spiral chute, and the end plate is fixed to the other end of the main shell body and is positioned at the end part of the rotating shaft.
Be provided with three spout on the fixed plate 7, three spout is along the central circumference equipartition of fixed plate, assembles a slider contact in every spout, and the spout is close to one side of rotation axis and is provided with guide way 11, and the guide way be the bar groove and with the axial direction parallel of spout, one side that the slider is close to the rotation axis is provided with guide block 9, and the guide block passes guide way 11 and stretches into to the spiral spout.
And a driving device is arranged at one end of the insulating shell, which is far away from the sliding contact, and the driving device is meshed with the rotating shaft and is used for driving the rotating shaft to rotate.
Drive arrangement is twist grip 1, and twist grip 1 is installed on the main casing body, and twist grip 1's lower extreme stretches into the main casing body in and with the tip meshing of rotation axis, and twist grip 1's upper end is located the outside of the main casing body, and the tip of rotation axis is provided with the terminal surface tooth, and the fixed cover of lower extreme of twist grip 1 is equipped with the gear, the gear set to the main casing body in and with the terminal surface tooth meshing, rotate twist grip 1 and drive the rotation axis rotation through the terminal surface tooth, be provided with the insulating layer on the twist grip.
The utility model provides a pair of a contact connecting device for handcart switch return circuit resistance test, including twist grip, insulating casing and rotation axis, twist grip comprises insulating handle and gear, and the tip of rotation axis is provided with the terminal surface tooth, makes the terminal surface tooth drive the rotation axis rotation through rotatory insulating handle, and twist grip's pinion just drives the gear wheel on the drive column, makes the drive column rotatory. The contact side of rotation axis is Archimedes spiral line groove, and three sliding contact and Archimedes spiral line groove sliding connection, and when the rotation axis rotated, three sliding contact will stretch out in the outside removal of Archimedes spiral line groove's effect, and two of them connect the current line in three chucking contact, and a connection voltage line utilizes ampere rule to realize the test of return circuit resistance.
The following is to the utility model provides a pair of a contact connecting device's for handcart switch return circuit resistance test application method carries out detailed explanation.
Firstly, before testing, the sliding contact is adjusted to an initial position, namely the sliding contact is positioned in the sliding groove, then, one end of the insulating shell, which is provided with the sliding contact, extends into a preset position in the handcart switch contact, the rotating handle is rotated clockwise, the rotating handle drives the rotating shaft to rotate through the gear, the spiral sliding groove is synchronously rotated, and in the rotating process of the spiral sliding groove, the three sliding contacts move towards the direction of the insulating shell and extend out until the sliding contact is contacted with and conducted with the inner side of the handcart switch contact, so that reliable connection with the interior of the contact is realized. After the test is finished, the rotating handle is rotated anticlockwise, the clamping contact can retract into the sliding groove, and the contact connecting device can be taken down at the moment.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (10)
1. A contact connecting device for handcart switch loop resistance test is characterized by comprising an insulating shell (6), a rotating shaft (2) and a sliding contact (3);
rotation axis (2) suit is in insulating housing, and sliding contact (3) slide and set up the one end at insulating housing (6) and be the circumference equipartition, and the tip of rotation axis (2) sets up linear sliding structure, and linear sliding structure is connected with sliding contact, can drive sliding contact (3) along the radial slip of rotation axis (2) when the rotation axis rotates, makes sliding contact's (3) tip and handcart switch on the contact.
2. The contact connecting device for handcart switch loop resistance test according to claim 1, characterized in that the linear sliding structure is a spiral chute (10) arranged on the end face of the rotating shaft (2).
3. The contact connecting device for handcart switch loop resistance test according to claim 2, characterized in that the centre line of the spiral chute (10) is an Archimedes spiral.
4. The contact connecting device for the handcart switch loop resistance test is characterized in that a sliding groove (8) is formed in the end portion of the insulating shell (6), the axial direction of the sliding groove (8) is arranged along the radial direction of the rotating shaft, the sliding contact is arranged in the sliding groove (8), a guide block is arranged on one side, close to the spiral sliding groove (10), of the sliding contact, and the guide block is in sliding connection with the spiral sliding groove (10).
5. The contact connecting device for the handcart switch loop resistance test according to claim 4, wherein one side of the sliding groove (8) close to the rotating shaft is provided with a guide groove (11), the axial direction of the guide groove is parallel to the axial direction of the sliding groove, and the guide block penetrates through the guide groove and extends into the spiral sliding groove (10).
6. A contact connecting device for handcart switch loop resistance test according to claim 1 or 4, characterized in that, insulating housing (6) includes the main casing body and sets up fixed plate and the end plate at its both ends, the center of the main casing body is provided with the shaft hole, the rotation axis is adorned in the shaft hole, the fixed plate rigid coupling is in the one end of the main casing body to be located the one end that is close to sliding contact, the end plate is fixed at the other end of the main casing body and is to rotation axis axial positioning.
7. The contact connecting device for the handcart switch loop resistance test according to claim 6, wherein the fixing plate (7) is provided with three sliding grooves which are uniformly distributed along the central circumference of the fixing plate, each sliding groove is provided with a sliding block contact, and one ends of the three sliding contacts, which are close to the outer side wall of the insulating shell, are located at the same diameter.
8. The contact connecting device for the handcart switch loop resistance test is characterized in that one end, away from the sliding contact, of the insulating shell is provided with a driving device, and the driving device is meshed with the rotating shaft and used for driving the rotating shaft to rotate.
9. The contact connecting device for the handcart switch loop resistance test according to claim 8, wherein the driving device is an insulated rotating handle (1), the rotating handle (1) is installed on the main shell, and the lower end of the rotating handle (1) extends into the main shell and is meshed with the end of the rotating shaft.
10. The contact connecting device for handcart switch loop resistance test according to claim 9, characterized in that the end of the rotating shaft is provided with face teeth, the lower end of the rotating handle (1) is fixedly sleeved with a gear, and the gear is arranged in the shell and meshed with the face teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222000542.1U CN217981649U (en) | 2022-07-29 | 2022-07-29 | Contact connecting device for handcart switch loop resistance test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222000542.1U CN217981649U (en) | 2022-07-29 | 2022-07-29 | Contact connecting device for handcart switch loop resistance test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217981649U true CN217981649U (en) | 2022-12-06 |
Family
ID=84255347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222000542.1U Active CN217981649U (en) | 2022-07-29 | 2022-07-29 | Contact connecting device for handcart switch loop resistance test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217981649U (en) |
-
2022
- 2022-07-29 CN CN202222000542.1U patent/CN217981649U/en active Active
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