CN217751191U - Brush spring assembly fixture of starter - Google Patents
Brush spring assembly fixture of starter Download PDFInfo
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- CN217751191U CN217751191U CN202221640777.0U CN202221640777U CN217751191U CN 217751191 U CN217751191 U CN 217751191U CN 202221640777 U CN202221640777 U CN 202221640777U CN 217751191 U CN217751191 U CN 217751191U
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- brush spring
- torsion bar
- movable rod
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Abstract
The utility model relates to the technical field of starter brush spring installation, and provides a starter brush spring assembly tool, which comprises a sleeve, an end head, a torsion bar, a movable rod and a compression spring; the end head is arranged at the front end of the sleeve; one end of the torsion bar extends into the sleeve from the rear end of the sleeve and is in threaded connection with the sleeve; the movable rod is arranged in the sleeve and can move along the axial direction of the sleeve; the compression spring is arranged in the sleeve and positioned between the movable rod and the torsion bar; the end of the end head far away from the sleeve is provided with a positioning pin extending along the axial direction of the sleeve; a sliding hole is formed in the end head and positioned on one side of the positioning pin; and the movable rod is provided with a pressing pin which penetrates through the sliding hole and extends out of the end head. The embodiment of the utility model provides a starter brush spring assembly fixture, in whole assembly process, assembly fixture's axial is perpendicular with the side plane of brush spring all the time, avoids appearing the phenomenon that the brush spring launches, has guaranteed the security when brushing the spring assembly.
Description
Technical Field
The utility model belongs to the technical field of starter brush spring installation technique and specifically relates to a starter brush spring assembly fixture.
Background
In the assembly process of the brush spring of the starter, the brush spring is generally clamped and installed on a brush frame bracket by a clamp manually at present, and then the brush in the brush box is pressed by the brush spring.
The current assembly method has the following problems: 1. the brush spring is not convenient to install even with the assistance of the clamp because the installation space of the brush spring is small; and when the clamp clamps the brush spring, the shape of the brush spring coating and the spring is easy to be damaged, and the elasticity of the piezoelectric brush is further influenced, so that the sound and the service life of the motor are influenced. 2. The manual work relies on skill, the skill requirement on an operator is high, the operator needs to be trained for a long time to work, and the uncertainty of the manual force direction and the manual force magnitude causes the operator to be difficult to operate, and the production efficiency is low. 3. The elasticity of brush spring is big, and the brush spring is easy to take place to launch when the assembly, has great potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that: the brush spring assembling tool for the starter is provided, and the safety during brush spring assembling is guaranteed.
The utility model provides a technical scheme that its technical problem adopted is: the starter brush spring assembly tool comprises a sleeve, an end head, a torsion bar, a movable rod and a compression spring; the end head is arranged at the front end of the sleeve; one end of the torsion bar extends into the sleeve from the rear end of the sleeve and is in threaded connection with the sleeve; the movable rod is arranged in the sleeve and can move along the axial direction of the sleeve; the compression spring is arranged in the sleeve and positioned between the movable rod and the torsion bar; the end of the end head far away from the sleeve is provided with a positioning pin extending along the axial direction of the sleeve; a sliding hole is formed in the end head and positioned on one side of the positioning pin; and the movable rod is provided with a pressing pin which penetrates through the sliding hole and extends out of the end head.
Furthermore, the sleeve is provided with a strip-shaped sliding groove which is communicated with the inner cavity of the sleeve and extends along the axial direction of the sleeve; and the movable rod is provided with a limiting pin which is positioned in the long strip-shaped sliding groove and can move along the long strip-shaped sliding groove.
Furthermore, two strip-shaped sliding grooves are symmetrically arranged on the sleeve.
Furthermore, a first containing cavity is arranged at the position, opposite to the end part of the compression spring, of the movable rod; a second containing cavity is arranged on the torsion bar opposite to the compression spring; and two ends of the compression spring are respectively arranged in the first accommodating cavity and the second accommodating cavity.
Further, the inner cavity of the sleeve comprises a first section and a second section which are sequentially communicated; the diameter of the first section is greater than the diameter of the second section; the end part of the torsion bar is in threaded connection with the first section of the inner cavity of the sleeve; the movable rod is in sliding fit with the second section of the inner cavity of the sleeve.
Further, the torsion bar comprises a holding section and a connecting section which are connected in sequence; the connecting section of the torsion bar is in threaded connection with the first section of the inner cavity of the sleeve; the cross-sectional dimension of the holding section is larger than that of the connecting section.
Further, the torsion bar further comprises a guide section connected with the connecting section; the guide section is in sliding fit with the second section of the inner cavity of the sleeve.
Furthermore, the outer surface of the holding section is provided with anti-skid grains.
Furthermore, a groove is arranged at the end of the end head facing the sleeve; the front end of the sleeve extends into the groove of the end head and is fixedly connected with the end head.
Furthermore, the sleeve is fixedly connected with the end head through a pin shaft.
The beneficial effects of the utility model are that:
1. the embodiment of the utility model provides a starter brush spring assembly fixture, when the brush spring is assembled, the locating pin passes the position with the restriction brush spring from the center of brushing the spring, through rotating the torsion bar so that compression spring provides the pressure of even increase, and then will brush the spring assembly on the brush yoke support through compressing tightly the round pin, in whole assembling process, assembly fixture's axial is all the time perpendicular with the lateral plane of brush spring, avoids appearing the phenomenon that the brush spring launched, security when having guaranteed the brush spring assembly.
2. The embodiment of the utility model provides a starter brush spring assembly fixture when assembly brush spring, has avoided the shape of damage brush spring cladding material and spring, has guaranteed the elasticity of press brush to the life of motor has been guaranteed.
3. The embodiment of the utility model provides a starter brush spring assembly fixture requires lowly to operator's technical ability, only needs to rotate the assembly that the torsion bar just can realize brushing the spring during operation, and easy operation, convenience have improved production efficiency.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below; it is obvious that the drawings in the following description are only some of the embodiments described in the present application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic structural diagram of a brush spring assembly fixture for a starter provided by an embodiment of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural view of the bushing;
FIG. 4 is a schematic view of the structure of the tip;
FIG. 5 is a schematic structural view of the torsion bar;
FIG. 6 is a schematic view of the movable bar;
fig. 7 is a schematic view of the assembled brush spring.
The reference numbers in the figures are: 1-sleeve pipe, 2-end, 3-torsion bar, 4-movable bar, 5-compression spring, 6-limit pin, 7-pin shaft, 8-brush spring, 9-brush spring positioning column, 10-brush holder bracket, 11-elongated chute, 12-first section, 13-second section, 21-positioning pin, 22-sliding hole, 23-groove, 31-second containing cavity, 32-holding section, 33-connecting section, 34-guiding section, 35-anti-slip pattern, 41-compression pin and 42-first containing cavity.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. In case of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.
Referring to fig. 1 to 6, the brush spring assembly tool for a starter provided by the embodiment of the present invention includes a sleeve 1, an end 2, a torsion bar 3, a movable rod 4 and a compression spring 5; the end head 2 is arranged at the front end of the sleeve 1; one end of the torsion bar 3 extends into the sleeve pipe 1 from the rear end of the sleeve pipe 1 and is in threaded connection with the sleeve pipe 1; the movable rod 4 is arranged in the sleeve 1 and can move along the axial direction of the sleeve 1; the compression spring 5 is arranged in the sleeve 1 and is positioned between the movable rod 4 and the torsion bar 3; the end of the head 2 far away from the sleeve 1 is provided with a positioning pin 21 extending along the axial direction of the sleeve 1; a sliding hole 22 is formed in the end head 2 and positioned on one side of the positioning pin 21; the movable rod 4 is provided with a pressing pin 41 which penetrates through the sliding hole 22 and extends out of the head 2.
Referring to fig. 1 and 2, in the brush spring assembly tool for a starter provided by the embodiment of the present invention, the torsion bar 3 is in threaded connection with the sleeve 1, so that the compression spring 5 in the sleeve 1 can be compressed by the torsion bar 3 by controlling the rotation of the torsion bar 3 relative to the sleeve 1; in the initial state, the compression spring 5 is in a compressed state, two ends of the compression spring are respectively abutted to the torsion bar 3 and the movable bar 4, and the compression pin 41 extends to the outside of the end head 2 under the action of the elastic force provided by the compression spring 5. The maximum length of the pressing pin 41 extending out of the end head 2 is less than the length of the positioning pin 21, and the length difference between the two is preferably equal to the width of the brush spring 8. The shape and size of the positioning pin 21 should be adapted to the shape and size of the center hole of the brush spring 8 so that the positioning pin 21 passes through the center of the brush spring 8 to limit the position of the brush spring 8 while preventing the brush spring 8 from rotating relative to the positioning pin 21.
Referring to fig. 1, fig. 2 and fig. 7, the embodiment of the present invention provides a working principle of a brush spring assembly tool for a starter, which is as follows: the operator holds the torsion bar 3 with his right hand, and passes the positioning pin 21 through the center of the brush spring 8 while bringing the end of the hold-down pin 41 into abutment with the side surface of the brush spring 8; then an operator holds the brush holder bracket 10 with the left hand and controls the right hand to enable the center of the brush spring 8 to be sleeved on the brush spring positioning column 9 of the brush holder bracket 10, and in the process, the tail end of the brush spring 8 is in contact with the brush holder bracket 10 and applies a counterforce to the pressing pin 41, so that the pressing pin 41 is contracted in the end head 2; then the torsion bar 3 is rotated by the right hand of an operator, the torsion bar 3 rotates relative to the sleeve 1 to continuously compress the compression spring 5, after the reset elastic force of the compression spring 5 is greater than the resistance between the tail end of the brush spring 8 and the brush holder bracket 10, the compression spring 5 drives the movable rod 4 to move in the sleeve 1, the pressing pin 41 further extends to the outside of the end head 2, the brush spring 8 is pressed on the brush holder bracket 10 through the pressing pin 41, and the assembly of the brush spring 8 is completed.
The embodiment of the utility model provides a starter brush spring assembly fixture, when assembly brush spring 8, locating pin 21 passes the position with restriction brush spring 8 from the center of brush spring 8, through rotating torsion bar 3 so that compression spring 5 provides the pressure of even increase, and then will brush spring 8 assembly on brush yoke support 10 through the pressure pin 41, in whole assembly process, the axial of frock is perpendicular with brush spring 8's side plane all the time, not only avoid appearing the phenomenon that brush spring 8 launches, the security when having guaranteed brush spring 8 assembly, and avoided the shape of damage brush spring cladding material and spring, the elasticity of brush has been guaranteed, thereby the life of motor has been guaranteed. Compare with the mode that the tradition adopted clamp assembly brush spring, the embodiment of the utility model provides a starter brush spring assembly fixture requires lowly to operator's technical ability, only needs to rotate torsion bar 3 during the operation and just can realize the assembly of brush spring, and easy operation, convenience have improved production efficiency.
Referring to fig. 1, 2 and 3, in the brush spring assembly tool for a starter provided in an embodiment of the present invention, the sleeve 1 is provided with a strip-shaped chute 11 that is communicated with the inner cavity of the sleeve 1 and extends along the axial direction of the sleeve 1; the movable rod 4 is provided with a limit pin 6 which is positioned in the long strip-shaped chute 11 and can move along the long strip-shaped chute 11. Preferably, two elongated sliding grooves 11 are symmetrically arranged on the sleeve 1.
When the movable rod 4 reciprocates in the sleeve 1, the limiting pin 6 is driven to reciprocate in the elongated sliding groove 11, so that the movable rod 4 can only reciprocate along the axial direction of the sleeve 1 and cannot rotate relative to the sleeve 1 by utilizing the matching of the limiting pin 6 and the elongated sliding groove 11, and further when the brush spring is assembled, the pressing pin 41 is ensured to only apply an acting force along the axial direction of the sleeve 1 to the brush spring, so that other unnecessary acting forces are avoided.
Referring to fig. 2, 5, and 6, in the starter brush spring assembly fixture provided in the embodiment of the present invention, a first accommodating cavity 42 is provided on the movable rod 4 at a position facing an end of the compression spring 5; a second accommodating cavity 31 is formed in the position, opposite to the compression spring 5, of the torsion bar 3; both ends of the compression spring 5 are respectively disposed in the first receiving cavity 42 and the second receiving cavity 31. By respectively arranging both ends of the compression spring 5 in the first and second cavities 42 and 31, the reliability of the compression spring 5 after installation is improved. Of course, in other embodiments, both ends of the compression spring 5 may be in contact with the movable rod 4 and the torsion bar 3, respectively.
Referring to fig. 2 and 3, in the starter brush spring assembly tool provided in the embodiment of the present invention, the inner cavity of the casing 1 includes a first section 12 and a second section 13 that are sequentially communicated; the diameter of the first section 12 is greater than the diameter of the second section 13; the end part of the torsion bar 3 is in threaded connection with the first section 12 of the inner cavity of the sleeve 1; the movable rod 4 is in sliding fit with the second section 13 of the inner cavity of the cannula 1.
An internal thread section is arranged in the first section 12 of the inner cavity of the sleeve 1; an external thread section matched with the internal thread section is arranged at one end of the torsion bar 3; through the connection of this internal thread section and external thread section, realize the threaded connection of sleeve pipe 1 and torsion bar 3 to through rotating torsion bar 3, just adjustable torsion bar 3's the end extends the length in the sleeve pipe 1.
The movable rod 4 is a sliding fit in the second section 13 of the lumen of the cannula 1 such that the movable rod 4 can move back and forth within the cannula 1. In one embodiment, the second section 13 is a constant diameter section, and the diameter of the movable rod 4 is adapted to the diameter of the second section 13, so that the movable rod 4 can move back and forth in the casing 1. In this embodiment, the second section 13 includes two cylindrical sections with diameters decreasing in sequence from the torsion bar 3 to the end 2, the movable rod 4 includes two cylindrical sections with diameters decreasing in sequence from the torsion bar 3 to the end 2, and the two cylindrical sections of the movable rod 4 are matched with the diameters of the two cylindrical sections of the second section 13.
Referring to fig. 5, in the brush spring assembly tool for the starter provided in the embodiment of the present invention, the torsion bar 3 includes a holding section 32 and a connecting section 33 which are connected in sequence; the connecting section 33 of the torsion bar 3 is in threaded connection with the first section 12 of the inner cavity of the sleeve pipe 1; the cross-sectional dimension of the gripping section 32 is larger than the cross-sectional dimension of the connecting section 33.
The gripping section 32 is intended to be gripped by an operator and the connecting section 33 is intended to be connected to the cannula 1. The first section 12 of the inner cavity of the sleeve 1 is provided with an internal thread section, and the connecting section 33 is provided with an external thread section matched with the internal thread section; the threaded connection of the bushing 1 and the torsion bar 3 is realized by the connection of the internal thread section and the external thread section. The cross-sectional size of the holding section 32 is larger than that of the connecting section 33, so that the contact area between an operator and the holding section 32 can be increased, and the holding by the operator is facilitated.
Referring to fig. 5, the torsion bar 3 further includes a guide section 34 connected to the connection section 33; the guide section 34 is a sliding fit in the second section 13 of the lumen of the cannula 1. The second receiving chamber 31 is arranged on the guide section 34. By providing the guide section 34, stability and reliability of the movement of the guide section 34 within the casing 1 are ensured in guiding cooperation of the guide section 34 and the second section 13 when the torsion bar 3 is rotated.
Referring to fig. 1 and 5, the outer surface of the grip segment 32 is provided with an anti-slip pattern 35. The anti-slip pattern 35 is formed by rolling. By providing the anti-slip threads 35, when the operator holds the grip section 32, the friction between the operator and the grip section 32 can be increased, thereby preventing the occurrence of slipping.
Referring to fig. 1, 2 and 4, the end of the tip 2 facing the sleeve 1 is provided with a groove 23; the front end of the sleeve 1 extends into the groove 23 of the end head 2 and is fixedly connected with the end head 2. The sleeve 1 is fixedly connected with the end head 2 through a pin shaft 7.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The starter brush spring assembly tool is characterized by comprising a sleeve (1), an end head (2), a torsion bar (3), a movable rod (4) and a compression spring (5);
the end head (2) is arranged at the front end of the sleeve (1); one end of the torsion bar (3) extends into the sleeve (1) from the rear end of the sleeve (1) and is in threaded connection with the sleeve (1); the movable rod (4) is arranged in the sleeve (1) and can move along the axial direction of the sleeve (1); the compression spring (5) is arranged in the sleeve (1) and is positioned between the movable rod (4) and the torsion bar (3);
the end of the end head (2) far away from the sleeve (1) is provided with a positioning pin (21) extending along the axial direction of the sleeve (1); a sliding hole (22) is formed in one side, located on the positioning pin (21), of the end head (2); and a pressing pin (41) which penetrates through the sliding hole (22) and extends out of the end head (2) is arranged on the movable rod (4).
2. The assembly tooling for the brush spring of the starter according to claim 1, wherein the sleeve (1) is provided with a long strip-shaped chute (11) which is communicated with the inner cavity of the sleeve (1) and extends along the axial direction of the sleeve (1); the movable rod (4) is provided with a limiting pin (6) which is positioned in the long strip-shaped sliding groove (11) and can move along the long strip-shaped sliding groove (11).
3. The assembly tooling for the brush spring of the starter according to claim 2, wherein the sleeve (1) is symmetrically provided with two elongated sliding grooves (11).
4. The assembly tooling for the brush spring of the starter according to claim 1, wherein a first containing cavity (42) is arranged on the movable rod (4) at a position opposite to the end part of the compression spring (5); a second containing cavity (31) is formed in the position, opposite to the compression spring (5), of the torsion bar (3); two ends of the compression spring (5) are respectively arranged in the first containing cavity (42) and the second containing cavity (31).
5. The assembly tooling for the brush spring of the starter according to claim 1, wherein the inner cavity of the sleeve (1) comprises a first section (12) and a second section (13) which are communicated in sequence; the diameter of the first section (12) is greater than the diameter of the second section (13); the end part of the torsion bar (3) is in threaded connection with the first section (12) of the inner cavity of the sleeve (1); the movable rod (4) is in sliding fit with the second section (13) of the inner cavity of the sleeve (1).
6. The starter brush spring assembly fixture according to claim 5, characterized in that the torsion bar (3) comprises a holding section (32) and a connecting section (33) which are connected in sequence; the connecting section (33) of the torsion bar (3) is in threaded connection with the first section (12) of the inner cavity of the sleeve (1); the cross-sectional dimension of the gripping section (32) is greater than the cross-sectional dimension of the connecting section (33).
7. The assembling tool for the brush spring of the starter according to claim 6, wherein the torsion bar (3) further comprises a guide section (34) connected with the connecting section (33); the guide section (34) is in sliding fit with the second section (13) of the inner cavity of the cannula (1).
8. The starter brush spring assembly fixture according to claim 6, characterized in that the outer surface of the holding section (32) is provided with anti-slip lines (35).
9. The assembly tooling for the brush spring of the starter according to claim 1, wherein the end of the end head (2) facing the sleeve (1) is provided with a groove (23); the front end of the sleeve (1) extends into the groove (23) of the end head (2) and is fixedly connected with the end head (2).
10. The assembly tooling for the brush spring of the starter according to claim 9, wherein the sleeve (1) is fixedly connected with the end head (2) through a pin shaft (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221640777.0U CN217751191U (en) | 2022-06-28 | 2022-06-28 | Brush spring assembly fixture of starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221640777.0U CN217751191U (en) | 2022-06-28 | 2022-06-28 | Brush spring assembly fixture of starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217751191U true CN217751191U (en) | 2022-11-08 |
Family
ID=83897604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221640777.0U Active CN217751191U (en) | 2022-06-28 | 2022-06-28 | Brush spring assembly fixture of starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217751191U (en) |
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2022
- 2022-06-28 CN CN202221640777.0U patent/CN217751191U/en active Active
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