CN219757285U - Worm gear clearance adjustment detection device - Google Patents
Worm gear clearance adjustment detection device Download PDFInfo
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- CN219757285U CN219757285U CN202320303759.1U CN202320303759U CN219757285U CN 219757285 U CN219757285 U CN 219757285U CN 202320303759 U CN202320303759 U CN 202320303759U CN 219757285 U CN219757285 U CN 219757285U
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- worm gear
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- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to a worm gear clearance adjustment detection device. The problem of current worm gear clearance adjustment detects need formulate independent frock, exists with high costs is solved. The device comprises a worm arranged in a worm wheel shell, an elastic adjusting mechanism is rotatably connected to the worm wheel shell, the elastic adjusting mechanism is arranged on a bearing at one end of the worm in a top mode, and a displacement detecting mechanism for detecting displacement of the elastic adjusting mechanism is arranged on the elastic adjusting mechanism. The utility model has simple and compact integral structure, convenient assembly and cost saving. The worm gear meshing gap can be detected in real time and can be effectively controlled. The use is not limited by the field, and the gap detection and adjustment can be completed on the whole vehicle. The elastic adjusting mechanism ensures that the worm wheel is tightly attached to the worm, the meshing gap between the worm wheel and the worm is stable, and abnormal noise cannot be generated due to overlarge gap.
Description
Technical Field
The utility model relates to the technical field of gap detection equipment, in particular to a worm gear gap adjustment detection device.
Background
In the whole vehicle development process, the application of the electric steering system is more and more common, the use of the worm and gear power assisting structure in the electric steering system is most common, and along with the higher and higher performance requirements of the whole vehicle, the performance requirements on the worm and gear power assisting structure are also higher and higher, the friction moment of the worm and gear is required to be as small as possible, and no abnormal noise is generated in the use process. Therefore, the adjustment and detection of the gap between the worm and the gear are particularly important, and the current gap adjustment and detection are realized by making a separate tool, so that the cost is high.
Disclosure of Invention
The utility model mainly solves the problems that an independent tool is required to be formulated in the existing worm and gear clearance adjustment detection, and the cost is high, and provides the worm and gear clearance adjustment detection device which can realize clearance detection and adjustment on the whole vehicle without disassembling parts, thereby being convenient and efficient.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a worm gear clearance adjustment detection device, includes the worm that sets up in the worm wheel casing, rotationally connects with elastic adjustment mechanism on the worm wheel casing, and elastic adjustment mechanism overhead is provided with the displacement detection mechanism who detects its displacement on the bearing of worm one end on elastic adjustment mechanism. According to the utility model, the elastic adjusting mechanism is propped against the bearing at one end of the worm, the moment is applied to the elastic adjusting mechanism to adjust the position of the elastic adjusting mechanism, the displacement change of the elastic adjusting mechanism represents the gap value of the worm gear, the gap value of the worm gear is adjusted by adjusting the position of the elastic adjusting mechanism, and the displacement detecting mechanism detects the displacement of the elastic adjusting mechanism, so that the real-time detection of the gap value of the worm gear is realized. The utility model has simple and compact integral structure, convenient assembly and cost saving. The device can detect in time and effectively control the meshing gap of the worm and gear, can complete gap detection and adjustment on the whole vehicle without the limitation of the field. The elastic load of the elastic adjusting mechanism has little influence on the friction rotation torque of the worm gear and the worm. Under the condition that the elastic adjusting mechanism ensures that the worm wheel and the worm are tightly attached, the meshing gap between the worm wheel and the worm is stable, and abnormal sound cannot be generated due to overlarge gap.
As a preferable scheme of the scheme, the elastic adjusting mechanism comprises a connecting shell and a push rod, wherein an adjusting groove is formed in the connecting shell, the push rod is limited and arranged in the adjusting groove, a spring groove is formed in the bottom of the push rod, and a reset spring is arranged in the spring groove. In this scheme ejector pin is spacing in adjusting the recess, and the ejector pin can be adjusted along the axial in adjusting the recess, and adjusting range is restricted by reset spring and adjusting the recess, and the front end of ejector pin is outstanding outside adjusting the recess, and reset spring one end top is adjusting the recess bottom, and the other end top is in spring groove bottom, and reset spring is in compression form, and the ejector pin is outwards pushed up all the time under reset spring's elasticity effect, compresses tightly on the bearing.
As a preferable scheme of the scheme, the ejector rod comprises a sliding part and a plug arranged on the sliding part, a check ring is arranged on the opening of the adjusting groove, the sliding part is movably arranged in the adjusting groove and blocked by the check ring, and the plug penetrates out of the check ring. The sliding part is matched with the adjusting groove in size, the diameter of the plug is smaller than that of the sliding part, the plug is arranged in the middle of the end face of the sliding part, the length of the sliding part is smaller than that of the adjusting groove, the sliding part can move back and forth in the adjusting groove and is blocked by the check ring, the plug is limited in the adjusting groove and penetrates out of the middle through hole of the check ring, and the plug is propped against the bearing.
As a preferable mode of the above-mentioned mode, a circle of concave edge is provided on the outer wall of the sliding portion. So that the sliding part can slide in the adjusting groove more smoothly.
As a preferable scheme of the scheme, the outer surface of the connecting shell comprises a rear end part and a front end part which are in stepped retraction, an external thread is arranged on the rear end part, a mounting hole matched with the shape of the connecting shell is formed in the worm gear shell, the mounting hole comprises an external ring surface and an internal ring surface which are in stepped retraction, and an internal thread is arranged on the external ring surface. The connecting shell is arranged in the mounting hole and is in threaded connection with the mounting hole, and the position of the elastic adjusting mechanism, namely the position of the ejector rod in the adjusting groove, can be adjusted by rotating the connecting shell. The ejector rod always presses the bearing under the action of the elastic force of the reset spring, so that the worm gear is tightly attached, the displacement change of the ejector rod is detected by the displacement detection mechanism by applying moment on the shell, namely rotation, the displacement change represents the gap value of the worm gear, and the displacement detection mechanism detects the gap value of the worm gear in real time.
As a preferable scheme of the scheme, a circle of sealing groove is formed in the outer wall of the front end part, and a sealing ring is embedded in the sealing groove. The front end part of the connecting shell is embedded in the inner annular surface of the mounting hole after the elastic adjusting mechanism is mounted, and the sealing ring plays a role in sealing between the front end part and the inner annular surface, so that sundries or water vapor are prevented from entering the worm gear shell.
As a preferable scheme of the scheme, the displacement detection mechanism comprises a mounting shell and a displacement detector, wherein the mounting shell is arranged on the connecting shell, an insertion hole is formed in the mounting shell and is communicated with the adjusting groove, the displacement detector is fixed in the insertion hole, and a thimble of the displacement detector is propped against the ejector rod. In this scheme installation casing and connection casing body coupling, installation casing are located connection casing rear end, and the patchhole communicates with the regulation recess, and displacement detector fixes in the installation casing, and displacement detector includes the thimble, and the thimble front end passes the patchhole and gets into the regulation recess top on the bottom of the spring groove of ejector pin. The displacement change of the ejector rod is transmitted to the ejector pin, the displacement represents the clearance value of the worm gear and the worm, and the displacement is detected in real time by a displacement detector.
As a preferable scheme of the scheme, a plurality of fixing holes are formed in the outer wall of the installation shell, the fixing holes are communicated with the insertion holes, bolts are connected in the fixing holes in a threaded mode, and the front ends of the bolts are propped against the displacement detector to fix the displacement detector. The fixing holes are at least two, the fixing holes are perpendicular to the insertion holes, bolts are screwed into the fixing holes, and the front ends of the bolts are propped against the displacement detector to be fixed.
The utility model has the advantages that:
1. the whole structure is simple and compact, the assembly is convenient, and the cost is saved.
2. The worm gear meshing gap can be detected in real time and can be effectively controlled.
3. The use is not limited by the field, and the gap detection and adjustment can be completed on the whole vehicle.
4. The elastic adjusting mechanism ensures that the worm wheel is tightly attached to the worm, the meshing gap between the worm wheel and the worm is stable, and abnormal noise cannot be generated due to overlarge gap.
Drawings
FIG. 1 is a schematic illustration of a configuration of the present utility model in connection with a worm gear mechanism;
FIG. 2 is a schematic view of a construction of the present utility model;
fig. 3 is an enlarged schematic view of the structure at a in fig. 1.
The device comprises a worm 2, a bearing 3, a bushing 4, a connecting shell 5, an ejector rod 6, an adjusting groove 7, a spring groove 8, a return spring 9, a sliding part 10, a plug 11, a retainer ring 12, a concave edge 13, a front end 14, a rear end 15, a mounting hole 16, a sealing groove 17, a sealing ring 18, a mounting shell 19, an inserting hole 20, a displacement detector 21, an ejector rod 22 and a fixing hole.
Detailed Description
The technical scheme of the utility model is further described below through examples and with reference to the accompanying drawings.
Examples:
the device for detecting gap adjustment of worm gear in this embodiment, as shown in fig. 1, comprises an elastic adjustment mechanism and a displacement detection mechanism, wherein the elastic adjustment mechanism is rotatably connected to the worm gear housing, the front end of the elastic adjustment mechanism is propped against the bearing 2 at the upper end of the worm 1, and the displacement detection mechanism is integrally connected to the elastic adjustment mechanism to detect the displacement value of the elastic adjustment mechanism.
As shown in fig. 2 and 3, the elastic adjusting mechanism comprises a connecting shell 4 and a push rod 5, a circular adjusting groove 6 is formed in the connecting shell, a retainer ring 11 is arranged on the opening of the adjusting groove, and the adjusting groove forms a clamping groove with a small opening and a large inner cavity. The ejector rod comprises a sliding part 9 and a plug 10 arranged on the sliding part, the sliding part and the plug are in cylindrical shape and are integrally connected, the length of the sliding part is smaller than the depth of the adjusting groove, the sliding part is arranged in the adjusting groove in a sliding mode, and the plug penetrates out of the check ring. A circle of concave edge 12 is arranged on the outer wall of the sliding part, a spring groove 7 is formed in the bottom end of the sliding part, a return spring 8 is arranged in the spring groove, one end of the return spring is propped against the bottom of the spring groove, the other end of the return spring is propped against the bottom of the adjusting groove, the return spring is in a compressed state, and the ejector rod is always propped outwards. The outer surface of the connecting shell comprises a rear end 14 and a front end 13 which are in stepped retraction, an external thread is arranged on the rear end, a circle of sealing groove 16 is arranged on the outer wall of the front end, and a sealing ring 17 is embedded in the sealing groove.
As shown in fig. 1 and 2, the displacement detection mechanism includes a mounting housing 18 and a displacement detector 20, the mounting housing is disposed on the connection housing 4, an insertion hole 19 is disposed on the mounting housing, the insertion hole is communicated with the adjustment groove, the displacement detector is disposed in the insertion hole, a plurality of fixing holes are disposed on the outer wall of the mounting housing, the fixing holes are communicated with the insertion hole, a bolt is screwed in the fixing holes, and the front end of the bolt is propped against the displacement detector to fix the displacement detector. The displacement detector position comprises a thimble, the thimble penetrates into the adjusting groove and enters the spring groove, a clamping groove is formed in the bottom of the spring groove, the thimble is arranged in the clamping groove in an overhead mode, the displacement change of the thimble is transmitted to the thimble, the displacement represents a worm gear clearance value, and the displacement detector detects the displacement in real time.
The device is arranged on a worm gear shell, a mounting hole matched with the shape of a connecting shell is formed in the worm gear shell, a hole is correspondingly formed in a bushing 3, the mounting hole comprises an outer ring surface and an inner ring surface which are in stepped retraction, an inner thread is arranged on the outer ring surface, the mounting shape is matched with the outer shape of the connecting shell, and the device is arranged in the mounting hole in a threaded connection mode.
The device is convenient to assemble, is not limited by sites, can detect and adjust Wenchang gaps on the whole vehicle, and comprises the following steps:
the reset spring is arranged in the ejector rod, the ejector rod is rotated into the connecting shell, and the assembly of the elastic adjusting mechanism is completed
The displacement detector is arranged in the installation shell, and the ejector pin is nailed at the bottom of the ejector rod;
and fixing the displacement detector by bolts to complete the assembly of the displacement detection mechanism.
The detection working principle of the device is as follows:
after the device is assembled, the reset spring is in a compressed state and pushes against the ejector rod; the ejector rod is axially adjusted in the adjusting groove, and the adjusting range is limited by the reset spring and the adjusting groove; the ejector rod always presses the bearing under the action of the elastic force of the return spring, so that the worm and the worm wheel are tightly attached. And a moment is applied to the connecting shell, namely, the connecting shell rotates, the ejector rod sends displacement in the adjusting groove, the displacement change of the ejector rod is transmitted to the ejector pin, the displacement detector detects the displacement change quantity, the displacement change quantity represents the gap value of the worm gear, and the displacement detector detects the gap value of the worm gear in real time.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Although terms such as worm, bearing, bushing, connection housing, ejector pin, adjustment groove, etc. are used more herein, the possibility of using other terms is not precluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (8)
1. The utility model provides a worm gear clearance adjustment detection device, includes the worm of setting in the worm wheel casing, its characterized in that: an elastic adjusting mechanism is rotatably connected to the worm gear shell and is arranged on a bearing at one end of the worm in a top mode, and a displacement detecting mechanism for detecting displacement of the elastic adjusting mechanism is arranged on the elastic adjusting mechanism.
2. The worm gear gap adjustment detection device according to claim 1, wherein the elastic adjustment mechanism comprises a connection shell and a push rod, an adjustment groove is formed in the connection shell, the push rod is limited in the adjustment groove, a spring groove is formed in the bottom of the push rod, and a return spring is arranged in the spring groove.
3. The device for detecting gap adjustment of worm and gear according to claim 2, wherein the ejector rod comprises a sliding part and a plug arranged on the sliding part, a retainer ring is arranged on the opening of the adjusting groove, the sliding part is movably arranged in the adjusting groove and blocked by the retainer ring, and the plug penetrates out of the retainer ring.
4. The worm gear clearance adjustment detection device according to claim 3, wherein a circle of concave edges are arranged on the outer wall of the sliding part.
5. The device for detecting gap adjustment between worm and gear according to claim 2, wherein the outer surface of the connection housing comprises a rear end portion and a front end portion which are in stepped retraction, an external thread is arranged on the rear end portion, a mounting hole matched with the shape of the connection housing is formed in the worm housing, the mounting hole comprises an external ring surface and an internal ring surface which are in stepped retraction, and an internal thread is arranged on the external ring surface.
6. The device for adjusting and detecting the gap between the worm and the gear according to claim 5, wherein a circle of sealing groove is formed in the outer wall of the front end part, and a sealing ring is embedded in the sealing groove.
7. The device for detecting the gap adjustment of the worm gear according to claim 2, wherein the displacement detecting mechanism comprises a mounting housing and a displacement detector, the mounting housing is arranged on the connecting housing, an insertion hole is formed in the mounting housing and is communicated with the adjusting groove, the displacement detector is fixed in the insertion hole, and a thimble of the displacement detector is propped against the ejector rod.
8. The device for adjusting and detecting the gap between the worm and the gear according to claim 7, wherein a plurality of fixing holes are formed in the outer wall of the installation shell, the fixing holes are communicated with the insertion holes, bolts are connected in the fixing holes in a threaded mode, and the front ends of the bolts are propped against the displacement detector to fix the displacement detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320303759.1U CN219757285U (en) | 2023-02-21 | 2023-02-21 | Worm gear clearance adjustment detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320303759.1U CN219757285U (en) | 2023-02-21 | 2023-02-21 | Worm gear clearance adjustment detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219757285U true CN219757285U (en) | 2023-09-26 |
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ID=88074087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320303759.1U Active CN219757285U (en) | 2023-02-21 | 2023-02-21 | Worm gear clearance adjustment detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219757285U (en) |
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2023
- 2023-02-21 CN CN202320303759.1U patent/CN219757285U/en active Active
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