CN215893873U - Take shield to be convenient for wearing axle type tension sensor of bearing dismantlement - Google Patents

Abstract

The utility model belongs to the technical field of tension sensors, and particularly relates to a through shaft type tension sensor with a dustproof cover and a bearing convenient to disassemble, which comprises a sensor body, a bearing, two mounting end covers and a dustproof end cover; the sensor body is provided with an installation cavity, a bearing installation ring is arranged in the installation cavity in a hanging mode, and the outer wall of the bearing installation ring is connected with the inner wall of the installation cavity through a strain elastomer; the center of the bearing mounting ring is provided with a bearing mounting hole, the bearing is mounted in the bearing mounting hole in a matching way, and the inner walls of two ends of the bearing mounting hole can be respectively provided with a bearing limiting piece in a detachable way; two installation end covers are respectively installed at two ends of the installation cavity in an adaptive mode, the centers of the two installation end covers are all penetrated through a large hole with the diameter larger than or equal to the outer diameter of the bearing, the large hole of at least one installation end cover is detachably covered with a dustproof end cover, the dustproof end cover is penetrated through an installation shaft clearance hole, during installation, the dustproof end cover only needs to be detached, the bearing limiting part and the bearing can be taken down, the installation is convenient, and the bearing disassembly and assembly time is saved.

Description

Take shield to be convenient for wearing axle type tension sensor of bearing dismantlement

Technical Field

The utility model belongs to the technical field of tension sensors, and particularly relates to a shaft penetrating type tension sensor with a dustproof cover and a bearing convenient to disassemble.

Background

The current wear axle type tension sensor is in the same place shield and both sides end cover design, there is not independent shield, two end covers all need littleer than the external diameter of bearing for dustproof hole design, the macropore design that jump ring and bearing were dismantled not convenient for, in many applications, the customer need install the bearing in epaxial, need open the left and right sides end cover earlier, jump ring and bearing take out, with the bearing dress after fixing a position on the axle center of tension roller, again with the bearing dress sensor bearing mounting hole, then adorn the jump ring, at last lock sensor both sides end cover again. The inconvenience of installation caused by the mode is very large, the time for dismounting and mounting the bearing is wasted, and due to the fact that an installer of an equipment manufacturer does not adopt a professional sensor mounting technician, the sensor is easily damaged due to dismounting, or the detection precision of the sensor is reduced due to poor assembly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a shaft penetrating type tension sensor with a dustproof cover and facilitating bearing disassembly, and aims to solve the technical problems that the shaft penetrating type tension sensor is inconvenient to install and wastes bearing disassembly and assembly time in the prior art.

In order to achieve the above object, the through-shaft type tension sensor with the dust cover and facilitating bearing detachment provided by the embodiment of the utility model comprises a sensor body, a bearing, two mounting end covers and a dust cover; the sensor body is provided with an installation cavity penetrating through two ends of the sensor body, a bearing installation ring is arranged in the center of the installation cavity in a hanging mode, the outer wall of the bearing installation ring is connected with the inner wall of the installation cavity through a strain elastic body, and the strain elastic body is provided with a strain gauge; the center of the bearing mounting ring is provided with a bearing mounting hole, the bearing is mounted in the bearing mounting hole in a matching way, and bearing limiting parts can be detachably arranged on the inner walls of the two ends of the bearing mounting hole; the two installation end covers are respectively installed at two ends of the installation cavity in an adaptive mode, the two installation end covers penetrate through centers of the installation end covers and are provided with large holes, the diameter of each large hole is larger than or equal to the outer diameter of the corresponding bearing, at least one large hole of each installation end cover is detachably covered with one dustproof end cover, and the dustproof end covers penetrate through installation shaft clearance holes which are coaxially arranged with inner holes of the bearings.

Optionally, the installation end cover is provided with a plurality of first threaded holes around the large hole, a plurality of first connecting holes corresponding to the first threaded holes one to one are evenly distributed on the edge of the dustproof end cover, each first connecting hole is provided with a first screw in a penetrating manner, and the screw rod of each first screw is in threaded connection with the corresponding first threaded hole.

Optionally, a gasket is disposed between the mounting end cap and the dust-proof end cap.

Optionally, the inner walls of the two ends of the bearing mounting hole are respectively provided with an annular snap spring mounting groove, the bearing limiting part is a snap spring, and the two snap springs are respectively adapted to be clamped in the two annular snap spring mounting grooves; and the two clamp springs are respectively abutted against the two ends of the bearing and used for limiting the axial movement of the bearing along the bearing mounting hole.

Optionally, the outer walls of the left side and the right side of the bearing mounting ring are connected with the inner wall of the mounting cavity through the strain elastic body.

Optionally, the upper and lower both sides of installation cavity are equipped with respectively the level and overload the spacer pin under with, go up overload the spacer pin with overload the spacer pin down all with the inner wall of installation cavity with the outer wall butt of bearing collar.

Optionally, an upper overload limit pin mounting groove is formed between the upper inner wall of the mounting cavity and the upper outer wall of the bearing mounting ring, and the upper overload limit pin is adapted to be inserted into the upper overload limit pin mounting groove; and a lower overload limiting pin mounting groove is formed between the inner wall of the lower side of the mounting cavity and the outer wall of the lower side of the bearing mounting ring, and the lower overload limiting pin is adaptive to be inserted into the lower overload limiting pin mounting groove.

Optionally, the two mounting end covers are respectively accommodated at two ends of the mounting cavity in a matched manner, and the two mounting end covers are respectively abutted against two ends of the bearing mounting ring; one of the mounting end covers is provided with two second connecting holes in a penetrating manner, and the other mounting end cover is provided with two second threaded holes in a penetrating manner, wherein the two second threaded holes correspond to the two second connecting holes one to one; and a second screw penetrates through each second connecting hole, and a screw rod of each second screw is in threaded connection with the corresponding second threaded hole.

Optionally, the annular inner wall of installation cavity is equipped with a plurality of stoppers, and is a plurality of the both ends of stopper all in the both ends parallel and level of bearing collar, two the edge of installation end cover respectively with the both ends butt of bearing collar.

Optionally, the side wall of the sensor body is provided with at least one cable through hole communicated with the installation cavity.

Compared with the prior art, one or more technical schemes of the shaft penetrating type tension sensor with the dustproof cover and the bearing convenient to disassemble provided by the embodiment of the utility model at least have one of the following technical effects:

1. during installation, the bearing limiting part and the bearing can be taken down only by disassembling the dustproof end cover without disassembling two installation end covers on the left side and the right side of the sensor body, so that the installation is convenient, and the bearing disassembly and assembly time is saved. Meanwhile, the dustproof end cover has a good dustproof effect, dust or dust in the environment is effectively prevented from entering the bearing, and smooth operation of the bearing is guaranteed.

2. The two ends of the installation cavity are respectively covered by the two installation end covers, and the two installation end covers do not need to be disassembled during installation, so that the strain elastomer, the strain gauge and the circuit component in the installation cavity cannot be exposed, the effect of protecting the strain elastomer, the strain gauge and the circuit component is achieved, and the strain elastomer, the strain gauge and the circuit component are prevented from being damaged during disassembly and assembly, and the detection precision of the tension sensor is reduced.

3. Because the upper and lower both sides of installation cavity are the level respectively and are equipped with and overload the spacer pin under and, it all with the inner wall of installation cavity and the outer wall butt of bearing collar to overload the spacer pin under and, consequently, when bearing collar received too big top pressure or holding down force, it can support the upside and the downside of bearing collar respectively to overload the spacer pin under and, the bearing capacity who has risen the bearing collar by a wide margin, can reach 10 times overload at most, reduced the damage that tension sensor caused to bearing collar, strain elastomer and strainometer because of overloading by a wide margin, make tension sensor be difficult for damaging because of overloading, tension sensor's life has been improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is an exploded schematic view of a through-shaft type tension sensor with a dust cap for facilitating bearing detachment provided by the utility model.

Fig. 2 is a right side view of the shaft penetrating type tension sensor with the dust cap for facilitating the detachment of the bearing provided by the utility model.

Fig. 3 is a cross-sectional view taken along line a-a of fig. 2 in accordance with the present invention.

Fig. 4 is an application schematic diagram of the through-shaft type tension sensor with the dust cap for facilitating the detachment of the bearing provided by the utility model.

Wherein, in the figures, the respective reference numerals:

the sensor comprises a sensor body 100, an installation cavity 101, a limiting block 102, a cable through hole 103, a bearing installation ring 110, a bearing installation hole 111, a clamp spring installation groove 112, a strain elastic body 120, a bearing limiting piece 130, an upper overload limiting pin 140, an upper overload limiting pin installation groove 141, a lower overload limiting pin 150 and a lower overload limiting pin installation groove 151;

a bearing 200;

the mounting end cap 300, the large hole 310, the first threaded hole 320, the second connecting hole 330, the second threaded hole 340 and the second screw 350;

the dustproof end cover 400, a mounting shaft clearance hole 410, a first connecting hole 420, a first screw 430 and a gasket 440;

a shaft 500 is mounted.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the utility model.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In one embodiment of the present invention, referring to fig. 1 and 2, a through-shaft type tension sensor with a dust cap for facilitating bearing detachment is provided, which includes a sensor body 100, a bearing 200, two mounting end caps 300 and a dust cap 400.

Referring to fig. 1 and 3, the sensor body 100 is provided with a mounting cavity 101 penetrating through two ends of the sensor body, a bearing mounting ring 110 is suspended in the center of the mounting cavity 101, the outer wall of the bearing mounting ring 110 is connected with the inner wall of the mounting cavity 101 through a strain elastic body 120, and a strain gauge (not shown) is arranged on the strain elastic body 120. The bearing mounting ring 110 is stressed to drive the strain elastic body 120 to deform slightly, the strain gauge measures the material micro-deformation of the strain elastic body 120, and then the strain gauge outputs a voltage signal proportional to the deformation of the strain elastic body 120. In the present embodiment, the strain gauge is attached to the strain elastic body 120, and the amount of slight deformation of the material of the strain elastic body 120 can be measured more accurately.

The strain gauge is a sensor that converts mechanical strain (a small change in size, strain) into an electrical signal and outputs the signal. The strain can be measured by sticking it to a material or to the surface of a structure. The sensor is widely applied to sensing elements of sensors of force, pressure, acceleration, vibration, displacement, torque and the like, and is used for measurement and control of production lines and the like.

Referring to fig. 1 and 4, the bearing mounting ring 110 has a bearing mounting hole 111 at the center, the bearing 200 is fittingly mounted in the bearing mounting hole 111, and bearing stoppers 130 are detachably disposed on inner walls of both ends of the bearing mounting hole 111. The bearing 200 is limited by the two bearing limiting members 130, and the bearing 200 is prevented from moving axially along the bearing mounting hole 111.

Referring to fig. 1 and 4, the two mounting end caps 300 are respectively adapted to and mounted at two ends of the mounting cavity 101, a large hole 310 having a diameter greater than or equal to the outer diameter of the bearing 200 penetrates through the centers of the two mounting end caps 300, and the large hole 310 and the bearing mounting hole 111 are coaxially disposed, so that the bearing 200 and the bearing limiting member 130 can be mounted in the bearing mounting hole 111 through the large hole 310. It will be appreciated that the bore size of the large bore 310 is smaller than the outer diameter of the bearing mounting ring 110 so that the mounting end cap 300 covers the mounting cavity 101 and protects the strain gage from exposure.

Referring to fig. 1 and 4, at least one of the large holes 310 of the mounting end cap 300 is detachably covered with one of the dust-proof end caps 400, the dust-proof end cap 400 is provided with a mounting shaft clearance hole 410 coaxially disposed with the inner hole of the bearing 200 in a penetrating manner, and the mounting shaft 500 can penetrate through the mounting shaft clearance hole 410 and be adapted to be inserted into the inner hole of the bearing 200. It will be appreciated that the dust cap 400 can cover the rolling element portion of the bearing 200.

The shaft penetrating type tension sensor with the dustproof cover and the bearing convenient to disassemble provided by the embodiment of the utility model has one of the following technical effects:

1. during installation, the bearing limiting part 130 and the bearing 200 can be taken down only by disassembling the dustproof end cover 400 without disassembling the two installation end covers 300 on the left side and the right side of the sensor body 100, so that the installation is convenient, and the disassembly and assembly time of the bearing 200 is saved. Meanwhile, the dustproof end cover 400 has a good dustproof effect, dust or dust in the environment is effectively prevented from entering the bearing 200, and smooth operation of the bearing 200 is guaranteed.

2. The two mounting end covers 300 respectively cover two ends of the mounting cavity 101, and the two mounting end covers 300 do not need to be detached during mounting, so that the strain elastic body 120, the strain gauge (not shown) and the circuit component (not shown) in the mounting cavity 101 cannot be exposed, the strain elastic body 120, the strain gauge and the circuit component are protected, and the strain elastic body 120, the strain gauge and the circuit component are prevented from being damaged during dismounting, and the detection precision of the tension sensor is prevented from being reduced.

In another embodiment of the present invention, referring to fig. 1 and 3, a plurality of first threaded holes 320 are annularly and uniformly distributed around the large hole 310 of the mounting end cap 300, a plurality of first connection holes 420 corresponding to the plurality of first threaded holes 320 are annularly and uniformly distributed on an edge of the dust-proof end cap 400, a first screw 430 is inserted into each first connection hole 420, and a screw of each first screw 430 is in threaded connection with the corresponding first threaded hole 320. The nut of the first screw 430 is larger than the first connection hole 420, and the dust-proof end cover 400 is detachably and fixedly connected to the installation end cover 300 through the first screw 430, so that the assembly and disassembly are convenient, and the connection is stable.

Further, referring to fig. 1 and 3, a gasket 440 is disposed between the mounting end cap 300 and the dust-proof end cap 400, and the gasket 440 improves the sealing property between the mounting end cap 300 and the dust-proof end cap 400, and prevents dust or dirt in the environment from entering the bearing mounting hole 111 from a gap between the mounting end cap 300 and the dust-proof end cap 400. Meanwhile, pretightening force is provided, and the connection between the installation end cover 300 and the dustproof end cover 400 is more stable.

In another embodiment of the present invention, referring to fig. 1 and 3, the inner walls of the two ends of the bearing mounting hole 111 are both provided with an annular snap spring mounting groove 112, the bearing limiting member 130 is a snap spring, and the two snap springs are respectively adapted to be clamped in the two annular snap spring mounting grooves 112. The two clamp springs are respectively abutted against two ends of the bearing 200 and used for limiting the bearing 200 to axially move along the bearing mounting hole 111, so that the bearing 200 can only rotate in the bearing mounting hole 111. The diameters of the inner ring holes of the two clamp springs are smaller than the outer diameter of the bearing 200 and larger than the inner diameter of the bearing 200, so that the clamp springs can limit the bearing 200.

In another embodiment of the present invention, referring to fig. 1 and 3, the outer walls of the left and right sides of the bearing mounting ring 110 are connected to the inner wall of the mounting cavity 101 through the strain elastic body 120, so that the bearing mounting ring 110 is mounted in the mounting cavity 101 in a balanced manner. Meanwhile, strain gauges are attached to both the strain elastic bodies 120, the two strain gauges are used for measuring the material micro-deformation of the two strain elastic bodies 120 respectively, and voltage signals proportional to the deformation of the strain elastic bodies 120 are output simultaneously through the two strain gauges, so that the measurement precision is high.

In another embodiment of the present invention, referring to fig. 1 and 3, an upper overload limiting pin 140 and a lower overload limiting pin 150 are horizontally disposed on upper and lower sides of the mounting cavity 101, the upper overload limiting pin 140 and the lower overload limiting pin 150 are respectively located on upper and lower sides of the bearing mounting ring 110, and both the upper overload limiting pin 140 and the lower overload limiting pin 150 are abutted against an inner wall of the mounting cavity 101 and an outer wall of the bearing mounting ring 110.

Specifically, referring to fig. 1 and 3, when the bearing mounting ring 110 is subjected to an excessive upper pressure or a lower pressure, the upper overload limit pin 140 and the lower overload limit pin 150 can respectively support the upper side and the lower side of the bearing mounting ring 110, so that the bearing capacity of the bearing mounting ring 110 is greatly improved, up to 10 times of overload, damage of the tension sensor to the bearing mounting ring 110, the strain elastic body and the strain gauge due to overload is greatly reduced, the tension sensor is not easily damaged due to overload, and the service life of the tension sensor is prolonged.

Further, referring to fig. 1 and 3, an upper overload limit pin installation groove 141 is formed between the inner wall of the upper side of the installation cavity 101 and the outer wall of the upper side of the bearing installation ring 110, and the upper overload limit pin 140 is adapted to be inserted into the upper overload limit pin installation groove 141, so that the upper overload limit pin 140 is positioned, and the structure is simple and the installation is convenient. The lower overload limiting pin mounting groove 151 is formed between the inner wall of the lower side of the mounting cavity 101 and the outer wall of the lower side of the bearing mounting ring 110, the lower overload limiting pin 150 is adaptive to be inserted into the lower overload limiting pin mounting groove 151, so that the lower overload limiting pin 150 is positioned, the structure is simple, and the mounting is convenient.

In another embodiment of the present invention, referring to fig. 1 and fig. 3, two of the mounting end caps 300 are respectively accommodated at two ends of the mounting cavity 101 in a fitting manner, and the two mounting end caps 300 are respectively abutted against two ends of the bearing mounting ring 110. One of the mounting end caps 300 is provided with two second connecting holes 330 in a penetrating manner, and the other mounting end cap 300 is provided with two second threaded holes 340 in a penetrating manner, wherein the two second threaded holes 340 correspond to the two second connecting holes 330 in a one-to-one manner. A second screw 350 is inserted through each second connecting hole 330, and a screw of each second screw 350 is in threaded connection with the corresponding second threaded hole 340. The nut of the second screw 350 is larger than the second connecting hole 330, and the two mounting end caps 300 can be detachably and fixedly mounted at the two ends of the mounting cavity 101 through the second screw 350, so that the mounting and dismounting are convenient, and the connection is stable. Meanwhile, the strain gauge and the circuit component are convenient to mount in the mounting cavity 101.

Further, referring to fig. 1 and fig. 3, a plurality of limiting blocks 102 are annularly arranged on an inner wall of the installation cavity 101, two ends of the limiting blocks 102 are flush with two ends of the bearing installation ring 110, and edges of the two installation end covers 300 are abutted to two ends of the limiting blocks 102 respectively. The edges of the mounting end caps 300 are supported by the plurality of stoppers 102, and the edges of the large holes 310 of the mounting end caps 300 are supported by the bearing mounting ring 110, so that the two mounting end caps 300 are stably mounted at two ends of the mounting cavity 101.

In another embodiment of the present invention, referring to fig. 1 and 3, the side wall of the sensor body 100 is provided with at least one cable through hole 103 communicating with the mounting cavity 101. The cable can be penetrated into the installation cavity 101 through the cable through hole 103 and electrically connected with the strain gauge, the structure is compact, and the phenomenon of disordered wiring is avoided.

Referring to fig. 1 and 4, in general, the mounting cover 300 at one end of the sensor body 100 is fixedly mounted to the device, and dust or dirt in the environment cannot enter the bearing mounting hole 111 from the large hole 310 of the mounting cover 300 on that side because the large hole 310 of the mounting cover 300 on that side is blocked, so that the large hole 310 of the mounting cover 300 on that side does not need to be provided with the dust cap 400. Since the mounting shaft 500 (roller shaft) is to be mounted in the large hole 310 of the mounting end cap 300 on the other side, in order to be exposed to the outside, the dust-proof end cap 400 is required to be disposed in the large hole 310 of the mounting end cap 300 on the other side, so as to shield dust or dirt in the environment, and the dust or dirt cannot enter the bearing mounting hole 111 from the large hole 310 of the mounting end cap 300 on the other side.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the present invention pertains, the architecture form can be flexible and varied without departing from the concept of the present invention, and a series of products can be derived. But rather a number of simple derivations or substitutions are made which are to be considered as falling within the scope of the utility model as defined by the appended claims.

Claims (10)

1. The shaft penetrating type tension sensor with the dustproof cover and facilitating bearing disassembly is characterized by comprising a sensor body, a bearing, two mounting end covers and the dustproof end cover; the sensor body is provided with an installation cavity penetrating through two ends of the sensor body, a bearing installation ring is arranged in the center of the installation cavity in a hanging mode, the outer wall of the bearing installation ring is connected with the inner wall of the installation cavity through a strain elastic body, and the strain elastic body is provided with a strain gauge; the center of the bearing mounting ring is provided with a bearing mounting hole, the bearing is mounted in the bearing mounting hole in a matching way, and bearing limiting parts can be detachably arranged on the inner walls of the two ends of the bearing mounting hole; the two installation end covers are respectively installed at two ends of the installation cavity in an adaptive mode, the two installation end covers penetrate through centers of the installation end covers and are provided with large holes, the diameter of each large hole is larger than or equal to the outer diameter of the corresponding bearing, at least one large hole of each installation end cover is detachably covered with one dustproof end cover, and the dustproof end covers penetrate through installation shaft clearance holes which are coaxially arranged with inner holes of the bearings.

2. The through-the-shaft type tension sensor with the dust cover for facilitating the disassembly of the bearing according to claim 1, wherein: the installation end cover winds the annular uniform distribution of the large hole is provided with a plurality of first threaded holes, the annular uniform distribution of the edge of the dustproof end cover is provided with a plurality of first connecting holes in one-to-one correspondence with the first threaded holes, each first connecting hole is provided with a first screw in a penetrating mode, and each screw rod of the first screw is in threaded connection with the corresponding first threaded hole.

3. The through-the-shaft type tension sensor with the dust cover for facilitating the detachment of the bearing according to claim 2, wherein: and a gasket is arranged between the mounting end cover and the dustproof end cover.

4. The through-the-shaft type tension sensor with the dust cover for facilitating the disassembly of the bearing according to claim 1, wherein: annular snap spring mounting grooves are formed in the inner walls of the two ends of the bearing mounting hole, the bearing limiting part is a snap spring, and the two snap springs are respectively adaptive to and clamped in the two annular snap spring mounting grooves; and the two clamp springs are respectively abutted against the two ends of the bearing and used for limiting the axial movement of the bearing along the bearing mounting hole.

5. The through-the-shaft type tension sensor with the dust cover for facilitating the disassembly of the bearing according to claim 1, wherein: the outer walls of the left side and the right side of the bearing mounting ring are connected with the inner wall of the mounting cavity through the strain elastic bodies.

6. The shaft-penetrating type tension sensor with the dust cap for facilitating the removal of the bearing according to any one of claims 1 to 5, wherein: the upper and lower both sides of installation cavity are equipped with respectively the level and overload the spacer pin under with, go up overload the spacer pin with overload the spacer pin down all with the inner wall of installation cavity with the outer wall butt of bearing collar.

7. The shaft-penetrating type tension sensor with the dust cap for facilitating the removal of the bearing according to any one of claims 1 to 5, wherein: an upper overload limiting pin mounting groove is formed between the inner wall of the upper side of the mounting cavity and the outer wall of the upper side of the bearing mounting ring, and the upper overload limiting pin is adaptive to be inserted in the upper overload limiting pin mounting groove; and a lower overload limiting pin mounting groove is formed between the inner wall of the lower side of the mounting cavity and the outer wall of the lower side of the bearing mounting ring, and the lower overload limiting pin is adaptive to be inserted into the lower overload limiting pin mounting groove.

8. The shaft-penetrating type tension sensor with the dust cap for facilitating the removal of the bearing according to any one of claims 1 to 5, wherein: the two mounting end covers are respectively accommodated at two ends of the mounting cavity in a matching way, and are respectively abutted against two ends of the bearing mounting ring; one of the mounting end covers is provided with two second connecting holes in a penetrating manner, and the other mounting end cover is provided with two second threaded holes in a penetrating manner, wherein the two second threaded holes correspond to the two second connecting holes one to one; and a second screw penetrates through each second connecting hole, and a screw rod of each second screw is in threaded connection with the corresponding second threaded hole.

9. The through-the-shaft type tension sensor with the dust cover for facilitating the bearing detachment according to claim 8, wherein: the inner wall annular of installation cavity is equipped with a plurality of stoppers, and is a plurality of the both ends of stopper all in the both ends parallel and level of bearing collar, two the edge of installation end cover respectively with the both ends butt of stopper.

10. The shaft-penetrating type tension sensor with the dust cap for facilitating the removal of the bearing according to any one of claims 1 to 5, wherein: the lateral wall of the sensor body is at least provided with a cable perforation communicated with the installation cavity.

Images