CN210533901U

CN210533901U - Bolt torque measuring instrument

Info

Publication number: CN210533901U
Application number: CN201921232309.8U
Authority: CN
Inventors: 顾燕菁; 蒋建国; 郭建虎; 汪佳琪; 詹嘉纬
Original assignee: Hangzhou Guohua Testing Technology Co Ltd
Current assignee: Hangzhou Guohua Testing Technology Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-05-15
Anticipated expiration: 2029-07-31

Abstract

The utility model relates to a bolt torque measuring instrument, which comprises a support, wherein the support is provided with a chute, an opening at the side surface of the chute is positioned at the side wall of one end of the support, a slide block is connected in the slide groove in a sliding way, one end of the slide block is provided with a convex clamping groove, the opening of the side of spout is provided with the baffle, be provided with the mounting groove on the direction of height of baffle, the opening of mounting groove is located the top surface of baffle, the mounting groove is including being arranged in the spacing groove of mounting groove upper end and being located the constant head tank of mounting groove bottom, the constant head tank runs through baffle thickness direction, the bottom surface of constant head tank and the bottom surface of double-layered groove correspond and be located same horizontal plane, the mounting groove includes cylindric spacing groove, spacing groove one end is located the top surface of baffle, the spacing groove other end and constant head tank intercommunication, spacing bolt includes stop screw and connects the spacing spiral shell head in stop. The utility model discloses have the effect of the bolt of being surveyed of convenient fixing.

Description

Bolt torque measuring instrument

Technical Field

The utility model belongs to the technical field of the technique of bolt strength check out test set and specifically relates to a bolt torque measuring instrument is related to.

Background

At present, bolts are often used for connecting bridges, steel rails, high-pressure equipment and ultrahigh-pressure equipment. In order to ensure the safety of the engineering after construction, the torque of the bolt needs to be detected.

For example, chinese patent with publication number CN207662556U discloses a bolt axial force and torque composite intelligent detector, which includes a clamping mechanism mounted on a frame and used for limiting the position of a bolt to be tested; the axial force sensor is matched with the screw head of the bolt to be tested through the pull head and is used for testing the axial force of the bolt to be tested; the transmission part is detachably matched with the screw rod of the bolt to be tested; the power source is assembled with the transmission part and drives the bolt to be tested to rotate through the transmission part; the torque sensor is matched with the transmission part and used for testing the torque of the bolt to be tested; and the operation display instrument is electrically connected with the axial force sensor and the torque sensor. The transmission part is arranged into a rigid frame, and the pull head is connected in the rigid frame in a sliding mode. One end of the rigid frame is detachably connected with a baffle, and the middle part of the baffle is provided with a through hole.

Each time the bolt to be tested is installed in the fixture, the baffle needs to be separated from the rigid frame, then the bolt to be tested is inserted into the fixture, and then the baffle is installed on the rigid frame again. The intensity of bolt to be measured at every turn all need lift the baffle off, corresponds the through-hole of baffle and bolt to be measured and installs the baffle again, and it is inconvenient to fix the bolt to be measured.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a bolt torque measuring instrument, its advantage lies in its convenient fixed bolt of being surveyed, need not to be surveyed in the through-hole that the bolt inserted the baffle.

The technical purpose of the utility model is realized through following technical scheme: a bolt torque measuring instrument comprises a support, wherein a sliding groove is formed in the support, an opening in the side face of the sliding groove is located on the side wall of one end of the support, a sliding block is connected in the sliding groove in a sliding mode, a convex clamping groove is formed in one end of the sliding block, a connecting rod is arranged at the end, far away from the clamping groove, of the sliding block, the other end of the connecting rod penetrates through the side wall of the support and is in threaded connection with a fixing cylinder, a tension sensor is sleeved between the fixing cylinder and the side wall of the support and is connected with a display, the display is connected with a torque sensor through a lead, a baffle is arranged in the opening in the side face of the sliding groove, a mounting groove is formed in the height direction of the baffle, the opening in the mounting groove is located on the top face of the baffle and comprises a limiting groove located at the, the mounting groove includes cylindric spacing groove, and spacing groove one end is located the top surface of baffle, and the spacing groove other end and constant head tank intercommunication, spacing bolt include stop screw and connect the spacing spiral shell head in stop screw one end.

Through adopting above-mentioned technical scheme, will be surveyed the bolt and put in double-layered groove and constant head tank, in then precessing the spacing groove with spacing bolt, but not contact with the bottom of spacing bolt in the screw rod top of being surveyed the bolt, rotate the nut to being surveyed on the tail end of screw rod, then use torque sensor to rotate the nut, be surveyed the screw rod and drive the slider removal and the butt to the baffle on the surface, continue to rotate torque sensor this moment, show the biggest torque value until the display. Through constant head tank, spacing groove and spacing bolt, only need will be surveyed the bolt and put the constant head tank in, will be surveyed the screw rod through spacing bolt after that at vertical direction spacing, when preventing to rotate the nut, surveyed the screw rod and upwards slided in the spacing groove, guaranteed force sensor's the degree of accuracy when measuring the moment of torsion to do not need the dismouting baffle, will be surveyed the bolt and insert in the through-hole of baffle, conveniently fix and surveyed the bolt.

The utility model discloses further set up to: the inner wall of the upper end of the limiting groove is a sliding surface, and the inner wall of the lower end of the limiting groove is a thread.

Through adopting above-mentioned technical scheme, put spacing bolt in the spacing groove, limiting screw only need through with the threaded connection of spacing groove lower extreme, and limiting screw just can fix in the spacing groove to be surveyed the bolt spacing in the constant head tank, reduced the time of precessing spacing bolt in the spacing groove, accelerated the time of fixed bolt of being surveyed.

The utility model discloses further set up to: both ends of the baffle in the length direction are provided with a convex block, and the side wall of one end, corresponding to the baffle, of the support is provided with a fixing groove.

Through adopting above-mentioned technical scheme, when the nut on the rotating bolt, can take place relative rotation with the baffle of nut butt, and when the lug joint of baffle was in the fixed slot of support, the baffle can be by spacing on the support to make surveyed the bolt can not take place the displacement because of the baffle removes, make measuring result more accurate.

The utility model discloses further set up to: the limiting screw head is connected with a steel chain, and the other end of the steel chain is connected with the baffle

Through adopting above-mentioned technical scheme, after being surveyed the bolt and detecting, with spacing bolt follow spacing groove and revolve out in order to be ready for next use, because the steel chain is connected spacing bolt and baffle to prevent that spacing bolt from placing at will after the end of using and leading to losing.

The utility model discloses further set up to: the support is provided with an accommodating sleeve.

Through adopting above-mentioned technical scheme, after being surveyed the bolt and detecting, place spacing bolt and accomodate the sleeve in, conveniently deposit and take spacing bolt.

The utility model discloses further set up to: the baffle is characterized in that scale marks are arranged on the outer wall of the baffle and are parallel to the limiting groove, and the scale marks start from the bottom end of the positioning groove.

Through adopting above-mentioned technical scheme, when precessing spacing bolt spacing groove, the bottom surface of spacing bolt is located the top of being surveyed the screw rod but contactless, observes the scale mark that the bottom surface of spacing bolt corresponds this moment to know the diameter of being surveyed the bolt.

The utility model discloses further set up to: the lug is connected with the support through a bolt.

By adopting the technical scheme, the baffle can be fixed on the support, and the baffle does not need to be manually placed in the fixing groove during each detection; when the baffle is used for a long time, the positioning groove and the connecting groove are damaged, the baffle is detached, and a new baffle is replaced.

The utility model discloses further set up to: and a rotating rod is inserted into the side wall of the limiting screw head.

Through adopting above-mentioned technical scheme, when not having the spanner, insert into spacing spiral shell head with the bull stick, rotate the bull stick with spacing bolt precession spacing groove or from the spacing inslot back-out.

To sum up, the utility model discloses following beneficial effect has:

1. through the positioning groove, the limiting groove and the limiting bolt, only the tested bolt is required to be placed in the positioning groove, then the tested screw is limited in the vertical direction through the limiting bolt, when the nut is prevented from rotating, the tested screw slides upwards in the limiting groove, the accuracy of the tension sensor in measuring torque is guaranteed, the baffle is not required to be disassembled and assembled, and then the tested bolt is inserted into the through hole of the baffle, so that the tested bolt is convenient to fix;

2. after the detection of the tested bolt is finished, the limiting bolt is screwed out of the limiting groove for the next use, and the limiting bolt is connected with the baffle plate through the steel chain, so that the limiting bolt is prevented from being lost due to random placement after the use is finished;

3. place the spacing bolt and accomodate the sleeve in, conveniently deposit and take the spacing bolt.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic sectional view of the present invention.

Reference numerals: 1. a support; 2. a clamp; 3. a tension sensor; 4. a tested bolt; 5. a torque sensor; 6. a storage sleeve; 7. a base plate; 8. a long plate; 9. a short plate; 10. a baffle plate; 11. a chute; 12. a limiting groove; 13. a slider; 14. a wire; 15. a limit screw; 16. a clamping groove; 17. a first fastening groove; 18. a second fastening groove; 19. a connecting rod; 20. a fixed cylinder; 21. a display; 22. positioning a groove; 23. a steel chain; 24. a limiting screw head; 25. scale lines; 26. a limit bolt; 27. a high manganese steel rod; 28. a rotating rod; 29. a nut; 30. a bump; 31. fixing grooves; 32. a measured screw head; 33. a screw to be tested; 34. a slot; 35. and (4) mounting the groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a bolt torque measuring instrument, including support 1, sliding connection has anchor clamps 2 on support 1, and 2 one end of anchor clamps are connected with the force sensor 3 of fixing at the 1 one end outer wall of support, and the other end is connected with surveyed bolt 4, and surveyed bolt 4 is connected with torque sensor 5, and force sensor 3 and torque sensor 5 pass through wire 14 and connect in display 21.

Referring to fig. 1 and 2, the support 1 comprises a bottom plate 7, two opposite long plates 8 are fixed on the bottom plate 7, the same ends of the two long plates 8 are welded with short plates 9, and the other ends of the two long plates 8 are fixed with a baffle plate 10. Both ends of the baffle plate 10 in the horizontal direction are fixed with a convex block 30, one ends of the two long plates 8 far away from the short plate 9 are provided with fixing grooves 31, the fixing grooves 31 are located in the middle of the side walls of the long plates 8, and the convex block 30 is connected with the long plates 8 through bolts. The long plate 8, the short plate 9 and the bottom plate 7 form a chute 11 therebetween. A spacing groove 12 has all been seted up to two relative long slab 8's inner wall, and spacing groove 12 establishes to the dovetail, and spacing groove 12 distributes along support 1 length direction.

A sliding block 13 is connected in the sliding groove 11 in a sliding manner, and two side faces of the sliding block 13 corresponding to the long plate 8 are fixed with a limiting block (not shown in the figure) corresponding to the limiting groove 12, and the limiting block is connected in the limiting groove 12 in a sliding manner. When the sliding block 13 slides in the sliding groove 11, the limiting groove 12 firmly limits the sliding block 13 in the sliding groove 11. When the sliding block 13 is positioned in the sliding groove 11, a convex-shaped clamping groove 16 is formed at one end of the sliding block 13 close to the baffle 10, an opening at the upper end of the clamping groove 16 is positioned on the top surface of the sliding block 13, and an opening at the side surface of the clamping groove 16 is positioned on the side wall of one end of the sliding block 13 close to the baffle 10. The clip groove 16 includes a first fastening groove 17 near one end of the barrier 10 and a second fastening groove 18 far from one side of the barrier 10, and the first fastening groove 17 has a smaller depth and width than the second fastening groove 18.

One end of the sliding block 13, which is far away from the clamping groove 16, is fixedly connected with a connecting rod 19, and the other end of the connecting rod 19 penetrates through the short plate 9 and is sleeved with a fixed cylinder 20. A threaded hole (not shown) is formed in the fixed cylinder 20, a corresponding thread is formed on the connecting rod 19, and the connecting rod 19 is connected in the threaded hole. The connecting rod 19 between the fixed cylinder 20 and the short plate 9 is sleeved with the tension sensor 3.

Referring to fig. 1 and 2, the baffle plate 10 is provided with a mounting groove 35 in the height direction, and an opening of the mounting groove 35 is located on the top surface of the baffle plate 10. The mounting groove 35 includes a position-limiting groove 12 at the upper end of the mounting groove 35 and a positioning groove 22 at the bottom end of the mounting groove 35. The positioning slot 22 penetrates through the thickness direction of the baffle 10, and the bottom surface of the positioning slot 22 corresponds to the bottom surface of the clamping slot 16 and is positioned on the same horizontal plane. When the tested bolt 4 is placed at the bottom end of the first fastening groove 17 and the positioning groove 22, the tested bolt 4 is stably fixed on the bottom surfaces of the first fastening groove 17 and the positioning groove 22. One end of the limiting groove 12 is positioned on the top surface of the baffle 10, and the other end of the limiting groove 12 is communicated with the positioning groove 22. The inner wall of the upper end of the limiting groove 12 is a sliding surface, and the inner wall of the lower end is provided with threads.

The outer wall of the baffle 10 is fixed with scale lines 25 in the height direction, and the scale lines 25 start from the bottom end of the positioning groove 22. The limiting bolt 26 is screwed into the limiting groove 12, the bottom surface of the limiting bolt 26 is positioned above the top surface of the tested screw 33 but is not contacted, and the scale mark 25 corresponding to the bottom surface of the limiting bolt 26 is observed at the moment, so that the diameter of the tested bolt 4 is known.

Referring to fig. 2, a limit bolt 26 is installed in the limit groove 12, and the limit bolt 26 includes a limit screw 15 and a limit screw head 24 connected to an end surface of one end of the limit screw 15. The bottom end of the limit bolt 26 is provided with a high manganese steel rod 27, the wear resistance of the high manganese steel is high, and the wear resistance of the limit bolt 26 is improved. The side wall of the limiting screw head 24 is provided with a slot 34, the rotating rod 28 is inserted into the slot 34, and when no wrench is used, the rotating rod 28 is rotated to screw the limiting bolt 26 into the limiting groove 12 or screw out of the limiting groove 12. A steel chain 23 is fixed on the top surface of the limit screw head 24, and the other end of the steel chain 23 is connected to the top surface of the baffle 10. One end of the long plate 8, which is close to the baffle 10, is welded with a containing sleeve 6, and the sleeve is positioned on the vertical direction of the top end of the outer wall of the long plate 8. After the test is finished, the limit bolt 26 is removed from the limit groove 12 and placed in the receiving sleeve 6 for the next use.

The implementation principle of the embodiment is as follows: firstly, the tested bolt 4 is placed into the clamping groove 16 from the vertical direction, at the moment, the tested bolt head 32 is located in the second fastening groove 18, the tested screw 33 is located at the bottom end of the first fastening groove 17 and the bottom end of the positioning groove 22, then the limiting bolt 26 is screwed into the limiting groove 12 by using the rotating rod 28, the bottom end of the limiting bolt 26 is located above the tested screw 33 but is not in contact with the tested screw 33, the nut 29 is then rotated to the tail end of the tested screw 33, then the nut 29 is rotated by using the torque sensor 5, the tested screw 33 is driven by the nut 29 to move away from the short plate 9, the tested bolt 4 drives the sliding block 13 to move and abut against the surface of the baffle plate 10, and at the moment, the torque sensor 5 is continuously rotated until the display 21 displays the maximum torque value.

After the test is finished, the limit bolt 26 is removed from the limit groove 12 and placed in the receiving sleeve 6 for the next use.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a bolt torquemeter, includes support (1), be provided with spout (11) on support (1), the opening of spout (11) side is located support (1) one end lateral wall, sliding connection has slider (13) in spout (11), the double-layered groove (16) of "protruding" shape are seted up to slider (13) one end, and slider (13) are kept away from double-layered groove (16) one end and are provided with connecting rod (19), and connecting rod (19) other end passes support (1) lateral wall and threaded connection has a solid fixed cylinder (20), has cup jointed a force sensor (3) between the lateral wall of solid fixed cylinder (20) and support (1), and force sensor (3) are connected with a display (21), and display (21) are connected with a torque sensor (5) through wire (14), characterized by: the opening of the side of spout (11) is provided with baffle (10), be provided with mounting groove (35) on the direction of height of baffle (10), the opening of mounting groove (35) is located the top surface of baffle (10), mounting groove (35) are including spacing groove (12) that are arranged in mounting groove (35) upper end and constant head tank (22) that are arranged in mounting groove (35) bottom, constant head tank (22) run through baffle (10) thickness direction, the bottom surface of constant head tank (22) and the bottom surface of pressing from both sides groove (16) correspond and are located same horizontal plane, mounting groove (35) include cylindric spacing groove (12), the top surface of spacing groove (12) one end in baffle (10), spacing groove (12) other end and constant head tank (22) intercommunication, spacing bolt (26) include stop screw (15) and connect spacing spiral shell head (24) in stop screw (15) one end.

2. A bolt torquemeter according to claim 1, wherein: the inner wall of the upper end of the limiting groove (12) is a sliding surface, and the inner wall of the lower end is a thread.

3. A bolt torquemeter according to claim 2, wherein: both ends of baffle (10) length direction all are equipped with a lug (30), all are provided with a fixed slot (31) on the lateral wall of support (1) and the one end that baffle (10) correspond.

4. A bolt torquemeter according to claim 3, wherein: the limiting screw head (24) is connected with a steel chain (23), and the other end of the steel chain (23) is connected to the baffle (10).

5. The bolt torquemeter of claim 4, wherein: the support (1) is provided with an accommodating sleeve (6).

6. A bolt torquemeter according to claim 1, wherein: the outer wall of the baffle (10) is provided with scale marks (25), the scale marks (25) are parallel to the limiting groove (12), and the scale marks (25) start from the bottom end of the positioning groove (22).

7. A bolt torquemeter according to claim 3, wherein: the lug (30) is connected with the support (1) through a bolt.

8. A bolt torquemeter according to claim 1, wherein: and a rotating rod (28) is inserted into the side wall of the limiting screw head (24).