CN212052367U - Quick centering device for rubber support - Google Patents

Abstract

The utility model discloses a quick centering device of rubber support, including the loading board that is used for bearing rubber support, still including being used for the centering portion of rubber support centering, it includes that at least two pairs of symmetries set up the equiangular spiral centering structure of loading board top surface border department. The utility model has the advantages of ingenious structure, the automatic correction of the rubber support can be realized by utilizing the geometric characteristics of the spiral slow descending head isocline during the centering, the operation is simple, the manpower is saved, the rapid centering of the rubber support can be realized, the centering time can be shortened within 3 minutes (which is 30 percent of the traditional centering manual centering method), the centering efficiency of the rubber support is greatly improved, and the test time of the rubber support is further shortened; meanwhile, the centering precision of the rubber support can be ensured, so that the coaxiality deviation and indication value deviation of the rubber support in the test are reduced, and the reliability of test data is effectively ensured.

Description

Quick centering device for rubber support

Technical Field

The utility model belongs to the technical field of the bridge construction and specifically relates to a quick centering device of rubber support is related to.

Background

Bridge bearings are important structural components connecting the upper and lower structures of the bridge, and are capable of bearing various forces acting on the upper structure of the bridge and reliably transferring the entirety of the upper structure of the bridge to the abutments, so that the upper structure of the bridge can be freely deformed without generating additional internal forces. Therefore, bridge bearings play an important role in bridge construction.

In bridge construction, the bridge supports which do not meet the requirements cannot be applied to bridge construction, so that the physical and mechanical property test of each bridge support with the design requirements is indispensable work in bridge construction. The centering of the bridge support is a key step for ensuring the reliability of the physical mechanical detection test result, and national and industry related standards have definite regulations on centering, so that the center of the bridge support is required to be aligned with the center of the bearing plate, and the precision is less than 1% of the side length of the bottom plate of the support. However, there is not dedicated centering device in current bridge beam supports centering, place to the less bridge rubber support of volume mostly manually, to the great rubber support of volume mostly utilize simple hoist and mount mechanical equipment and combine artifical visual inspection adjustment, need repeatedly to lift by crane the adjustment many times in order to guarantee that centering precision is in country and industry standard regulation within range when centering, centering link required time accounts for whole physical and mechanical properties experimental more than 50%, the experimental check-out time of rubber support has been prolonged (every rubber support needs 30 minutes at least to accomplish experimental the detection), it is long consuming time, work efficiency is lower. Therefore, how to design a centering device capable of realizing the rapid centering of the bridge rubber bearing is a goal which is constantly pursued by the technical personnel in the field.

Disclosure of Invention

An object of the utility model is to provide a quick centering device of rubber support, easy operation has improved centering efficiency under the condition of guaranteeing the centering precision, and then has shortened rubber support's test time, has improved rubber support's test efficiency.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

quick centering device of rubber support, including the loading board that is used for bearing rubber support, still including being used for the centering portion of rubber support centering, it includes that at least two pairs of symmetries set up the equiangular spiral centering structure of loading board top surface border department.

The equiangular spiral centering structure comprises a fixed seat arranged on the bearing plate, a mounting seat arranged on the fixed seat in a rotating mode and a telescopic sleeve arranged on the mounting seat, wherein the other end of the telescopic sleeve is provided with a spiral descent control head used for finely adjusting the rubber support.

The telescopic sleeve is fixedly connected with the mounting seat into a whole through an elastic piece.

The telescopic sleeve close to the spiral descent control head is provided with universal rubber supporting wheels through hanging hinges.

The telescopic sleeve comprises a guide sleeve which horizontally extends and an adjusting arm which is arranged in the guide sleeve in a penetrating mode and provided with scale marks, and an adjusting portion used for adjusting the extending length of the adjusting arm is arranged at the connecting end of the guide sleeve and the adjusting arm.

The adjusting part comprises an installation shaft arranged on the guide sleeve in a penetrating mode, a fast adjusting gear and a slow adjusting gear arranged on the installation shaft in a penetrating mode at intervals, and a first rack meshed with the fast adjusting gear and a second rack meshed with the slow adjusting gear are arranged at the end part of an adjusting arm located in the guide sleeve at intervals.

In order to adjust the length of the adjusting arm conveniently, a quick adjusting knob is arranged at the end part of the mounting shaft positioned at the outer end of the quick adjusting gear, and quick adjusting scales corresponding to the quick adjusting knob are arranged on one side surface of the guide sleeve; the end part of the mounting shaft positioned at the outer end of the slow adjusting gear is provided with a slow adjusting knob, and the other side surface of the guide sleeve is provided with slow adjusting scales corresponding to the slow adjusting knob.

The guide sleeve is provided with a positioning assembly for fixing a mounting shaft, the positioning assembly comprises a positioning ratchet wheel and a ratchet matched with the positioning ratchet wheel, the positioning ratchet wheel is arranged on the mounting shaft between the fast adjusting gear and the slow adjusting gear in a penetrating mode, one end of the ratchet is hinged to one side face of the guide sleeve, and the other end of the ratchet is hinged to a button arranged outside the guide sleeve in a sliding mode through a connecting rod.

The utility model discloses a telescopic sleeve pipe can also be formed by the regulating pipe connection that the multisection connected gradually, and the grafting department of every adjacent connection regulating pipe all is provided with the preforming and return pearl.

The bearing plate is of a rectangular structure or a circular structure.

The utility model has the advantages of ingenious structure, the automatic correction of the rubber support can be realized by utilizing the geometric characteristics of the spiral slow descending head isocline during the centering, the operation is simple, the manpower is saved, the rapid centering of the rubber support can be realized, the centering time can be shortened within 3 minutes (which is 30 percent of the traditional centering manual centering method), the centering efficiency of the rubber support is greatly improved, and the test time of the rubber support is further shortened; meanwhile, the centering precision of the rubber support can be ensured, so that the coaxiality deviation and indication value deviation of the rubber support in the test are reduced, and the reliability of test data is effectively ensured.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic view of the equiangular helical centering structure of the present invention.

Fig. 3 is a spiral diagram of the spiral descent control head of fig. 2.

Fig. 4 is a fast-adjustment state diagram of the adjustment unit according to the present invention.

Fig. 5 is a slow-adjustment state diagram of the adjustment unit according to the present invention.

Fig. 6 is a locking state diagram of the positioning assembly of the present invention.

Fig. 7 is a non-locking state diagram of the positioning assembly of the present invention.

Fig. 8 is a schematic view of the adjustment part in a locked state.

Fig. 9 is another schematic view of the telescoping cannula of the present invention.

Fig. 10 is a locking state diagram of the rotating shaft according to the present invention.

Fig. 11 is a non-locking state diagram of the rotating shaft according to the present invention.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1, the rubber support quick centering device of the present invention comprises a bearing plate 1.1 for bearing a rubber support and a centering portion for centering the rubber support, wherein the bearing plate 1.1 has a rectangular structure (or a circular structure, of course), and a traveling wheel 1.2 traveling along a test workshop track 2 is provided at the bottom of the bearing plate 1.1;

the middle part comprises two pairs of equiangular spiral centering structures which are symmetrically arranged at the four edges of the top surface of the bearing plate 1.1 along the center, the four equiangular spiral centering structures have the same structure, and the distance between each pair of equiangular spiral centering structures and the center of the bearing plate 1.1 is equal;

as shown in fig. 2-3, the equiangular spiral centering structure includes a fixed seat 3.1 disposed on the bearing plate 1.1, a mounting seat 3.2 rotatably disposed on the fixed seat 3.1, and a telescopic sleeve disposed on the mounting seat 3.2 (the total length of the telescopic sleeve is preferably about 30 cm), wherein one end of the telescopic sleeve is connected with the mounting seat 3.2 into a whole through an elastic member (the elastic member is a compression spring 4, and k = 0.3-0.4); the other end of the telescopic sleeve pipe is provided with a spiral descent control head 5 (made of rubber materials) used for automatically correcting the rubber support through the rotation of a maintenance-free carbon brush bearing, and the telescopic sleeve pipe is close to the spiral descent control head 5 and is provided with universal rubber supporting wheels 6.2 through hanging edge hinges 6.1.

As shown in fig. 2, the telescopic sleeve comprises a guide sleeve 7.1 extending horizontally and an adjusting arm 7.2 (made of rectangular steel pipe with the size of 30mm × 40mm × 2 mm) provided with scale marks and penetrating through the guide sleeve 7.1 (the guide sleeve 7.1 is made of rectangular steel pipe with the size of 35mm × 45mm × 3 mm), and an adjusting part for adjusting the extending length of the adjusting arm 7.2 is arranged at the insertion position of the guide sleeve 7.1 and the adjusting arm 7.2;

as shown in fig. 2 and 4, the adjusting portion includes an installation shaft 8.1 penetrating through the guide sleeve 7.1, two ends of the installation shaft 8.1 extend outward to form the guide sleeve 7.1, a fast adjusting gear 8.2 and a slow adjusting gear 8.3 are arranged on the installation shaft 8.1 in the guide sleeve 7.1 at intervals, a first rack 8.4 engaged with the fast adjusting gear 8.2 and a second rack 8.5 engaged with the slow adjusting gear 8.3 are arranged at intervals on the end of the adjusting arm 7.2 in the guide sleeve 7.1, and the distance between the fast adjusting gear 8.2 and the slow adjusting gear 8.3 is smaller than the distance between the first rack 8.4 and the second rack 8.5; for convenience of adjustment, a quick adjusting knob 8.6 is arranged at the end part of the mounting shaft 8.1 positioned at the outer end of the quick adjusting gear 8.2, and a quick adjusting scale corresponding to the quick adjusting knob 8.6 is arranged on one side surface of the guide sleeve 7.1; the end part of the mounting shaft 8.1 positioned at the outer end of the slow adjusting gear is provided with a slow adjusting knob 8.7, and the other side surface of the guide sleeve 7.1 is provided with slow adjusting scales corresponding to the slow adjusting knob 8.7. When the adjusting device works, as shown in fig. 4, the quick adjusting gear 8.2 is pulled outwards to be meshed with the first rack 8.4, and the quick adjustment of the adjusting arm 7.2 is realized by rotating the quick adjusting knob 8.6; as shown in fig. 5, the slow adjustment gear 8.3 is pulled in the other direction to engage with the second rack 8.5, and fine adjustment of the adjustment arm 7.2 is achieved by turning the slow adjustment knob 8.7.

As shown in fig. 2 and 6, the guide sleeve 7.1 is provided with a positioning assembly for fixing the mounting shaft 8.1, which includes a positioning ratchet wheel 9.1 and a ratchet 8.2 cooperating with the positioning ratchet wheel 9.1, the positioning ratchet wheel 9.1 is arranged on the mounting shaft 8.1 between the fast adjustment gear 8.2 and the slow adjustment gear 8.3, one end of the ratchet 8.2 is hinged on one side of the guide sleeve 7.1, and the other end thereof is hinged with a button 9.4 slidably arranged outside the guide sleeve 7.1 through a connecting rod 9.3. The slide button 9.4 causes the ratchet teeth 8.2 to catch with the ratchet wheel to effect the fixing of the mounting shaft 8.1 (as shown in particular in fig. 6 and 8), and the slide button 9.4 in the opposite direction causes the ratchet teeth 8.2 to move away from the positioning ratchet wheel 9.1 (as shown in particular in fig. 7) in order to adjust the position of the mounting shaft 8.1 or to rotate the mounting shaft 8.1.

In practical manufacturing, the telescopic sleeve can also adopt a structure as shown in fig. 9, the telescopic sleeve comprises a plurality of adjusting pipes 10.1 which are connected in sequence, and an elastic sheet 10.2 and a return bead 10.3 (namely an umbrella handle telescopic structure) which are in an annular structure are arranged inside the splicing part of two adjacent adjusting pipes 10.1. Of course other telescoping arrangements may be used for the telescoping tubes.

In actual installation, in order to realize the automatic rotation and reset of the telescopic sleeve, as shown in fig. 2 and 10, a rebound spring 11.1 is arranged in the fixing seat 3.1, the lower part of the rotating shaft 11.2 is connected with the rebound spring 11.1, the upper part of the rotating shaft 11.2 is arranged on the mounting seat 3.2 in a penetrating manner, a pressing head 11.3 (the pressing head 11.3 is of a pressing structure) is horizontally arranged on the fixing seat 3.1 at the position corresponding to the rotating shaft 11.2, and a positioning hole matched with the inserting core of the pressing head 11.3 is formed in the rotating shaft 11.2. When the spring back spring is in work, the telescopic sleeve is horizontally rotated, the telescopic sleeve is rotated by 90 degrees to be rotated to a state perpendicular to the side edge from a state parallel to the side edge of the bearing plate 1.1, the pressing head 11.3 is pressed, the inserting core of the pressing head is inserted into the positioning hole to lock the telescopic sleeve, and the spring back spring 11.1 is in a stressed state, as shown in fig. 10 in particular; after the centering operation is completed, the pressing head 11.3 is pressed to retract the inserting core from the positioning hole (as shown in fig. 11 in particular), the rotating shaft 11.2 is in a non-locking state, and the telescopic sleeve automatically rotates and resets under the action of the rebound spring 11.1.

The following takes the rapid centering of the rubber support as an example, and specifically describes the specific centering method of the rapid centering device for the rubber support, which comprises the following steps:

firstly, sequentially rotating the spiral line slow descending heads 5 at each edge of the bearing plate 1.1 by 90 degrees to enable the spiral line slow descending heads to rotate to a state perpendicular to the edge from an original edge hanging state, enabling the spiral line slow descending heads 5 to be located in concentric circles at the center of the bearing plate 1.1, and pressing the pressing head 11.3 to lock the rotating shaft 11.2 so as to position the telescopic sleeve;

and step two, sequentially adjusting the length of each telescopic sleeve according to the specification of the rubber support to be detected, so that the central distance between each spiral descent control head 5 and the bearing plate 1.1 is equal, and the specific adjusting method comprises the following steps: the extension length of the adjusting pipe is adjusted by rotating the quick adjusting knob 8.6, then the mounting shaft 8.1 is pulled to enable the slow adjusting gear 8.3 to be meshed with the second rack 8.5, and then the slow adjusting knob 8.7 is rotated to carry out fine adjustment;

thirdly, flatly placing the rubber support to be detected on the spiral descent control head 5, knocking the rubber support outside a contact point of the rubber support and the spiral descent control head 5, so that the rubber support is automatically corrected under the action of the spiral descent control head 5 until the rubber support and the upper surface of the bearing plate 1.1 have no obvious gradient;

and fourthly, sequentially adjusting the length of each telescopic sleeve to enable each telescopic sleeve to extend for 2mm, wherein the specific adjustment method comprises the following steps: the sliding button 9.4 drives the ratchet 8.2 away from the positioning ratchet wheel 9.1, so that the adjusting pipe is in an unlocked state, and the telescopic sleeve moves about 2mm towards the center direction of the bearing plate 1.1 under the action of the compression spring 4;

in the adjusting process, the spiral descent control head 5 is forced to rotate towards the center direction of the bearing plate 1.1, and the outer end of the spiral descent control head 5 is rubbed with the bearing plate 1.1, so that the bridge support and the bearing plate 1.1 are vertically centered;

and fifthly, sequentially adjusting each telescopic sleeve (enabling the adjusting pipe to retract into the guide sleeve 7.1 by rotating the fast adjusting knob 8.6 or the slow adjusting knob 8.7) to enable the spiral descent control head 5 to be separated from the rubber support, centering the rubber support on the bearing plate 1.1, and finishing centering operation of the rubber support.

After the centering operation is finished, the pressing head 11.3 of each equiangular spiral centering mechanism is pressed in sequence, so that the equiangular spiral centering mechanisms horizontally rotate to the initial positions, and the bearing plate 1.1 is pushed to the lower side of the testing machine for testing.

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

Claims (10)

1. The utility model provides a quick centering device of rubber support, is including the loading board that is used for bearing rubber support, its characterized in that: also included is a centering portion for centering the rubber mount, which includes at least two pairs of equiangular helical centering structures symmetrically disposed at the top surface edge of the carrier plate.

2. The rubber mount quick centering device of claim 1, characterized in that: the equiangular spiral centering structure comprises a fixed seat arranged on the bearing plate, a mounting seat arranged on the fixed seat in a rotating mode and a telescopic sleeve arranged on the mounting seat, wherein the other end of the telescopic sleeve is provided with a spiral descent control head used for finely adjusting the rubber support.

3. The rubber mount quick centering device of claim 2, characterized in that: the telescopic sleeve is fixedly connected with the mounting seat into a whole through an elastic piece.

4. The rubber mount quick centering device of claim 2, characterized in that: and universal rubber supporting wheels are arranged on the telescopic sleeve close to the spiral descent control head through hanging edge hinges.

5. The rubber mount quick centering device of claim 2, characterized in that: the telescopic sleeve comprises a guide sleeve which horizontally extends and an adjusting arm which is arranged in the guide sleeve in a penetrating mode and provided with scale marks, and an adjusting portion used for adjusting the extending length of the adjusting arm is arranged at the connecting end of the guide sleeve and the adjusting arm.

6. The rubber mount quick centering device of claim 5, characterized in that: the adjusting part comprises an installation shaft arranged on the guide sleeve in a penetrating mode, a fast adjusting gear and a slow adjusting gear arranged on the installation shaft in a penetrating mode at intervals, and a first rack meshed with the fast adjusting gear and a second rack meshed with the slow adjusting gear are arranged at the end part of an adjusting arm located in the guide sleeve at intervals.

7. The rubber mount quick centering device of claim 6, characterized in that: a quick adjusting knob is arranged at the end part of the mounting shaft positioned at the outer end of the quick adjusting gear, and a quick adjusting scale corresponding to the quick adjusting knob is arranged on one side surface of the guide sleeve; the end part of the mounting shaft positioned at the outer end of the slow adjusting gear is provided with a slow adjusting knob, and the other side surface of the guide sleeve is provided with slow adjusting scales corresponding to the slow adjusting knob.

8. The rubber mount quick centering device of claim 6, characterized in that: the guide sleeve is provided with a positioning assembly for fixing a mounting shaft, the positioning assembly comprises a positioning ratchet wheel and a ratchet matched with the positioning ratchet wheel, the positioning ratchet wheel is arranged on the mounting shaft between the fast adjusting gear and the slow adjusting gear in a penetrating mode, one end of the ratchet is hinged to one side face of the guide sleeve, and the other end of the ratchet is hinged to a button arranged outside the guide sleeve in a sliding mode through a connecting rod.

9. The rubber mount quick centering device of claim 2, characterized in that: the telescopic sleeve comprises a plurality of sections of adjusting pipes which are sequentially connected, and each adjacent inserting position connected with the adjusting pipe is provided with an elastic pressing sheet and a return bead.

10. The rubber mount quick centering device of claim 1, characterized in that: the bearing plate is of a rectangular structure or a circular structure.

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