KR102634483B1 - Testing apparatus of brake caliper for vehicle - Google Patents

Abstract

The present invention relates to a brake caliper testing device for a commercial vehicle, comprising a main body portion, a support portion extending from the main body portion and supporting the brake caliper, a fluid supply portion that supplies working fluid to the brake caliper, and a fluid supply portion connected to the brake caliper. It is characterized by including a pressure regulator that adjusts the pressure value of the working fluid supplied to the caliper.

Description

Brake caliper testing device for commercial vehicles {TESTING APPARATUS OF BRAKE CALIPER FOR VEHICLE}

The present invention relates to a brake caliper testing device for commercial vehicles, and more specifically, to a brake caliper testing device for commercial vehicles capable of testing air brake calipers.

Generally, automobiles are equipped with a brake device to brake the automobile. In this brake device, when the driver steps on the brake pedal, the pressing force is applied to the brake disc and brake pad through a predetermined process to brake the car by friction generated between the brake disc and brake pad. Recently, as the performance of automobiles has increased, a brake system with sufficient braking power and stability under any conditions is required to ensure strong and stable braking performance.

In response to such demands, conventional brake dynamo tests have been used to determine the performance of automobile brakes by measuring the general performance of the brakes, squeal noise, wear of friction materials, high-speed abnormal vibration, and effectiveness characteristics. However, the test equipment for conventional brake performance tests has limitations in usability and usability due to the excessively high test cost for a single test, and it cannot confirm the operational durability of large-capacity air brake calipers mounted on large vehicles such as trucks and buses. There is a problem.

The background technology of the present invention is disclosed in Korean Patent Publication No. 10-2009-0016136 (published on February 13, 2009, title of the invention: Testing apparatus and method for automobile brake discs).

The purpose of the present invention is to provide a brake caliper test device for commercial vehicles that can check the operability and durability of the brake caliper.

Additionally, the purpose of the present invention is to provide a brake caliper test device for commercial vehicles that can vary test conditions such as test environment, pressure, cycle, and number of times.

In order to solve the above-described problem, a brake caliper test device for a commercial vehicle according to the present invention includes: a main body portion; a support portion extending from the main body portion and supporting the brake caliper; and supplying working fluid to the brake caliper. fluid supply unit; and a pressure control unit connected to the fluid supply unit and controlling the pressure value of the working fluid supplied to the brake caliper.

Additionally, the main body portion is provided to be movable.

In addition, it further includes a moving part that supports the main body to be movable with respect to the ground.

In addition, the fluid supply unit may include: a compression unit that compresses and supplies the working fluid; and a delivery unit connected to the compression unit to provide a flow path for the working fluid; and a chamber unit provided between the transmission unit and the brake caliper and supplying the working fluid received from the transmission unit to the brake caliper.

In addition, the support part supports a plurality of the brake calipers, and the fluid supply part is provided between the transmission part and the chamber part, and further includes a branch part that branches the working fluid to each of the brake calipers.

In addition, the branch part includes an inlet into which the working fluid flows through the delivery part; and a removal part that removes moisture from the working fluid flowing into the inlet; and the moisture removed by the removal part includes a filter unit that filters out foreign substances; and a moving unit that receives the working fluid from which moisture has been removed from the removal unit; and a distribution unit that distributes the working fluid delivered to the moving unit to the plurality of brake calipers.

In addition, the removal unit includes: a removal unit body in communication with the inlet; a blocking unit disposed inside the removal unit body to block passage of the moisture; and a blocking unit formed through the blocking unit to allow passage of the working fluid. a passing part that allows; and a falling part that allows the moisture falling from the blocking part to flow into the filter part; and a spacer provided between the blocking part and the falling part, and separating the blocking part from the falling part.

In addition, it further includes a cover portion disposed to face the moving portion and pressing the blocking portion toward the falling portion.

In addition, it further includes a pressure maintenance part provided between the removal part and the cover part and maintaining the pressure of the working fluid delivered to the moving part uniformly.

Additionally, the pressure holding portions are provided in plural numbers and are arranged at predetermined intervals along the circumferential direction of the removal portion body.

Additionally, the pressure regulator repeatedly raises and lowers the pressure value of the working fluid supplied to the brake caliper at a set cycle.

In addition, the pressure regulator is provided in the delivery unit, and an opening and closing unit that opens and closes the delivery unit to allow or restrict the flow of the working fluid; and, provided in the delivery unit, when the delivery unit is closed, the working fluid is supplied to the outside. A discharge part that discharges to; and a control unit connected to the opening/closing unit and the discharge unit, and controlling operations of the opening/closing unit and the discharge unit.

Additionally, the control unit may include a timer unit that repeatedly transmits a first signal and a second signal to the opening/closing unit and the discharge unit at the set period; and a counter unit connected to the timer unit and measuring the number of times the transmission unit is opened and closed using the first signal and the second signal from the timer unit.

In addition, the pressure control unit further includes a pressure measuring unit that measures the pressure value of the working fluid supplied to the brake caliper.

The brake caliper test device for commercial vehicles according to the present invention can check the operating performance of the brake caliper with a relatively simple structure by controlling the operating fluid supply through the fluid supply unit and the pressure control unit, thereby reducing the cost and effort of manufacturing and testing. You can save money.

In addition, the brake caliper test device for commercial vehicles according to the present invention can implement an environment simulating an actual vehicle by changing the installation position of the main body portion by a moving part, so that performance tests can be performed in a test environment under various conditions.

In addition, the brake caliper testing device for commercial vehicles according to the present invention is equipped with a support portion to support a plurality of brake calipers, so that multiple brake calipers can be tested simultaneously, enabling rapid testing.

In addition, the brake caliper testing device for commercial vehicles according to the present invention can simultaneously test a plurality of brake calipers using only one compression section due to the branching section, thereby improving test efficiency.

In addition, the brake caliper test device for commercial vehicles according to the present invention can remove moisture contained in the working fluid supplied to the brake caliper through the removal unit, thereby preventing damage and performance degradation of the brake caliper due to moisture inflow. .

In addition, the brake caliper test device for commercial vehicles according to the present invention can secure a space for the working fluid to flow between the removal part and the cover part by means of the pressure holding part and at the same time maintain the pressure supplied to the branch part evenly. there is.

In addition, the brake caliper testing device for commercial vehicles according to the present invention can simultaneously test a plurality of brake calipers using only one compression section due to the branching section, thereby improving test efficiency.

In addition, the brake caliper test device for commercial vehicles according to the present invention can obtain more accurate test results because information on the supply state of the working fluid can be visually confirmed by the control unit.

In addition, the brake caliper test device for commercial vehicles according to the present invention can set the cycle of the timer unit and the number of times of the counter unit to various values, thereby confirming the operability and durability of the brake caliper under various test conditions.

In addition, the brake caliper test device for commercial vehicles according to the present invention can confirm the operability and durability of not only new but also remanufactured brake calipers, making it possible to secure quality assurance for remanufactured products.

1 is a perspective view schematically showing the configuration of a brake caliper testing device for commercial vehicles according to an embodiment of the present invention.
Figure 2 is a front view schematically showing the configuration of a brake caliper testing device for a commercial vehicle according to an embodiment of the present invention.
Figure 3 is a conceptual diagram schematically showing the connection relationship between the fluid supply unit and the pressure control unit according to an embodiment of the present invention.
Figure 4 is a conceptual diagram schematically showing the configuration of a fluid supply unit according to an embodiment of the present invention.
Figure 5 is an exploded perspective view schematically showing the configuration of a branch according to an embodiment of the present invention.
Figure 6 is a cross-sectional view schematically showing the configuration of a branch portion according to an embodiment of the present invention.
Figure 7 is a conceptual diagram schematically showing the configuration of a pressure regulator according to an embodiment of the present invention.
Figure 8 is a plan view schematically showing the configuration of a control unit according to an embodiment of the present invention.
Figure 9 is a conceptual diagram schematically showing the configuration of a control unit according to an embodiment of the present invention.

Hereinafter, an embodiment of a brake caliper testing device for commercial vehicles according to the present invention will be described with reference to the attached drawings.

In this process, the thickness of lines or sizes of components shown in the drawing may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

In addition, in this specification, when a part is said to be "connected (or connected)" to another part, this does not only mean that it is "directly connected (or connected)" but also "connected (or connected)" with another member in between. Also includes cases where there is an “indirect connection (or connection).” In this specification, when a part is said to “include (or include)” a certain component, this does not exclude other components, unless specifically stated to the contrary, but rather “includes (or includes)” other components. It means you can do it.

Additionally, the same reference numerals may refer to the same components throughout this specification. Even if the same or similar reference signs are not mentioned or explained in a particular drawing, the numbers may be explained based on other drawings. Additionally, even if there are parts that are not indicated by reference signs in a specific drawing, those parts can be explained based on other drawings. In addition, the number, shape, size, and relative differences in size of detailed components included in the drawings of the present application are set for convenience of understanding, do not limit the embodiments, and may be implemented in various forms.

Figure 1 is a perspective view schematically showing the configuration of a brake caliper testing device for a commercial vehicle according to an embodiment of the present invention, and Figure 2 is a schematic view showing the configuration of a brake caliper testing device for a commercial vehicle according to an embodiment of the present invention. This is the front view showing.

Referring to Figures 1 and 2, the brake caliper test device 1 for a commercial vehicle according to an embodiment of the present invention includes a main body 100, a support part 200, a moving part 300, and a fluid supply part 400. , includes a pressure control unit 500.

The brake caliper 2 described below moves forward and backward by the pressure of the working fluid supplied from the chamber portion 440, which will be described later, and is provided with a push rod to pressurize or depressurize the brake pad, so that it is used for trucks or trucks that require a large braking force. Let's use an example to explain that it is an air-type brake caliper that generates braking force for large vehicles such as buses. However, the brake caliper 2 is not limited to this form, and its design can be changed to various types of disc brake devices, such as a hydraulic brake caliper that generates braking force by hydraulic pressure.

In addition, the working fluid described below will be explained by taking air as an example.

The body portion 100 forms one side of the exterior of the brake caliper testing device 1 for commercial vehicles according to an embodiment of the present invention and supports the support portion 200, which will be described later. The main body 100 may be equipped to travel on the ground by a moving part 300, which will be described later. Accordingly, the main body 100 can freely change the installation position of the brake caliper test device 1 for a commercial vehicle according to an embodiment of the present invention according to various test conditions such as a room temperature test or an environmental resistance test. The main body 100 according to an embodiment of the present invention may be formed in the shape of a frame having a substantially box shape. The main body 100 may include a material with high rigidity, such as steel, to sufficiently withstand the load.

The support portion 200 extends from the main body portion 100 and supports the brake caliper 2 during an operation test of the brake caliper 2. The support portion 200 is provided so that the brake caliper 2 can be detachably coupled to it, so that the brake caliper 2 can be smoothly replaced. The support portion 200 may be provided to support a plurality of brake calipers 2. Accordingly, the support unit 200 can test multiple brake calipers 2 at the same time, ensuring speed and efficiency of testing.

The support part 200 according to an embodiment of the present invention may include a fixing part 210 and a support member 220.

The fixing part 210 is fixed to the upper side of the main body 100 and supports the support member 220, which will be described later. The fixing part 210 according to an embodiment of the present invention is formed in a shape similar to a substantially ring-shaped axle housing and is fixed to the upper side of the main body 100. The fixing part 210 may be detachably coupled to the main body 100 by bolting or the like, and may also be integrally coupled with the main body 100 by welding or the like.

One side of the support member 220 is connected to the fixing part 210, and the other side extends to the outside of the fixing part 210. One side of the support member 220 may be integrally connected to the fixing part 210 by welding or the like, and may also be detachably connected to the fixing part 210 by bolting or the like. The other side of the support member 220 is formed so that the brake caliper 2 can be detachably coupled to it by bolting or the like, and supports the brake caliper 2. A plurality of support members 220 may be provided, each supporting a different brake caliper 2. In this case, the plurality of support members 220 are arranged to be spaced apart along the circumferential direction of the fixing part 210 and extend in different directions. The support member 220 according to an embodiment of the present invention may be formed in a shape similar to the axle shaft of a vehicle. Accordingly, the support member 220 can implement the test conditions of the brake caliper 2 more closely to reality. The support members 220 are provided in pairs and extend to both sides of the fixing part 210, respectively. A pair of support members 220 respectively fix and support a pair of brake calipers 2 by bolting or the like. The shape of the support member 220 is not limited to the shape shown in FIGS. 1 and 2, and various design changes are possible within the technical idea of a shape capable of supporting the brake caliper 2.

The moving unit 300 supports the main body 100 so that it can move with respect to the ground, thereby providing driving performance to the main body 100. The moving unit 300 according to an embodiment of the present invention is fixed to the lower side of the main body 100 and may be formed in the form of a cart in rolling contact with the ground. The moving unit 300 is moved relative to the ground when the user applies an external force to the main body 100, and can move the main body 100. It is supplied with power from an external power source and moves relative to the ground, and the main body 100 is moved relative to the ground. It is also possible to automatically move the unit 100. The specific shape of the moving part 300 is not limited to the shape shown, and various design changes are possible within the technical idea of a shape that can movably support the main body part 100.

The fluid supply unit 400 supplies working fluid to the brake caliper (2). More specifically, the fluid supply unit 400 increases the pressure value of the working fluid above the set pressure and supplies it to the brake caliper 2, and moves the push rod of the brake caliper 2 forward by the pressure of the working fluid.

Figure 3 is a conceptual diagram schematically showing the connection relationship between the fluid supply unit and the pressure control unit according to an embodiment of the present invention, and Figure 4 is a conceptual diagram schematically showing the configuration of the fluid supply unit according to an embodiment of the present invention.

1 to 4, the fluid supply unit 400 according to an embodiment of the present invention includes a compression unit 410, a delivery unit 420, a branch unit 430, and a chamber unit 440.

The compression unit 410 compresses the working fluid and supplies it to the delivery unit 420, which will be described later. The compression unit 410 according to an embodiment of the present invention may be formed in the form of an air compressor or compressor that compresses air received from the outside to a set pressure and discharges it. Here, various design changes are possible within the range of pressure values that can smoothly operate the brake caliper (2), such as the set pressure of about 7 bar or more.

The transmission unit 420 is connected to the compression unit 410 and provides a flow path for the working fluid. The transmission unit 420 according to an embodiment of the present invention may be formed in the form of a hollow hose with one side connected to the compression unit 410 and the other side connected to the branch portion 430, which will be described later. The delivery unit 420 flows the working fluid supplied from the compression unit 410 inside and transfers it to the branch unit 430. The transmission unit 420 may include a material with pressure-resistant performance, such as polymer synthetic resin, to sufficiently withstand the pressure of the working fluid compressed by the compression unit 410.

The branch part 430 is provided between the transmission part 420 and the chamber part 440, which will be described later, and branches the working fluid to each brake caliper 2. More specifically, when the support portion 200 supports a plurality of brake calipers 2, the branch portion 430 distributes the pressure of the working fluid delivered from the transmission portion 420 to each different brake caliper 2. do. Accordingly, the branch portion 430 can operate all of the plurality of brake calipers 2 with only one compression portion 410, thereby reducing manufacturing costs. The branch portion 430 may be installed separately on the outside of the main body 100, and may also be connected to and supported by the main body 100. The branch portion 430 may distribute the same pressure to each chamber portion 440, and may also distribute different pressures to each chamber portion 440.

Figure 5 is an exploded perspective view schematically showing the configuration of a branch according to an embodiment of the present invention, and Figure 6 is a cross-sectional view schematically showing the configuration of a branch according to an embodiment of the present invention.

5 and 6, the branch part 430 according to an embodiment of the present invention includes a housing 431, an inlet part 432, a removal part 433, a filter part 434, and a flow part 435. ), a cover part 436, a pressure holding part 437, a distribution part 438, and a recovery part 439.

The housing 431 forms a schematic appearance of the branch 430 according to an embodiment of the present invention. The housing 431 is formed so that a removal part 433, a moving part 435, a cover part 436, a pressure maintaining part 437, etc. can be installed therein. The housing 431 may be provided to be open and closed so that replacement and management of components installed therein can be easily performed. The housing 431 according to an embodiment of the present invention forms the exterior of one side and the other side of the housing 431, respectively, and includes a first housing 4311 and a second housing 4312 that are separably connected to each other by screws, etc. It can be included.

The inlet 432 receives the working fluid through the delivery part 420 and transfers the introduced working fluid to the removal part 433, which will be described later. The inlet 432 according to an embodiment of the present invention may be formed in the form of a pipe extending from one side of the first housing 4311. One side of the inlet portion 432 is in communication with the transmission portion 420 and receives working fluid through the transmission portion 420. The other side of the inlet part 432 communicates with the removal part body 4311 of the removal part 433 and delivers the working fluid supplied from the delivery part 420 to the inside of the removal part body 4311.

The removal unit 433 removes moisture from the working fluid flowing into the inlet 432. That is, the removal unit 433 is provided to prevent moisture generated during the compression process through the compression unit 410 from being supplied to the brake caliper 2 through the distribution unit 438, which will be described later. Accordingly, the removal unit 433 can prevent the brake caliper 2 from being damaged or operating efficiency reduced due to moisture or foreign substances.

The removal part 433 according to an embodiment of the present invention includes a removal part body 4331, a blocking part 4332, a passing part 4333, a falling part 4334, a separation part 4335, and a sealing part 4336. Includes.

The removal unit body 4331 forms a schematic appearance of the removal unit 433 and communicates with the inlet 432 and the recovery unit 439. The removal body 4331 according to an embodiment of the present invention is formed in a hollow cylindrical shape with open upper and lower ends and is disposed in the central part of the first housing 4331. A first through hole (4331a) and a second through hole (4331b) are formed on both sides of the removal unit body 4331, which vertically penetrate the removal unit body 4331. Both sides of the removal unit body 4331 communicate with the inlet 432 and the recovery unit 439 through the first through hole 4331a and the second through hole 4331b, respectively. The first through hole 4331a and the second through hole 4331b may be arranged side by side in a direction perpendicular to the height direction of the removal unit body 4331. The removal unit body 4331 may be arranged parallel to the direction perpendicular to the ground. Accordingly, the removal unit body 4331 is blocked by the blocking unit 4332, which will be described later, and the condensed moisture can be induced to fall by its own weight.

The blocking unit 4332 is disposed inside the removal unit body 4331, and the moisture contained in the working fluid delivered to the inside of the removal unit body 4332 through the inlet part 432 flows to the flowing unit 435, which will be described later. Blocks passage toward the The blocking portion 4332 according to an embodiment of the present invention is formed to have a cylindrical shape and is disposed on the inner upper side of the removal portion body 4331. The blocking portion 4332 is formed to have its upper side blocked so as to interfere with the flow of the working fluid flowing into the removal portion body 4331. That is, the blocking part 4332 prevents the working fluid and the moisture contained in the working fluid from being transferred to the moving part 435 by the blocked upper side. The upper side of the blocking portion 4332 is in close contact with the cover portion 436, which will be described later. In this case, the blocking portion 4332 may be formed of a material capable of elastic deformation, such as rubber or synthetic resin, so that it can be more firmly adhered to the cover portion 436, which will be described later. The lower side of the blocking unit 4332 may be disposed at a position higher than the first through hole 4331a and the second through hole 4331b within the removal unit body 4331. Accordingly, the blocking portion 4332 may not interfere with the movement of the working fluid through the first through hole 4331a and the second through hole 4331b. The lower side of the blocking portion 4332 may be supported within the removal portion body 4332 in contact with a spaced portion 4335 to be described later.

The passing portion 4333 is formed to penetrate the blocking portion 4332 and allows the working fluid delivered into the interior of the removal unit body 4332 through the inlet portion 432 to pass toward the flowing portion 435. . The passing part 4333 according to an embodiment of the present invention may be formed in the shape of a hole that passes vertically vertically through the upper side of the blocking part 4332. The diameter of the passage portion 4333 can be designed in various ways within a range of diameters that allow passage of air and simultaneously block the passage of moisture or various foreign substances. There may be a plurality of passing parts 4333, and the plurality of passing parts 4333 may be arranged to be spaced apart at a predetermined distance along the circumferential direction of the blocking part 4332.

The falling part 4334 causes moisture falling from the blocking part 4332 to flow into the filter part 434. More specifically, as the falling part 4334 is blocked by the blocking part 4332, it guides the moisture condensed on the inner surface of the blocking part 4332 to fall to the filter part 434 by its own weight. The dropping part 4334 according to an embodiment of the present invention is formed to have the shape of a hollow ring and is disposed on the inner lower side of the removal part body 4331. The dropping portion 4334 communicates with the open lower side of the removal portion body 4331 through a hollow formed in the central portion. The upper side of the dropping portion 4334 is disposed to face the lower side of the blocking portion 4332 at a predetermined distance apart. The upper side of the dropping part 4334 may be disposed at a position lower than the first through hole 4331a and the second through hole 4331b inside the removal part body 4331. Accordingly, the falling part 4334 may not interfere with the movement of the working fluid through the first through hole 4331a and the second through hole 4331b.

The spacing portion 4335 is provided between the blocking portion 4332 and the falling portion 4334, and separates the blocking portion 4332 from the falling portion 4334 by a predetermined distance. The spaced part 4335 according to an embodiment of the present invention has both ends in contact with the lower side of the blocking part 4332 and the upper side of the falling part 4334 inside the removal part body 4331, and has elastic restoring force in the longitudinal direction. It may be formed in the form of a coil spring provided to have. Since the spacing portion 4335 is provided with elastic restoring force, it is possible to space the blocking portion 4332 a predetermined distance from the falling portion 4334 and at the same time bring the blocking portion 4332 into close contact with the cover portion 436.

The sealing portion 4336 contacts the blocking portion 4332 and seals the removal portion body 4331. More specifically, the sealing part 4336 seals the gap formed between the blocking part 4332 and the removal part body 4331 so that the working fluid flowing into the removal part body 4331 passes only through the passing part 4333. . The sealing portion 4336 according to an embodiment of the present invention is formed to have a hollow ring shape and is in close contact with the upper side of the blocking portion 4332. The diameter of the outer peripheral surface of the sealing portion 4336 is formed to correspond to the diameter of the inner peripheral surface of the removal unit body 4331. Accordingly, the outer peripheral surface of the sealing unit 4336 is in contact with the inner peripheral surface of the removal unit body 4331, so that moisture and working fluid flowing into the removal unit body 4331 do not pass through the blocking unit 4332 and the passing unit 4333. Leakage from the body 4331 can be prevented. The inner peripheral diameter of the sealing portion 4336 is formed to have a larger value than the diameter formed by the plurality of passing portions 4333. Accordingly, the sealing portion 4336 can prevent the lower side from blocking the passing portion 4333.

The filter unit 434 filters out foreign substances contained in the moisture removed by the removal unit 433. More specifically, the filter unit 434 can receive moisture condensed on the inner surface of the blocking unit 4332 and fall due to its own weight, and filter out foreign substances contained in the moisture before the received moisture is discharged to the outside. It is provided so that The filter unit 434 according to an embodiment of the present invention is fixed to the lower part of the first housing 4311 and is disposed to face the lower side of the removal unit body 4331 and the dropping unit 4334. The specific shape of the filter unit 434 can be changed in various designs within the technical concept of a filter that can filter out foreign substances contained in moisture.

The moving part 435 receives the working fluid from which moisture has been removed from the removal part 434. The moving part 435 according to an embodiment of the present invention may be illustrated as an empty space formed along the circumference of the removal part body 4331 inside the first housing 4311. The diameter and depth of the moving part 435 can be changed to various values depending on the size of the first housing 4311 and the removal body 4331.

The cover part 436 is disposed to face the moving part 435 and seals the moving part 435. That is, the cover part 436 is formed to cover the upper side of the moving part 435 and forms the boundary surface of the moving part 435 together with the inner surface of the first housing 4311. The cover portion 436 contacts the blocking portion 4332 and presses the blocking portion 4332 toward the falling portion 4334. Accordingly, the cover part 436 can allow the blocking part 4332 to be located at a set position inside the removal part body 4331.

The cover portion 436 according to an embodiment of the present invention may include a cover body 4361 and a pressing portion 4362.

The cover body 4361 is formed to have a substantially disk shape and is arranged to cover the upper side of the moving part 435. The lower side of the cover body 4361 may be formed to be concavely recessed toward the inside. Accordingly, the cover body 4361 can allow the moving part 435 to secure a wider space for the working fluid to flow. The lower edge of the cover body 4361 is in close contact with the first housing 4311 to prevent the working fluid from leaking from the moving part 435.

The pressure maintenance part 437 is provided between the removal part 433 and the cover part 436, and maintains the pressure of the working fluid delivered to the moving part 435 uniformly. More specifically, the pressure maintenance unit 437 provides a flow path for the working fluid delivered from the removal unit 433 to the moving unit 435, and at the same time, adjusts the flow path of the working fluid passing through the removal unit 433 to an appropriate size. By forming a , the working fluid is induced to be transmitted to the moving part 435 at a uniform pressure. The pressure holding portion 437 according to an embodiment of the present invention may be formed in the form of a protrusion that protrudes vertically upward from the removal portion body 4331. The upper end of the pressure holding part 437 is in contact with the lower side of the cover part 436 and supports the cover part 436. There are a plurality of pressure maintaining parts 437, and the plurality of pressure maintaining parts 437 are arranged at predetermined intervals along the circumferential direction of the removal unit body 4331. The number and spacing of the pressure holding units 437 can be designed in various ways depending on the pressure value of the working fluid to be delivered to the moving unit 435.

The distribution unit 438 distributes the working fluid delivered to the moving unit 435 to the plurality of brake calipers 2, respectively. The distribution unit 438 according to an embodiment of the present invention extends from the side of the first housing 4311 and may be formed in the form of a pipe with one side in communication with the moving unit 435. There may be a plurality of distribution units 438, and the other side of each distribution unit 438 communicates with the plurality of chamber units 440.

The recovery unit 439 recovers the working fluid flowing into the removal unit 433. The recovery part 439 according to an embodiment of the present invention extends from the side of the first housing 4311, and the recovery part 439 may be formed in the form of a pipe disposed on the opposite side from the inlet part 432. . One side of the inlet portion 432 communicates with the removal unit body 4311 through the second through hole 4311b and receives the working fluid that stays inside the removal unit body 4311 without passing through the passage part 4333. The other side of the recovery unit 439 is connected to the compression unit 410 or a separate working fluid storage means (not shown) to recover the working fluid. Accordingly, in the recovery unit 439, the flow rate of the working fluid passing through the passage part 4333 is relatively small compared to the flow rate of the working fluid supplied from the inlet part 432, so excessive pressure is formed inside the removal part body 4331. You can prevent it from happening.

The chamber unit 440 is provided between the transmission unit 420 and the brake caliper 2, and supplies the working fluid delivered from the transmission unit 420 to the brake caliper 2. When a plurality of brake calipers 2 are supported on the support part 200, a plurality of chamber parts 440 are provided and connected to each brake caliper 2. The plurality of chamber units 440 are individually connected to the other side of the pair of distribution units 438 and receive the working fluid distributed from the distribution unit 438. The plurality of chamber parts 440 individually supply the working fluid received from the branch part 430 to the plurality of brake calipers 2. The chamber portion 440 according to an embodiment of the present invention may be formed in the form of an air chamber with an empty interior. The chamber portion 440 is provided as a pair, and one side of each chamber portion 440 is connected to the branch pipe of the branch portion 430, and the other side is connected to the push rod of the brake caliper 2. The chamber portion 440 operates the brake caliper 2 by moving the push rod forward and backward according to the magnitude of the pressure value of the working fluid received from the branch portion 430.

The pressure control unit 500 is connected to the fluid supply unit 400 and adjusts the pressure value of the working fluid supplied to the brake caliper (2). More specifically, the pressure regulator 500 repeatedly raises and lowers the pressure value of the working fluid supplied to the brake caliper 2 by the fluid supply unit 400 at a set cycle. Accordingly, the pressure regulator 500 can move the push rod of the brake caliper 2 forward and backward at a set cycle, so that the operating performance of the brake caliper 2 can be continuously tested.

Figure 7 is a conceptual diagram schematically showing the configuration of a pressure regulator according to an embodiment of the present invention.

Referring to FIG. 7, the pressure adjusting unit 500 according to an embodiment of the present invention includes an opening/closing unit 510, a discharge unit 520, a pressure measuring unit 530, and a control unit 540.

The opening/closing unit 510 is provided in the transmission unit 420 and opens and closes the transmission unit 420 to allow or restrict the flow of working fluid through the transmission unit 420. The opening/closing unit 510 according to an embodiment of the present invention may be formed in the form of a solenoid valve installed on the flow path of the working fluid inside the transmission unit 420. The opening and closing unit 510 opens and closes the transmission unit 420 at a set cycle according to the opening and closing signal of the timer unit 542 provided in the control unit 540, which will be described later.

The discharge unit 520 is provided in the delivery unit 420 and discharges the working fluid to the outside of the delivery unit 420 when the delivery unit 420 is closed by the opening and closing unit 510. The discharge unit 520 according to an embodiment of the present invention includes a discharge pipe that branches off from the transmission unit 420 to provide a discharge path for the working fluid, and a drain valve that selectively opens and closes the discharge pipe according to a control signal from the control unit 540. may include. The discharge part 520 may be disposed at the rear end of the opening and closing part 510, that is, between the opening and closing part 510 and the branch part 440. The discharge unit 520 may be operated by a mechanism opposite to the opening/closing unit 510. That is, the discharge unit 520 closes the discharge path of the working fluid when the opening and closing unit 510 opens the delivery unit 420, and when the opening and closing unit 510 closes the delivery unit 420, the discharge path of the working fluid is closed. Open the exhaust path. Accordingly, the discharge unit 520 removes the residual pressure inside the delivery unit 420 when the delivery unit 420 is closed by the opening and closing unit 510, so that the pressure value of the working fluid delivered to the chamber unit 440 repeats at a set cycle. This allows it to rise and fall.

The pressure measuring unit 530 measures the pressure value of the working fluid supplied to the brake caliper (2). The pressure measuring unit 530 is provided in plural pieces and can measure the pressure value of the working fluid supplied to the brake caliper 2 at multiple points. More specifically, one of the plurality of pressure measuring units 530 is installed in the delivery unit 420 and can measure the pressure value of the working fluid flowing inside the delivery unit 420. , Another pressure measuring unit 530 is connected to the branch unit 430 and can measure the pressure value of the working fluid branched and supplied to each chamber unit 440. The pressure measuring unit 530 according to an embodiment of the present invention may be formed in the form of a pressure sensor or pressure gauge that can measure the pressure of fluid in a pipe.

The control unit 540 generally controls the operation of the pressure regulator 500. More specifically, the control unit 540 is connected to the opening and closing unit 510 and controls the operation of the opening and closing unit 510 to repeatedly open and close the transmission unit 420 at a set cycle. The control unit 540 is connected to the discharge unit 520 and controls the operation of the discharge unit 520 to repeatedly open and close the discharge path of the working fluid inside the delivery unit 420 at a set cycle. The control unit 540 may be provided to visually display the operating states of the opening/closing unit 510 and the discharge unit 520 and the measured values by the pressure measuring unit 530.

FIG. 8 is a plan view schematically showing the configuration of a control unit according to an embodiment of the present invention, and FIG. 9 is a conceptual diagram schematically showing the configuration of a control unit according to an embodiment of the present invention.

Referring to FIGS. 8 and 9, the control unit 540 according to an embodiment of the present invention includes a control box 541, a timer unit 542, a counter unit 543, and a pressure display unit 544.

The control box 541 forms the outline of the control unit 540 and provides a space where a timer unit 542, a counter unit 543, and a pressure display unit 544, which will be described later, can be installed. The control box 541 has a circuit board installed inside to electrically connect each component of the pressure regulator 500, and can be connected to an external power supply to supply power to each component of the pressure regulator 500. .

The timer unit 542 controls the operation of the opening/closing unit 510 and the discharge unit 520 by repeatedly transmitting the first signal and the second signal to the opening/closing unit 510 and the discharge unit 520 at a set cycle. The timer unit 542 according to an embodiment of the present invention may include a first timer 542a and a second timer 542b.

The first timer 542a transmits the first signal to the opening/closing unit 510 and the discharge unit 520. Here, the first signal may be exemplified as an electrical signal that operates the opening/closing unit 510 to open the transmission unit 420 and operates the discharge unit 520 to close the discharge path of the working fluid. That is, the first timer 542a allows the working fluid to flow through the delivery unit 420 by the first signal and restricts the working fluid from being discharged to the outside of the delivery unit 420. Accordingly, the first timer 542a can induce the working fluid whose pressure has been increased by the compression unit 410 to be supplied to the chamber unit 440 to move the push rod of the brake caliper 2 forward. The first timer 542a according to an embodiment of the present invention includes a first timer switch electrically connected to the opening/closing unit 510 and the discharge unit 520, and is installed in the control box 541 to set the first timer 542a. It may include a first light-emitting module such as an LED or a light bulb that turns on and off depending on the operating state.

The second timer 542b transmits a second signal to the opening/closing unit 510 and the discharge unit 520. Here, the second signal may be exemplified as an electrical signal that operates the opening/closing unit 510 to close the transmission unit 420 and operates the discharge unit 520 to open the discharge path of the working fluid. That is, the second timer 542b limits the flow of the working fluid through the delivery unit 420 through the second signal and allows the working fluid to be discharged to the outside of the delivery unit 420. Accordingly, the second timer 542b can induce the working fluid supplied to the chamber part 440 to be discharged to the outside and move the push rod of the brake caliper 2 backward. The second timer (542b) according to an embodiment of the present invention includes a second timer switch electrically connected to the opening/closing unit 510 and the discharge unit 520, and is installed in the control box 541 to activate the second timer (542b). It may include a second light-emitting module such as an LED or a light bulb that turns on and off depending on the operating state.

The first timer 542a and the second timer 542b repeatedly transmit the first and second signals to the opening/closing unit 510 and the discharge unit 520 according to a set cycle. The first timer 542a and the second timer 542b are provided so that the generation period of the first signal and the second signal can be changed according to the user's settings. The first timer 542a and the second timer 542b according to an embodiment of the present invention can alternately transmit the first signal and the second signal to the opening/closing unit 510 and the discharge unit 520 for 2 seconds. .

The counter unit 543 is connected to the timer unit 542 and measures the number of times the transmission unit 420 is opened and closed through the first and second signals of the timer unit 542. The counter unit 543 according to an embodiment of the present invention increases the counting signal by +1 as the first signal of the first timer 541a and the second signal of the second timer 542b reciprocate once at a set period. It may include a counter that outputs a counter and a counter display unit installed in the control box 541 to display in the form of numbers the number of counting signals output by the counter. The counter unit 543 may stop the operation of the timer unit 542 and the compression unit 410 when the counting signal reaches the number of times targeted by the user.

The pressure display unit 544 is connected to the pressure measuring unit 530 and displays the pressure value measured by the pressure measuring unit 530 to the outside. The pressure display unit 544 according to an embodiment of the present invention is installed in the control box 541 and can be formed in the form of a display that displays the pressure value measured by the pressure measurement unit 530 in the form of numbers. .

Hereinafter, the operating process of the brake caliper test device 1 for a commercial vehicle according to an embodiment of the present invention will be described in detail.

Referring to Figures 1 to 9, first, the compression unit 410 compresses the pressure of the working fluid to a set pressure and supplies it to the delivery unit 420.

The first timer 542a transmits the first signal to the opening/closing unit 510 and the discharge unit 520 to open the transmission unit 420 and block the discharge path of the working fluid.

The working fluid supplied to the transmission unit 420 is sequentially supplied to the brake caliper 2 through the transmission unit 420, branch unit 430, and chamber unit 440.

To describe the branching process of the working fluid through the branch part 430 in more detail, the working fluid flowing along the delivery part 420 is supplied to the inside of the removal part body 4331 through the inlet part 432.

Moisture formed in the working fluid during the compression process of the compression unit 410 is blocked from passing by the blocking unit 4332, and the working fluid from which the moisture has been removed passes through the passing unit 4333 and the blocking unit 4332.

Moisture whose passage is blocked by the blocking portion 4332 condenses on the inner surface of the blocking portion 4332 and falls toward the falling portion 4334 by its own weight.

The moisture that falls toward the falling part 4334 is sequentially passed through the falling part 4334 and the removal part body 4331 and is transferred to the filter part 434.

The filter unit 434 filters foreign substances contained within the moisture and discharges the moisture containing the foreign substances to the outside.

The working fluid that has passed through the passage part 4333 with the moisture removed is transferred to the flow part 435 through the adjacent pressure maintaining parts 437.

The working fluid delivered to the moving part 435 is distributed to a plurality of brake calipers 2 by the distribution part 438.

Thereafter, the push rod moves forward by the pressure of the working fluid supplied to the brake caliper (2) and pressurizes the brake pad.

Thereafter, the second timer 542b transmits the second signal to the opening/closing unit 510 and the discharge unit 520 to close the transmission unit 420 and open the discharge path of the working fluid.

The working fluid remaining in the delivery part 420, the branch part 430, and the chamber part 440 is discharged to the outside through the discharge part 520.

As the working fluid is discharged to the outside, the pressure of the working fluid supplied to the brake caliper 2 decreases, the push rod moves back, and the brake pad is depressurized.

The counter unit 543 increases the counting signal by +1 and outputs it as the first signal of the first timer 541a and the second signal of the second timer 542b are generated in one round trip.

The above-described operation is performed repeatedly as many times as the user desires.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely illustrative, and those skilled in the art will recognize that various modifications and other equivalent embodiments can be made therefrom. You will understand.

Therefore, the scope of technical protection of the present invention should be determined by the scope of the patent claims below.

1: Brake caliper test device for commercial vehicles 100: Main body
200: support part 210: fixing part
220: support member 300: moving part
400: fluid supply unit 410: compression unit
420: transmission part 430: branch part
431: Housing 4311: First housing
4312: second housing 432: inlet
433: Removal part 4331: Removal part body
4331a: first through hole 4331b: second through hole
4332: blocking part 4333: passing part
4334: Falling part 4335: Separated part
4336: sealing part 434: filter part
435: moving part 436: cover part
437: pressure maintenance unit 438: distribution unit
439: recovery part 440: chamber part
500: pressure control unit 510: opening and closing unit
520: Discharge unit 530: Pressure measurement unit
540: Control unit 541: Control box
542: Timer unit 542a: First timer
542b: second timer 543: counter unit
544: Pressure display unit

Claims (14)

main body;
a support portion extending from the main body portion and supporting a plurality of brake calipers;
a fluid supply unit that supplies working fluid to the brake caliper; and
It includes a pressure control unit connected to the fluid supply unit and controlling the pressure value of the working fluid supplied to the brake caliper,
The fluid supply unit,
A compression unit that compresses and supplies the working fluid;
a transmission unit connected to the compression unit to provide a flow path for the working fluid;
a chamber unit provided between the transmission unit and the brake caliper and supplying the working fluid received from the transmission unit to the brake caliper; and
It includes a branch part provided between the transmission part and the chamber part and branching the working fluid to each of the brake calipers,
The branch part is,
an inlet portion through which the working fluid flows through the delivery portion;
a removal unit that removes moisture from the working fluid flowing into the inlet;
a filter unit that filters out foreign substances contained in the moisture removed by the removal unit;
A moving part that receives the working fluid from which moisture has been removed from the removal part; and
It includes a distribution unit that distributes the working fluid delivered to the moving unit to the plurality of brake calipers,
The removal part,
A removal body in communication with the inlet portion;
A blocking portion disposed inside the removal portion body to block passage of the moisture;
a passing portion formed through the blocking portion to allow passage of the working fluid;
a falling part that introduces the moisture falling from the blocking part into the filter part; and
A brake caliper testing device for a commercial vehicle, comprising: a spacer provided between the blocking part and the falling part, and separating the blocking part from the falling part.
According to clause 1,
A brake caliper test device for commercial vehicles, characterized in that the main body portion is provided to be movable.
According to clause 2,
A brake caliper test device for a commercial vehicle, further comprising a moving part that movably supports the main body with respect to the ground.
delete delete delete delete According to clause 1,
A brake caliper testing device for a commercial vehicle, further comprising a cover portion disposed to face the moving portion and pressing the blocking portion toward the dropping portion.
According to clause 8,
A brake caliper test device for a commercial vehicle, further comprising a pressure maintaining part provided between the removal part and the cover part and maintaining the pressure of the working fluid delivered to the moving part uniformly.
According to clause 9,
A brake caliper test device for commercial automobiles, characterized in that the pressure holding portion is provided in plural numbers and arranged at predetermined intervals along the circumferential direction of the removal portion body.
According to clause 1,
The pressure regulator is a brake caliper test device for commercial vehicles, characterized in that the pressure value of the working fluid supplied to the brake caliper is repeatedly raised and lowered at a set cycle.
According to clause 11,
The pressure regulator,
An opening and closing part provided in the transmission unit and opening and closing the transmission unit to allow or restrict the flow of the working fluid;
a discharge part provided in the transmission unit and discharging the working fluid to the outside when the delivery unit is closed; and
A control unit connected to the opening/closing unit and the discharge unit, and controlling the operation of the opening/closing unit and the discharge unit. A brake caliper testing device for a commercial vehicle, comprising:
According to clause 12,
The control unit,
a timer unit that repeatedly transmits a first signal and a second signal to the opening/closing unit and the discharge unit at the set period; and
A counter unit connected to the timer unit and measuring the number of openings and closings of the transmission unit through the first signal and the second signal of the timer unit.
According to clause 12,
The pressure regulator,
A brake caliper test device for a commercial vehicle, further comprising a pressure measuring unit that measures the pressure value of the working fluid supplied to the brake caliper.